{"title":"Cases","description":"\u003cp\u003eEvery build starts with the case, and this collection carries the whole range: Ultra Thin Edition cases, the GS and SKX013 platforms, and the larger SKX007-family divers — from 33mm to 42mm, in steel, titanium and DLC black. All of them run Seiko NH movements, and the NH34 GMT-ready cases say so right in the title. Dimensions, included parts and movement support are listed on every product page. Use the filters below to narrow by line, size or GMT-readiness.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNarrow it down:\u003c\/strong\u003e  \u003ca href=\"\/collections\/watch-cases\" class=\"la-chip\"\u003eAll cases (30)\u003c\/a\u003e\u003ca href=\"\/collections\/watch-cases\/ultra-thin-cases\" class=\"la-chip\"\u003eUltra Thin (14)\u003c\/a\u003e\u003ca href=\"\/collections\/watch-cases\/gmt-nh34\" class=\"la-chip\"\u003eNH34 GMT-Ready (12)\u003c\/a\u003e\u003ca href=\"\/collections\/watch-cases\/33mm\" class=\"la-chip\"\u003e33mm (1)\u003c\/a\u003e\u003ca href=\"\/collections\/watch-cases\/34mm\" class=\"la-chip\"\u003e34mm (1)\u003c\/a\u003e\u003ca href=\"\/collections\/watch-cases\/36mm\" class=\"la-chip\"\u003e36mm (18)\u003c\/a\u003e\u003ca href=\"\/collections\/watch-cases\/38mm\" class=\"la-chip\"\u003e38mm (7)\u003c\/a\u003e\u003ca href=\"\/collections\/watch-cases\/39mm\" class=\"la-chip\"\u003e39mm (2)\u003c\/a\u003e\u003ca href=\"\/collections\/watch-cases\/42mm\" class=\"la-chip\"\u003e42mm (1)\u003c\/a\u003e\u003ca href=\"\/collections\/watch-cases\/titanium\" class=\"la-chip\"\u003eTitanium (4)\u003c\/a\u003e\u003ca href=\"\/collections\/watch-cases\/gold\" class=\"la-chip\"\u003eGold (1)\u003c\/a\u003e\u003ca href=\"\/collections\/watch-cases\/black\" class=\"la-chip\"\u003eDLC Black (4)\u003c\/a\u003e\u003c\/p\u003e","products":[{"product_id":"diver-watch-case-38mm-skx013-submariner-edition-fits-nh-gmt-movements-eta2893-sw330","title":"Diver Watch Case - 38mm - SKX013\/Submariner Edition (Fits NH \u0026 GMT Movements)","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe SKX Diver at 38mm — Seiko NH and Swiss Movements in One Case.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe Diver Watch Case 38mm is our SKX013-spec dive case, engineered to take two very different movements: the full range of Seiko NH calibers, and high-end Swiss movements — the ETA2893 and Sellita SW330. One case body, two build routes.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eIt keeps the submariner-style crown guard and SKX silhouette modders know, and it fits every one of our SKX013 mod parts — dials, hands, chapter rings and crowns. The screw-down crown and caseback are unique to this case and come included.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eSupplied as a donor case body and rated to 200m, so you choose the bezel, insert, crystal and chapter ring that suit your build.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eTwo movement families, one case body.\u003c\/strong\u003e\u003cbr\u003eRun a Seiko NH build, or step up to the Swiss ETA2893 or Sellita SW330 — the matching gold movement spacer and caseback come with that selection. Few aftermarket cases take both.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eSKX silhouette, submariner crown guard.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eDiameter 38mm, lug-to-lug 44.5mm, 20mm lugs. The submariner-style crown guard keeps the SKX character while protecting the screw-down crown.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFits every SKX013 mod part we make.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eOur SKX013 dials (28.5mm), hands, chapter rings and crowns all drop in as expected. Tested on our own parts.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eSeiko NH or Swiss ETA2893 \/ SW330.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eNH35, NH36, NH37, NH38, NH39, NH70 and NH71 fit directly. For a Swiss build, the ETA2893 or Sellita SW330 seats on a dedicated gold movement spacer with its own caseback.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eBuilt to dive.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e200m \/ 20 ATM. Screw-down crown and screw-down caseback — both included, both unique to this case.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eBezel, insert \u0026amp; crystal.\u003c\/strong\u003e Selected from the options on this page — pick your rotating (or fixed) bezel, the insert, and your sapphire crystal to suit the build.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e A SKX013-spec chapter ring seats the dial at the correct height. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\" title=\"SKX013-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eDial, hands \u0026amp; movement.\u003c\/strong\u003e The face, hands and engine are chosen separately. Match the dial and hands to your movement (date \/ day-date \/ no-date).\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin-bottom: 0; margin-top: 10px;\"\u003e\u003cem\u003eYour screw-down crown and caseback are already included — they’re unique to this case and aren’t sold elsewhere.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #fff5f5; padding: 18px; border-left: 4px solid #ff2a00; margin-top: 12px;\"\u003e\n\u003cp\u003e\u003cstrong style=\"color: #ff2a00;\"\u003e\u003cspan class=\"glyphicon glyphicon-warning-sign\"\u003e\u003c\/span\u003e Casebacks are NOT interchangeable between NH and ETA2893 \/ SW330\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px; color: #7a1f1f;\"\u003e\u003cem\u003eEach caseback is threaded to a different height to match its movement. Fitting an ETA2893 \/ SW330 caseback onto a case running an NH movement will damage the NH movement. Always match the caseback to your movement.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0; color: #7a1f1f;\"\u003e\u003cem\u003e\u003cstrong\u003eThe ETA2893 and SW330 are expert-level builds.\u003c\/strong\u003e They run a fourth hand and leave roughly 40% less clearance between the hands than an NH caliber, so hand-setting is far less forgiving. Unless you’re a seasoned modder or a certified watchmaker, we’d steer you to the NH route.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!--Start tab labels--\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!--Start tab content--\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 38mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 9.9mm (case body only, without bezel and crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Length (lug-to-lug)\u003c\/strong\u003e 44.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCaseback\u003c\/strong\u003e Screw-down — solid (mirror polished) or see-through sapphire\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw-down, included (unique to this case)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e Seiko NH35, NH36, NH37, NH38, NH39, NH70, NH71 · Swiss ETA2893, Sellita SW330\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm — fits all our SKX013 dials\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMod Parts\u003c\/strong\u003e Fits all our SKX013 aftermarket parts\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eWater Resistant\u003c\/strong\u003e 200m \/ 20 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eThis is a donor dive case body. Choose the bezel, insert, crystal and chapter ring on this page, then add the dial, hands and movement to finish the build.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe case body, your chosen caseback, the screw-down crown (unique to this case), bezel click spring, caseback gasket, crystal gasket and two fat spring bars. For an ETA2893 \/ SW330 build, a gold movement spacer is included with that selection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 5 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eBezel, insert \u0026amp; crystal\u003c\/strong\u003e Selected from the options above on this page — a rotating or fixed bezel, the matching insert, and your sapphire crystal.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e SKX013-spec — seats the dial at the correct height.\u003cbr\u003e\u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\" title=\"SKX013-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial (28.5mm)\u003c\/strong\u003e The face of the watch. Match it to your movement (date \/ day-date \/ no-date).\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e Paired with your dial. Most modders match lume colour across hands and dial.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e Seiko NH for a direct fit, or a Swiss ETA2893 \/ Sellita SW330 on the included gold movement spacer.\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional finishing touches:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDecorated bridge + rotor\u003c\/strong\u003e \u003cem\u003e(only visible with a sapphire caseback)\u003c\/em\u003e — replace the stock NH bridge and rotor with our Côtes de Genève decorated set, viewable through the caseback. Our bridges fit only our rotors (not OEM Seiko rotors), so they’re chosen as a pair. \u003cem\u003eRecommended for experienced modders only.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Case Body\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Bezel Click Spring\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Caseback (solid or sapphire, per selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Caseback Gasket\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Crown\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Crystal Gasket\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e2x Fat Spring Bars\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Gold Movement Spacer (only if an ETA2893 \/ SW330 movement is selected)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eBezel, bezel insert, crystal, chapter ring, dial, hands and movement are selected separately to complete your build.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\" href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"NH \/ Sapphire","offer_id":36010749427875,"sku":"skx013-sub-case-38-nh-sap-cbk","price":185.0,"currency_code":"SGD","in_stock":false},{"title":"NH \/ Solid","offer_id":36010749362339,"sku":"skx013-sub-case-38-nh-sld-cbk","price":160.0,"currency_code":"SGD","in_stock":false},{"title":"NH \/ Sapphire Caseback Only","offer_id":36287640371363,"sku":"nh-sap-cb","price":45.0,"currency_code":"SGD","in_stock":false},{"title":"NH \/ Solid Caseback ONLY","offer_id":36287632801955,"sku":"nh-solid-cb","price":20.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2893\/SW330 (GMT) \/ Sapphire","offer_id":36010749493411,"sku":"skx013-sub-case-38-sw-sap-cbk","price":185.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2893\/SW330 (GMT) \/ Sapphire Caseback + Spacer ONLY","offer_id":36051080118435,"sku":"sw330-sap-cb-dhs","price":65.0,"currency_code":"SGD","in_stock":false},{"title":"NH \u0026 ETA2893\/SW330 (GMT) \/ Sapphire","offer_id":36018692522147,"sku":"skx013-sub-case-38-nh-sw-sap-cbk","price":225.0,"currency_code":"SGD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/products\/Diver-Watch-Case-38mm-SKX013Submariner-Edition-Fits-NH-GMT-Movements-NH-Sapphire-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1739733448"},{"product_id":"diver-watch-case-42mm-skx007-submariner-edition-fits-nh-gmt-movements","title":"Diver Watch Case - 42mm - SKX007\/Submariner Edition (Fits NH \u0026 GMT Movements)","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe SKX Diver at 42mm — Seiko NH and Swiss Movements in One Case.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe Diver Watch Case 42mm is our SKX007-spec dive case, engineered to take two very different movements: the full range of Seiko NH calibers, and high-end Swiss movements — the ETA2893 and Sellita SW330. One case body, two build routes.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eIt keeps the submariner-style crown guard and SKX silhouette modders know, and it fits every one of our SKX007 mod parts — chapter rings and aftermarket parts. The screw-down crown and caseback are unique to this case and come included.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eSupplied as a donor case body and rated to 200m, so you choose the bezel, insert, crystal and chapter ring that suit your build.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eTwo movement families, one case body.\u003c\/strong\u003e\u003cbr\u003eRun a Seiko NH build, or step up to the Swiss ETA2893 or Sellita SW330 — the matching gold movement spacer and caseback come with that selection. Few aftermarket cases take both.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eSKX007 proportions, 22mm lugs.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eDiameter 42mm, lug-to-lug 45.5mm, 22mm lugs. Full-size SKX007 presence with a submariner-style crown guard.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFits every SKX007 mod part we make.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eOur SKX007 chapter rings and aftermarket parts fit as tested, alongside our 28.5mm dials and hands. Tested on our own parts.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eSeiko NH or Swiss ETA2893 \/ SW330.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eNH35, NH36, NH37, NH38, NH39, NH70 and NH71 fit directly. For a Swiss build, the ETA2893 or Sellita SW330 seats on a dedicated gold movement spacer with its own caseback.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eBuilt to dive.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e200m \/ 20 ATM. Screw-down crown and screw-down caseback — both included, both unique to this case.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eBezel, insert \u0026amp; crystal.\u003c\/strong\u003e Selected from the options on this page — pick your rotating (or fixed) bezel, the insert, and your sapphire crystal to suit the build.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e A SKX007-spec chapter ring seats the dial at the correct height. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx007\" target=\"_blank\" title=\"SKX007-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eDial, hands \u0026amp; movement.\u003c\/strong\u003e The face, hands and engine are chosen separately. Match the dial and hands to your movement (date \/ day-date \/ no-date).\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin-bottom: 0; margin-top: 10px;\"\u003e\u003cem\u003eYour screw-down crown and caseback are already included — they’re unique to this case and aren’t sold elsewhere.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #fff5f5; padding: 18px; border-left: 4px solid #ff2a00; margin-top: 12px;\"\u003e\n\u003cp\u003e\u003cstrong style=\"color: #ff2a00;\"\u003e\u003cspan class=\"glyphicon glyphicon-warning-sign\"\u003e\u003c\/span\u003e Casebacks are NOT interchangeable between NH and ETA2893 \/ SW330\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px; color: #7a1f1f;\"\u003e\u003cem\u003eEach caseback is threaded to a different height to match its movement. Fitting an ETA2893 \/ SW330 caseback onto a case running an NH movement will damage the NH movement. Always match the caseback to your movement.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0; color: #7a1f1f;\"\u003e\u003cem\u003e\u003cstrong\u003eThe ETA2893 and SW330 are expert-level builds.\u003c\/strong\u003e They run a fourth hand and leave roughly 40% less clearance between the hands than an NH caliber, so hand-setting is far less forgiving. Unless you’re a seasoned modder or a certified watchmaker, we’d steer you to the NH route.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!--Start tab labels--\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!--Start tab content--\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 42mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 10.3mm (case body only, without bezel and crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Length (lug-to-lug)\u003c\/strong\u003e 45.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 22mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCaseback\u003c\/strong\u003e Screw-down — solid (mirror polished) or see-through sapphire\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw-down, included (unique to this case)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e Seiko NH35, NH36, NH37, NH38, NH39, NH70, NH71 · Swiss ETA2893, Sellita SW330\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm — fits all our SKX007 dials\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX007-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMod Parts\u003c\/strong\u003e Fits all our SKX007 aftermarket parts\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eWater Resistant\u003c\/strong\u003e 200m \/ 20 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eThis is a donor dive case body. Choose the bezel, insert, crystal and chapter ring on this page, then add the dial, hands and movement to finish the build.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe case body, your chosen caseback, the screw-down crown (unique to this case), bezel click spring, caseback gasket, crystal gasket and two fat spring bars. For an ETA2893 \/ SW330 build, a gold movement spacer is included with that selection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 5 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eBezel, insert \u0026amp; crystal\u003c\/strong\u003e Selected from the options above on this page — a rotating or fixed bezel, the matching insert, and your sapphire crystal.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e SKX007-spec — seats the dial at the correct height.\u003cbr\u003e\u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx007\" target=\"_blank\" title=\"SKX007-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial (28.5mm)\u003c\/strong\u003e The face of the watch. Match it to your movement (date \/ day-date \/ no-date).\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e Paired with your dial. Most modders match lume colour across hands and dial.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e Seiko NH for a direct fit, or a Swiss ETA2893 \/ Sellita SW330 on the included gold movement spacer.\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional finishing touches:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDecorated bridge + rotor\u003c\/strong\u003e \u003cem\u003e(only visible with a sapphire caseback)\u003c\/em\u003e — replace the stock NH bridge and rotor with our Côtes de Genève decorated set, viewable through the caseback. Our bridges fit only our rotors (not OEM Seiko rotors), so they’re chosen as a pair. \u003cem\u003eRecommended for experienced modders only.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Case Body\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Bezel Click Spring\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Caseback (solid or sapphire, per selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Caseback Gasket\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Crown\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Crystal Gasket\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e2x Fat Spring Bars\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Gold Movement Spacer (only if an ETA2893 \/ SW330 movement is selected)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eBezel, bezel insert, crystal, chapter ring, dial, hands and movement are selected separately to complete your build.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\" href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"NH \/ Sapphire","offer_id":36689072783523,"sku":"skx007-sub-case-42-nh-sap-cbk","price":185.0,"currency_code":"SGD","in_stock":true},{"title":"NH \/ Solid","offer_id":36689072816291,"sku":"skx007-sub-case-42-nh-sld-cbk","price":160.0,"currency_code":"SGD","in_stock":true},{"title":"NH \/ Sapphire Caseback Only","offer_id":36689072849059,"sku":"nh-sap-cb","price":45.0,"currency_code":"SGD","in_stock":true},{"title":"NH \/ Solid Caseback ONLY","offer_id":36689072881827,"sku":"nh-solid-cb","price":20.0,"currency_code":"SGD","in_stock":true},{"title":"ETA2893\/SW330 (GMT) \/ Sapphire","offer_id":36689072914595,"sku":"skx007-sub-case-42-sw-sap-cbk","price":185.0,"currency_code":"SGD","in_stock":true},{"title":"ETA2893\/SW330 (GMT) \/ Sapphire Caseback + Spacer ONLY","offer_id":36689072947363,"sku":"sw330-sap-cb-dhs","price":65.0,"currency_code":"SGD","in_stock":true},{"title":"NH \u0026 ETA2893\/SW330 (GMT) \/ Sapphire","offer_id":36689072980131,"sku":"skx007-sub-case-42-nh-sw-sap-cbk","price":225.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/products\/Diver-Watch-Case-42mm-SKX007Submariner-Edition-Fits-NH-GMT-Movements-NH-Sapphire-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1739733463"},{"product_id":"explorer-watch-case-v2-39mm","title":"Explorer Watch Case - 39mm","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe 39mm Explorer — Sapphire, Crown and Bracelet, Built to Finish a Build.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA classic Explorer that has stood the test of time — the 39mm Explorer Watch Case is an easy, satisfying way to finish a build. It comes complete with a clear-AR sapphire, a screw-down crown, and the option of a solid brushed Oyster bracelet.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe Oyster clasp includes micro-adjustment, so you can fine-tune the fit without adding or removing links. It also takes Swiss ETA and Sellita movements with the right spacer and caseback.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eDesigned to fit all our 28.5mm dials on the grey dial holding spacer — no chapter ring needed. Tested to 200m.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eSapphire, crown and bracelet — the most complete Explorer.\u003c\/strong\u003e\u003cbr\u003eCrystal pressed, crown fitted, Oyster bracelet ready. Add a dial, hands and movement and you have a finished watch. No chapter ring required.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eClassic 39mm Explorer.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eDiameter 39mm, case length 46.5mm, 20mm lugs. The proportions that make the Explorer such a reliable finisher.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eOyster bracelet with micro-adjust.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eOptional solid brushed Oyster bracelet, 20mm tapering to 18mm, with a micro-adjustment clasp — no link removal needed to dial in the fit.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eSeats dials on the holding spacer.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eNo chapter ring required — our 28.5mm dials seat on the grey dial holding spacer. Simple to build.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eSwiss-capable, sapphire and crown included.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eFits NH35\/36\/38 plus Swiss ETA2824, ETA2893 and Sellita SW200, SW260, SW330. Flat sapphire (29.5 × 1.5mm, clear AR) and screw-down crown included. Rated to 200m.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 10px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCaseback\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eTotal Thickness\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eWater Resistance\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eSolid\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e11.5mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e200m \/ 20 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eSlimmest profile, fully closed back\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eSapphire (exhibition)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e12mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e200m \/ 20 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eShow off a decorated movement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eThe caseback also matches your movement family — Seiko NH, Swiss ETA2824\/2893, or Sellita SW200\/260\/330 — and ships with the matching movement spacer for your selection.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eDial, hands \u0026amp; movement.\u003c\/strong\u003e Chosen separately. Match the dial and hands to your movement (date \/ day-date \/ no-date).\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin-bottom: 0; margin-top: 10px;\"\u003e\u003cem\u003eSapphire crystal and screw-down crown are included; the Oyster bracelet is included when selected. No chapter ring needed — dials seat on the grey dial holding spacer.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!--Start tab labels--\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!--Start tab content--\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 39mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 11.5mm (solid caseback) \/ 12mm (sapphire caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Length\u003c\/strong\u003e 46.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelet Width\u003c\/strong\u003e 20mm tapering to 18mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Flat sapphire, clear anti-reflective coating (pre-installed)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 29.5mm × 1.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCaseback\u003c\/strong\u003e Screw-down — mirror polished or sapphire\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw-down, included\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e Seiko NH35, NH36, NH38 · Swiss ETA2824, ETA2893 · Sellita SW200, SW260, SW330\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm — fits all our dials (seats on the grey dial holding spacer; no chapter ring)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelet\u003c\/strong\u003e Solid brushed Oyster, 20→18mm, micro-adjust clasp (per selection)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eWater Resistant\u003c\/strong\u003e 200m \/ 20 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eOne of the simplest builds we offer: sapphire, crown and (optionally) the Oyster bracelet are already handled. No chapter ring needed — just add a dial, hands and movement.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe watch case with flat sapphire crystal and screw-down crown installed, your selected Oyster bracelet (if chosen), and your selected NH caseback (plus the matching Swiss spacers\/casebacks if you choose an ETA or Sellita movement).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 3 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial (28.5mm)\u003c\/strong\u003e Seats on the grey dial holding spacer — no chapter ring required. Match it to your movement.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e Paired with your dial.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e NH35\/36\/38, or a Swiss ETA\/Sellita with the matching caseback.\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional finishing touches:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDecorated bridge + rotor\u003c\/strong\u003e \u003cem\u003e(only visible with a sapphire caseback)\u003c\/em\u003e — replace the stock NH bridge and rotor with our Côtes de Genève decorated set, viewable through the caseback. Our bridges fit only our rotors (not OEM Seiko rotors), so they’re chosen as a pair. \u003cem\u003eRecommended for experienced modders only.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTick the \u003cstrong\u003eAssemble Watch\u003c\/strong\u003e option above and we’ll handle the full build in our Singapore workshop — case fitting, movement seating, crown alignment, caseback press and a function check.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches require \u003cstrong\u003e2–5 business days\u003c\/strong\u003e of workshop time before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case (sapphire crystal and screw-down crown installed)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Oyster Bracelet (per selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x NH Caseback (per selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2824\/SW200\/SW260 Movement Spacer (only if that movement is selected)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2893\/SW330 Movement Spacer (only if that movement is selected)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2824\/SW200\/SW260 Sapphire Caseback (only if that movement is selected)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2893\/SW330 Sapphire Caseback (only if that movement is selected)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eDial, hands and movement are selected separately to complete your build.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\" href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Explorer Case \/ Brushed Oyster \/ NH [Solid]","offer_id":42257460625644,"sku":"ECv2.39\/BO\/NH.Solid","price":229.0,"currency_code":"SGD","in_stock":true},{"title":"Explorer Case \/ Brushed Oyster \/ NH [Sapphire]","offer_id":41037455589539,"sku":"ECv2.39\/BO\/NH.Sapphire","price":249.0,"currency_code":"SGD","in_stock":true},{"title":"Explorer Case \/ Brushed Oyster \/ ETA2824\/SW200 [Sapphire]","offer_id":41037455622307,"sku":"ECv2.39\/BO\/ETA2824","price":249.0,"currency_code":"SGD","in_stock":true},{"title":"Explorer Case \/ Brushed Oyster \/ ETA2893\/SW330 (GMT) [Sapphire]","offer_id":41037455655075,"sku":"ECv2.39\/BO\/GMT","price":249.0,"currency_code":"SGD","in_stock":true},{"title":"Explorer Case \/ Brushed Oyster \/ Fits All [Sapphire]","offer_id":41037468696739,"sku":"ECv2.39\/BO\/FitsAll","price":329.0,"currency_code":"SGD","in_stock":true},{"title":"Explorer Case \/ No Bracelet Required \/ NH [Solid]","offer_id":42257460658412,"sku":"ECv2.39\/NH.Solid","price":145.0,"currency_code":"SGD","in_stock":true},{"title":"Explorer Case \/ No Bracelet Required \/ NH [Sapphire]","offer_id":41037455720611,"sku":"ECv2.39\/NH.Sapphire","price":165.0,"currency_code":"SGD","in_stock":true},{"title":"Explorer Case \/ No Bracelet Required \/ ETA2824\/SW200 [Sapphire]","offer_id":41037455753379,"sku":"ECv2.39\/ETA2824","price":165.0,"currency_code":"SGD","in_stock":true},{"title":"Explorer Case \/ No Bracelet Required \/ ETA2893\/SW330 (GMT) [Sapphire]","offer_id":41037455786147,"sku":"ECv2.39\/GMT","price":165.0,"currency_code":"SGD","in_stock":true},{"title":"Explorer Case \/ No Bracelet Required \/ Fits All [Sapphire]","offer_id":41037526040739,"sku":"ECv2.39\/FitsAll","price":249.0,"currency_code":"SGD","in_stock":true},{"title":"No Case Required \/ Brushed Oyster \/ No Caseback Required","offer_id":41037455949987,"sku":"ECv2-B.Bracelet","price":99.0,"currency_code":"SGD","in_stock":true},{"title":"No Case Required \/ No Bracelet Required \/ NH [Solid]","offer_id":42257460691180,"sku":"CB.NH.Solid","price":25.0,"currency_code":"SGD","in_stock":true},{"title":"No Case Required \/ No Bracelet Required \/ NH [Sapphire]","offer_id":41037455982755,"sku":"CB.NH.Sapphire","price":45.0,"currency_code":"SGD","in_stock":true},{"title":"No Case Required \/ No Bracelet Required \/ ETA2824\/SW200 [Sapphire]","offer_id":41037456015523,"sku":"CB.ETA2824","price":55.0,"currency_code":"SGD","in_stock":true},{"title":"No Case Required \/ No Bracelet Required \/ ETA2893\/SW330 (GMT) [Sapphire]","offer_id":41037456048291,"sku":"CB.GMT","price":55.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/products\/Explorer-Watch-Case-39mm-Explorer-Case-Brushed-Oyster-NH-Solid-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1641237374"},{"product_id":"seikonaut-watch-case-36mm","title":"Seikonaut Watch Case - 36mm","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe First Seikonaut at 36mm — A Complete Integrated-Bracelet Case.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eFor those who like it small: the first-ever Seikonaut at 36mm. With its side notches it reaches 40.5mm, and 43mm including the crown — so a 36mm case wears with closer to a 40mm presence. Small, but a statement.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe sapphire crystal is coated with clear anti-reflective on both surfaces — double-sided AR — for an almost crystal-less view of your dial and hands. It comes as a complete case with an integrated bracelet designed specifically for it.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eEverything but the dial, hands and movement is included. Tested to 200m.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eA complete case — sapphire, crown, caseback and bracelet, all in.\u003c\/strong\u003e\u003cbr\u003eJust add a dial, hands and movement. The integrated bracelet and double-sided AR sapphire are built in; there’s nothing to press or fit.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003e36mm that wears like 40.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eDiameter 36mm — 40.5mm across the side notches, 43mm including the crown. A compact case with real wrist presence. Fits wrists from 13–20cm.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eDouble-sided AR sapphire.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eBoth surfaces of the flat sapphire carry clear anti-reflective coating (28 × 1.5mm), for a clarity that makes the crystal nearly disappear over your dial.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eIntegrated bracelet, built in.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eA bracelet designed specifically for this case, with a 14.1mm integrated lug. Additional links can be supplied for larger wrists.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eComplete and sealed.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eShips with sapphire, a screw-down crown, a clear sapphire screw-down caseback and the bracelet — all included. Rated to 200m.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eDial, hands \u0026amp; movement.\u003c\/strong\u003e The only parts chosen separately. Match the dial and hands to your NH movement (date \/ day-date \/ no-date).\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin-bottom: 0; margin-top: 10px;\"\u003e\u003cem\u003eEverything else — sapphire crystal, crown, caseback and integrated bracelet — is included. No chapter ring needed; dials seat on the grey dial holding spacer.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!--Start tab labels--\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!--Start tab content--\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 36mm (40.5mm across side notches, 43mm including crown)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 12.2mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 43mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 14.1mm (integrated bracelet)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eFit Wrist\u003c\/strong\u003e 13cm–20cm (additional links available)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Flat sapphire, double-sided clear anti-reflective coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 28mm × 1.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCaseback\u003c\/strong\u003e Screw-down, clear sapphire\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw-down, included\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e Seiko NH35, NH36, NH37, NH38, NH39, NH70, NH71, NH72 (not NH34 \/ GMT)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm — fits all our dials (seats on the grey dial holding spacer)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelet\u003c\/strong\u003e Integrated, included\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eWater Resistant\u003c\/strong\u003e 200m \/ 20 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eThe simplest build we make: the case is complete with crystal, crown, caseback and integrated bracelet. Add only a dial, hands and movement.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe complete watch case — flat double-sided AR sapphire, screw-down crown, clear sapphire screw-down caseback, and the integrated bracelet.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 3 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial (28.5mm)\u003c\/strong\u003e Seats on the grey dial holding spacer — no chapter ring required. Match it to your NH movement.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e Paired with your dial.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e Seiko NH35\/36\/38 (and NH70\/71\/72). Not NH34 \/ GMT compatible.\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional finishing touches:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDecorated bridge + rotor\u003c\/strong\u003e \u003cem\u003e(visible through the clear sapphire caseback)\u003c\/em\u003e — replace the stock NH bridge and rotor with our Côtes de Genève set. Our bridges fit only our rotors (not OEM Seiko rotors), so they’re chosen as a pair. \u003cem\u003eRecommended for experienced modders only.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTick the \u003cstrong\u003eAssemble Watch\u003c\/strong\u003e option above and we’ll handle the full build in our Singapore workshop — case fitting, movement seating, crown alignment, caseback press and a function check.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches require \u003cstrong\u003e2–5 business days\u003c\/strong\u003e of workshop time before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case (includes sapphire crystal, screw-down crown, clear sapphire caseback and integrated bracelet)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eOnly the dial, hands and movement are selected separately to complete your build.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\" href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Default Title","offer_id":43071320981740,"sku":"SNC36SS","price":239.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/products\/Seikonaut-Watch-Case-36mm-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1658776528"},{"product_id":"gs-watch-case-36mm-v2","title":"GS Watch Case - 36mm v2","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe GS Dress Case. Classic 36mm. Slim by Design.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe 36mm cut of our GS dress case — the same faceted, dial-forward language in the classic mid-size that suits the most wrists.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA selectable caseback fits \u003cstrong\u003eSeiko NH and Swiss ETA\/Sellita movements\u003c\/strong\u003e (ETA2824, ETA2893, SW200, SW260, SW330); the matching spacer and caseback ship with your choice.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eSapphire crystal pre-installed and a screw-down crown fitted. Designed for our \u003cstrong\u003e28.5mm dials\u003c\/strong\u003e, an SKX013 chapter ring, and NH movements on the grey dial holding spacer.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eKept deliberately slim, this case is \u003cstrong\u003enot NH34 GMT-ready\u003c\/strong\u003e — there isn't the height clearance for the NH34's extra 24-hour hand. Run it with NH35, NH36 or NH38, or a Swiss ETA\/Sellita movement.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFive movements, one case.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eSeiko NH35\/36\/38, Swiss ETA2824 and ETA2893, Sellita SW200, SW260 and SW330 — selected by caseback, with the spacer and caseback supplied. (Not NH34 — see below.)\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eSapphire, already in.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eA double-domed sapphire with anti-reflective coating, pressed and sealed in our workshop — and a screw-down crown fitted.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eClassic 36, kept slim.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eCase 36mm, lug-to-lug 43mm, 20mm lugs. The dress mid-size, held thin on purpose.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFits the 28.5mm dial ecosystem.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e28.5mm dials, an SKX013 chapter ring, NH-compatible hands. Pairs with our 20mm bracelets and straps.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cp style=\"text-align: center; margin-bottom: 6px; margin-top: 6px;\"\u003e\u003cstrong\u003eThe GS case family — find your size\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 6px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCase\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eDiameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eLug-to-Lug\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCharacter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/gs-watch-case-39mm-v2-nh34-ready\" target=\"_blank\"\u003e\u003cstrong\u003eGS Watch Case 39mm v2\u003c\/strong\u003e \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e39mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e46mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eFaceted dress case, largest\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eGS Watch Case 36mm v2\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · YOU'RE VIEWING THIS\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e43mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eFaceted dress case, classic mid-size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/gs-diver-watch-case-36mm-nh34-ready\" target=\"_blank\"\u003e\u003cstrong\u003eGS Diver 36mm\u003c\/strong\u003e \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e43mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eDive-styled GS, 200m bezel look\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eAll three are the same GS platform — 316L steel, 200m \/ 20 ATM, a double-domed sapphire pre-installed, 28.5mm dials, an SKX013 chapter ring, and a 20mm bracelet or strap. The 39 and the Diver are NH34 GMT-ready; the 36mm dress runs NH35\/36\/38 plus Swiss ETA and Sellita.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — what's in the box, and what's sold separately.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003eThis case ships with the sapphire crystal pre-installed and a screw-down crown fitted. The dial, hands, chapter ring and movement are chosen separately — build it to fit our full \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\" target=\"_blank\"\u003edial range \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case needs an \u003cstrong\u003eSKX013 chapter ring\u003c\/strong\u003e to seat the dial correctly — it is mandatory and never included. It takes both \u003cstrong\u003enormal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, pick an ultra thin chapter ring for clearance; a flat-printed dial works with either. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 36mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 12.8mm (Solid Caseback), 13.3mm (Sapphire Caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 43mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Double Domed Sapphire with Clear Anti-Reflective Coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 29.5mm x 1.5mm x 3mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw down\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e NH35, NH36, NH38, NH72, ETA2824, ETA2893, SW200, SW260, SW330\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets \u0026amp; Straps\u003c\/strong\u003e Lucius Atelier bracelets and 20mm straps\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eWater Resistant\u003c\/strong\u003e 200m \/ 20 ATM (tested)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eThe case ships with the sapphire crystal pressed in and a screw-down crown fitted. You choose the rest below — every part is an \u003cstrong\u003eAdd\u003c\/strong\u003e dropdown on this page — and the caseback you select sets which movement family the case fits.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFour more parts make a complete watch\u003c\/strong\u003e, each a dropdown above, in the order you'd assemble them:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e \u003cem\u003e(required — seats the dial)\u003c\/em\u003e — SKX013-spec; without it the dial sits too low and the hands won't clear. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — match it to your movement: date, day+date, or no-date. \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\" target=\"_blank\"\u003eBrowse dials \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired to your dial; most modders match lume colour across hands and markers. \u003ca href=\"\/collections\/hands\" target=\"_blank\"\u003eBrowse hands \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — a Seiko NH, or a Swiss ETA2824\/2893 or Sellita SW200\/260\/330 (pick the matching caseback above). \u003ca href=\"\/collections\/watch-movements\" target=\"_blank\"\u003eBrowse movements \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional extras\u003c\/strong\u003e (also dropdowns above): a 20mm \u003ca href=\"\/collections\/bracelets\" target=\"_blank\"\u003ebracelet \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e or \u003ca href=\"\/collections\/straps\" target=\"_blank\"\u003eleather strap \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e, and a Côtes de Genève \u003ca href=\"\/collections\/rotors-and-bridges\" target=\"_blank\"\u003edecorated bridge + rotor \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — only visible through a sapphire caseback, and our bridges pair only with our rotors, so pick them together.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnder \u003cstrong\u003eADD\u003c\/strong\u003e, tick \u003cstrong\u003eAssemble Watch (+SGD $100)\u003c\/strong\u003e and we'll do the full build in our Singapore workshop — movement seating, caseback fit, crown alignment, dial and hands, and a final function check.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches need \u003cstrong\u003e2–5 business days\u003c\/strong\u003e of workshop time before they ship.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003ePrefer to build it yourself? See the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for step-by-step tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case (sapphire crystal and screw-down crown installed)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x NH Caseback (depends on selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2824\/SW200\/SW260 Movement Spacer (depends on selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2893\/SW330 Movement Spacer (depends on selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2824\/SW200\/SW260 Sapphire Caseback (depends on selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2893\/SW330 Sapphire Caseback (depends on selection)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"NH [Solid]","offer_id":43287041671404,"sku":"GS36.v2\/NH.Solid","price":145.0,"currency_code":"SGD","in_stock":true},{"title":"NH [Sapphire]","offer_id":43287041704172,"sku":"GS36.v2\/NH.Sapp","price":165.0,"currency_code":"SGD","in_stock":true},{"title":"ETA2824\/SW200 [Sapphire]","offer_id":43287041736940,"sku":"GS36.v2\/ETA2824","price":165.0,"currency_code":"SGD","in_stock":true},{"title":"ETA2893\/SW330 (GMT) [Sapphire]","offer_id":43287041769708,"sku":"GS36.v2\/ETA2893","price":165.0,"currency_code":"SGD","in_stock":true},{"title":"Fits All [Sapphire]","offer_id":43287041802476,"sku":"GS36.v2\/FitsAll","price":249.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/products\/GS-Watch-Case-36mm-v2-NH-Solid-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1663701366"},{"product_id":"explorer-watch-case-36mm-v3","title":"Explorer Watch Case - 36mm v3","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe Explorer 36mm, Third Generation — Sapphire and Crown Included.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe third-generation Explorer Watch Case 36mm refines a classic into one of the cleanest small-case builds we make. The headline change: it now fits an SKX013 chapter ring, widening the modding range considerably.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eIt comes complete with a flat clear-AR sapphire and a screw-down crown — two of the fiddliest parts, handled. It also takes Swiss ETA and Sellita movements with the right spacer and caseback.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eTested to 200m. A chapter ring is required to seat the dial.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eSapphire and crown both included — the hard parts are done.\u003c\/strong\u003e\u003cbr\u003eNo crystal press, no crown fitting. Choose a caseback for your movement, add a chapter ring, dial, hands and movement, and build.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eClean 36mm Explorer lines.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eDiameter 36mm, lug-to-lug 43mm, 20mm lugs. The understated Explorer profile that finishes almost any dial.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eNow fits SKX013 chapter rings.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eThe third-gen change: an SKX013-spec chapter ring is required and seats the dial precisely, widening your dial and hand options.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFive movement families.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eNH35, NH36, NH38 and NH72, plus Swiss ETA2824, ETA2893 and Sellita SW200, SW260, SW330 — set by the caseback you choose. The matching spacer and caseback are supplied.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eSapphire and crown included.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eFlat sapphire, 29.5 × 1.5mm, clear AR, pre-installed — and a screw-down crown fitted. Rated to 200m.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 10px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCaseback\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eTotal Thickness\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eWater Resistance\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eSolid\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e11.5mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e200m \/ 20 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eSlimmest profile, fully closed back\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eSapphire (exhibition)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e12mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e200m \/ 20 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eShow off a decorated movement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eThe caseback also matches your movement family — Seiko NH, Swiss ETA2824\/2893, or Sellita SW200\/260\/330 — and ships with the matching movement spacer for your selection.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring (required).\u003c\/strong\u003e An SKX013-spec chapter ring is mandatory on this case — without it the dial sits too low and the hands won’t clear. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\" title=\"SKX013-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eDial, hands \u0026amp; movement.\u003c\/strong\u003e Chosen separately. Match the dial and hands to your movement.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin-bottom: 0; margin-top: 10px;\"\u003e\u003cem\u003eThe flat sapphire crystal and screw-down crown are both included — no crystal press, no crown fitting.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #fff5f5; padding: 18px; border-left: 4px solid #ff2a00; margin-top: 12px;\"\u003e\n\u003cp\u003e\u003cstrong style=\"color: #ff2a00;\"\u003e\u003cspan class=\"glyphicon glyphicon-warning-sign\"\u003e\u003c\/span\u003e Not NH34-ready\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0; color: #7a1f1f;\"\u003e\u003cem\u003eTo keep this case slim, it doesn’t have the extra height the NH34’s 24-hour hand needs — so it is not NH34 GMT-ready. Run NH35, NH36 or NH38, or a Swiss ETA\/Sellita movement. For a GMT build, see our GMT-ready cases.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!--Start tab labels--\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!--Start tab content--\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 36mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 11.5mm (solid caseback) \/ 12mm (sapphire caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 43mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Flat sapphire, clear anti-reflective coating (pre-installed)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 29.5mm × 1.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw-down, included\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e Seiko NH35, NH36, NH38, NH72 · Swiss ETA2824, ETA2893 · Sellita SW200, SW260, SW330 (not NH34)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm — fits all our dials\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eWater Resistant\u003c\/strong\u003e 200m \/ 20 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eThe case arrives with sapphire and crown already fitted. A chapter ring is required — add it along with your dial, hands and movement to finish.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe watch case with flat sapphire crystal and screw-down crown both installed, plus your selected NH caseback (and the matching Swiss spacers\/casebacks if you choose an ETA or Sellita movement).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 4 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring (required first)\u003c\/strong\u003e SKX013-spec — mandatory on this case; it seats the dial at the correct height.\u003cbr\u003e\u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\" title=\"SKX013-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial (28.5mm)\u003c\/strong\u003e The face of the watch. Match it to your movement.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e Paired with your dial.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e NH35\/36\/38, or a Swiss ETA\/Sellita with the matching caseback. Not NH34-compatible.\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional finishing touches:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDecorated bridge + rotor\u003c\/strong\u003e \u003cem\u003e(only visible with a sapphire caseback)\u003c\/em\u003e — replace the stock NH bridge and rotor with our Côtes de Genève decorated set, viewable through the caseback. Our bridges fit only our rotors (not OEM Seiko rotors), so they’re chosen as a pair. \u003cem\u003eRecommended for experienced modders only.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTick the \u003cstrong\u003eAssemble Watch\u003c\/strong\u003e option above and we’ll handle the full build in our Singapore workshop — case fitting, movement seating, crown alignment, caseback press and a function check.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches require \u003cstrong\u003e2–5 business days\u003c\/strong\u003e of workshop time before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case (sapphire crystal and screw-down crown installed)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x NH Caseback (per selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2824\/SW200\/SW260 Movement Spacer (only if that movement is selected)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2893\/SW330 Movement Spacer (only if that movement is selected)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2824\/SW200\/SW260 Sapphire Caseback (only if that movement is selected)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2893\/SW330 Sapphire Caseback (only if that movement is selected)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eChapter ring, dial, hands and movement are selected separately to complete your build.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\" href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"NH [Solid]","offer_id":43427310272748,"sku":"EC36.v3\/NH.Solid","price":145.0,"currency_code":"SGD","in_stock":true},{"title":"NH [Sapphire]","offer_id":43427310305516,"sku":"EC36.v3\/NH.Sapp","price":165.0,"currency_code":"SGD","in_stock":true},{"title":"ETA2824\/SW200 [Sapphire]","offer_id":43427310338284,"sku":"EC36.v3\/ETA2824","price":165.0,"currency_code":"SGD","in_stock":true},{"title":"ETA2893\/SW330 (GMT) [Sapphire]","offer_id":43427310371052,"sku":"EC36.v3\/ETA2893","price":165.0,"currency_code":"SGD","in_stock":true},{"title":"Fits All [Sapphire]","offer_id":43427310403820,"sku":"EC36.v3\/FitsAll","price":249.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/products\/Explorer-Watch-Case-36mm-v3-NH-Solid-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1744140267"},{"product_id":"datejust-watch-case-36mm","title":"Datejust Watch Case - 36mm","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe Datejust. Fluted Bezel, 36mm. Five Movements, One Case.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA fluted-bezel dress case in the classic date-window idiom, in a true-to-era \u003cstrong\u003e36mm\u003c\/strong\u003e — the Datejust silhouette, ready to build.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eOne case, \u003cstrong\u003efive movement families\u003c\/strong\u003e: Seiko NH, Swiss ETA2824 and ETA2893, Sellita SW200, SW260 and SW330 — chosen by the caseback you select, with spacer and caseback supplied.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eShips with a \u003cstrong\u003eflat sapphire crystal\u003c\/strong\u003e pre-installed and a screw-down crown fitted. Built for our \u003cstrong\u003e28.5mm dials\u003c\/strong\u003e, an SKX013 chapter ring (mandatory), and NH movements on the grey dial holding spacer.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eKept slim, this case is \u003cstrong\u003enot NH34 GMT-ready\u003c\/strong\u003e — there isn't clearance for the 24-hour hand. Run NH35, NH36 or NH38, or a Swiss ETA\/Sellita movement.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFive movements, one case.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eSeiko NH35\/36\/38, Swiss ETA2824 and ETA2893, Sellita SW200, SW260 and SW330 — selected by caseback, with the spacer and caseback supplied. (Not NH34 — see below.)\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFlat sapphire, already in.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eA flat sapphire with anti-reflective coating, pressed and sealed in our workshop — and a screw-down crown fitted. The crisp, low-profile dress look.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eDate-window dress, 36mm.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eCase 36mm, lug-to-lug 43mm, 20mm lugs — the slimmest of the platform at 11.5mm. Fluted bezel, dial-forward.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFits the 28.5mm dial ecosystem.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e28.5mm dials, an SKX013 chapter ring, NH-compatible hands. Pairs with our 20mm bracelets and straps.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — what's in the box, and what's sold separately.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003eThis case ships with the sapphire crystal pre-installed and a screw-down crown fitted. The dial, hands, chapter ring and movement are chosen separately — build it to fit our full \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\" target=\"_blank\"\u003edial range \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case needs an \u003cstrong\u003eSKX013 chapter ring\u003c\/strong\u003e to seat the dial correctly — it is mandatory and never included. It takes both \u003cstrong\u003enormal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, pick an ultra thin chapter ring for clearance; a flat-printed dial works with either. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 36mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 11.5mm (Solid Caseback), 12mm (Sapphire Caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 43mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Flat Sapphire with Clear Anti-Reflective Coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 29.5mm x 1.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw down\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e NH35, NH36, NH38, NH72, ETA2824, ETA2893, SW200, SW260, SW330\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets \u0026amp; Straps\u003c\/strong\u003e Lucius Atelier bracelets and 20mm straps\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eWater Resistant\u003c\/strong\u003e 200m \/ 20 ATM (tested)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eThe case ships with the sapphire crystal pressed in and a screw-down crown fitted. You choose the rest below — every part is an \u003cstrong\u003eAdd\u003c\/strong\u003e dropdown on this page — and the caseback you select sets which movement family the case fits.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFour more parts make a complete watch\u003c\/strong\u003e, each a dropdown above, in the order you'd assemble them:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e \u003cem\u003e(required — seats the dial)\u003c\/em\u003e — SKX013-spec; without it the dial sits too low and the hands won't clear. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — match it to your movement: date, day+date, or no-date. \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\" target=\"_blank\"\u003eBrowse dials \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired to your dial; most modders match lume colour across hands and markers. \u003ca href=\"\/collections\/hands\" target=\"_blank\"\u003eBrowse hands \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — a Seiko NH, or a Swiss ETA2824\/2893 or Sellita SW200\/260\/330 (pick the matching caseback above). \u003ca href=\"\/collections\/watch-movements\" target=\"_blank\"\u003eBrowse movements \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional extras\u003c\/strong\u003e (also dropdowns above): a 20mm \u003ca href=\"\/collections\/bracelets\" target=\"_blank\"\u003ebracelet \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e or \u003ca href=\"\/collections\/straps\" target=\"_blank\"\u003eleather strap \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e, and a Côtes de Genève \u003ca href=\"\/collections\/rotors-and-bridges\" target=\"_blank\"\u003edecorated bridge + rotor \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — only visible through a sapphire caseback, and our bridges pair only with our rotors, so pick them together.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnder \u003cstrong\u003eADD\u003c\/strong\u003e, tick \u003cstrong\u003eAssemble Watch (+SGD $100)\u003c\/strong\u003e and we'll do the full build in our Singapore workshop — movement seating, caseback fit, crown alignment, dial and hands, and a final function check.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches need \u003cstrong\u003e2–5 business days\u003c\/strong\u003e of workshop time before they ship.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003ePrefer to build it yourself? See the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for step-by-step tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case (sapphire crystal and screw-down crown installed)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x NH Caseback (depends on selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2824\/SW200\/SW260 Movement Spacer (depends on selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2893\/SW330 Movement Spacer (depends on selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2824\/SW200\/SW260 Sapphire Caseback (depends on selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2893\/SW330 Sapphire Caseback (depends on selection)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"NH [Solid]","offer_id":43437373882604,"sku":"DJ36\/NH.Solid","price":145.0,"currency_code":"SGD","in_stock":true},{"title":"NH [Sapphire]","offer_id":43437373915372,"sku":"DJ36\/NH.Sapp","price":165.0,"currency_code":"SGD","in_stock":true},{"title":"ETA2824\/SW200 [Sapphire]","offer_id":43437373948140,"sku":"DJ36\/ETA2824","price":165.0,"currency_code":"SGD","in_stock":true},{"title":"ETA2893\/SW330 (GMT) [Sapphire]","offer_id":43437373980908,"sku":"DJ36\/ETA2893","price":165.0,"currency_code":"SGD","in_stock":true},{"title":"Fits All [Sapphire]","offer_id":43437374013676,"sku":"DJ36\/FitsAll","price":249.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/products\/Datejust-Watch-Case-36mm-NH-Solid-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1667502962"},{"product_id":"explorer-ii-watch-case-36mm-nh34-ready","title":"Explorer II Watch Case - 36mm [NH34-Ready]","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eExplorer II, 36mm — Crown Guard, and GMT-Ready.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe Explorer II Watch Case 36mm is our first Explorer with a crown guard — a small, sporty addition that gives the 36mm case a more purposeful stance.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eIt’s GMT NH34-ready, and built to fit our SKX013 crowns and SKX013 chapter rings, opening up the full modding range. It also takes Swiss ETA and Sellita movements with the right spacer and caseback.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe case ships with a flat clear-AR sapphire pre-installed. Tested to 200m.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eSapphire pre-installed — the crystal press is done.\u003c\/strong\u003e\u003cbr\u003eYou’re not pressing a crystal or fighting AR coating. Pick a caseback for your movement family, add a crown, chapter ring, dial, hands and movement, and build.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003e36mm with a crown guard.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eDiameter 36mm, lug-to-lug 43mm, 20mm lugs. The crown guard adds sporty character without inflating the footprint.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eGMT NH34-ready.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eRun the NH34 for a true GMT complication. A GMT-specific dial is required for the NH34 route — those are listed separately.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFive movement families.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eNH34, NH35, NH36, NH38 and NH72, plus Swiss ETA2824, ETA2893 and Sellita SW200, SW260, SW330 — set by the caseback you choose. The matching spacer and caseback are supplied.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFlat sapphire, clear AR.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003ePre-installed flat sapphire crystal, 29.5 × 1.5mm, with clear anti-reflective coating. Rated to 200m.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 10px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCaseback\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eTotal Thickness\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eWater Resistance\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eSolid\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e11.6mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e200m \/ 20 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eSlimmest profile, fully closed back\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eSapphire (exhibition)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e12.1mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e200m \/ 20 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eShow off a decorated movement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eThe caseback also matches your movement family — Seiko NH, Swiss ETA2824\/2893, or Sellita SW200\/260\/330 — and ships with the matching movement spacer for your selection.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eCrown.\u003c\/strong\u003e Choose an SKX013-compatible crown. \u003ca href=\"\/collections\/crowns\" target=\"_blank\" title=\"Compatible crowns\"\u003eBrowse compatible crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e An SKX013-spec chapter ring seats the dial correctly. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\" title=\"SKX013-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eDial, hands \u0026amp; movement.\u003c\/strong\u003e Selected separately. For an NH34 GMT build, use a GMT-specific dial.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin-bottom: 0; margin-top: 10px;\"\u003e\u003cem\u003eThe flat sapphire crystal is already pre-installed — no crystal press required.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!--Start tab labels--\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!--Start tab content--\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 36mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 11.6mm (solid caseback) \/ 12.1mm (sapphire caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 43mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Flat sapphire, clear anti-reflective coating (pre-installed)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 29.5mm × 1.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw-down (sold separately)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e Seiko NH34, NH35, NH36, NH38, NH72 · Swiss ETA2824, ETA2893 · Sellita SW200, SW260, SW330\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm — fits all our dials (seats on the grey dial holding spacer)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrowns\u003c\/strong\u003e SKX013-compatible (sold separately)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eWater Resistant\u003c\/strong\u003e 200m \/ 20 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eThe case arrives with the sapphire crystal pre-installed. Pick a caseback to match your movement, then add a crown, chapter ring, dial, hands and movement to finish.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe watch case with flat sapphire crystal pre-installed, plus your selected NH caseback (and the matching Swiss spacers\/casebacks if you choose an ETA or Sellita movement).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 5 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e SKX013-compatible — selected separately.\u003cbr\u003e\u003ca href=\"\/collections\/crowns\" target=\"_blank\" title=\"Compatible crowns\"\u003eBrowse compatible crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e SKX013-spec — seats the dial at the correct height.\u003cbr\u003e\u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\" title=\"SKX013-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial (28.5mm)\u003c\/strong\u003e Match to your movement. For an NH34 GMT build, use a GMT-specific dial.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e Paired with your dial.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e NH34 for GMT, NH35\/36\/38 standard, or a Swiss ETA\/Sellita with the matching caseback.\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional finishing touches:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDecorated bridge + rotor\u003c\/strong\u003e \u003cem\u003e(only visible with a sapphire caseback)\u003c\/em\u003e — replace the stock NH bridge and rotor with our Côtes de Genève decorated set, viewable through the caseback. Our bridges fit only our rotors (not OEM Seiko rotors), so they’re chosen as a pair. \u003cem\u003eRecommended for experienced modders only.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTick the \u003cstrong\u003eAssemble Watch\u003c\/strong\u003e option above and we’ll handle the full build in our Singapore workshop — case fitting, movement seating, crown alignment, caseback press and a function check.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches require \u003cstrong\u003e2–5 business days\u003c\/strong\u003e of workshop time before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case (sapphire crystal installed)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x NH Caseback (per selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2824\/SW200\/SW260 Movement Spacer (only if that movement is selected)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2893\/SW330 Movement Spacer (only if that movement is selected)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2824\/SW200\/SW260 Sapphire Caseback (only if that movement is selected)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2893\/SW330 Sapphire Caseback (only if that movement is selected)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eCrown, chapter ring, dial, hands and movement are selected separately to complete your build.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\" href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"NH [Solid]","offer_id":43563459150060,"sku":"ECII36\/NH.Solid","price":120.0,"currency_code":"SGD","in_stock":true},{"title":"NH [Sapphire]","offer_id":43563459182828,"sku":"ECII36\/NH.Sapp","price":140.0,"currency_code":"SGD","in_stock":true},{"title":"ETA2824\/SW200 [Sapphire]","offer_id":43563459215596,"sku":"ECII36\/ETA2824","price":140.0,"currency_code":"SGD","in_stock":true},{"title":"ETA2893\/SW330 (GMT) [Sapphire]","offer_id":43563459248364,"sku":"ECII36\/ETA2893","price":140.0,"currency_code":"SGD","in_stock":true},{"title":"Fits All [Sapphire]","offer_id":43563459281132,"sku":"ECII36\/FitsAll","price":224.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/products\/Explorer-II-Watch-Case-36mm-NH34-Ready-NH-Solid-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1673378122"},{"product_id":"gs-diver-watch-case-36mm-nh34-ready","title":"GS Diver Watch Case - 36mm [NH34-Ready]","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe GS Diver. 36mm. Sapphire In, Ready to Spec.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA compact \u003cstrong\u003e36mm\u003c\/strong\u003e dive-styled case in the GS idiom — turned-bezel look, screw-down crown, rated to 200m.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA selectable caseback fits \u003cstrong\u003efive movement families\u003c\/strong\u003e — Seiko NH, Swiss ETA2824 and ETA2893, Sellita SW200, SW260 and SW330 — with the spacer and caseback supplied for your pick. \u003cstrong\u003eNH34 GMT-ready.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eSapphire crystal pre-installed. Designed for our \u003cstrong\u003e28.5mm dials\u003c\/strong\u003e, an SKX013 chapter ring and SKX013 crowns, and NH movements on the grey dial holding spacer.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFive movements, one case.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eSeiko NH, Swiss ETA2824 and ETA2893, Sellita SW200, SW260 and SW330 — chosen by the caseback you pick, with the spacer and caseback supplied. NH34 GMT-ready.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eSapphire, already in.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eA double-domed sapphire with anti-reflective coating, pressed and sealed in our workshop. The crown is chosen separately.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eCompact dive case, 200m.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eCase 36mm, lug-to-lug 43mm, 20mm lugs. Screw-down crown, tested to 200m \/ 20 ATM.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFits the 28.5mm dial ecosystem.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e28.5mm dials, an SKX013 chapter ring, SKX013 crowns, NH-compatible hands. Pairs with our 20mm bracelets and straps.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cp style=\"text-align: center; margin-bottom: 6px; margin-top: 6px;\"\u003e\u003cstrong\u003eThe GS case family — find your size\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 6px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCase\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eDiameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eLug-to-Lug\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCharacter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/gs-watch-case-39mm-v2-nh34-ready\" target=\"_blank\"\u003e\u003cstrong\u003eGS Watch Case 39mm v2\u003c\/strong\u003e \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e39mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e46mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eFaceted dress case, largest\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/gs-watch-case-36mm-v2\" target=\"_blank\"\u003e\u003cstrong\u003eGS Watch Case 36mm v2\u003c\/strong\u003e \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e43mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eFaceted dress case, classic mid-size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eGS Diver 36mm\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · YOU'RE VIEWING THIS\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e43mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eDive-styled GS, 200m bezel look\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eAll three are the same GS platform — 316L steel, 200m \/ 20 ATM, a double-domed sapphire pre-installed, 28.5mm dials, an SKX013 chapter ring, and a 20mm bracelet or strap. The 39 and the Diver are NH34 GMT-ready; the 36mm dress runs NH35\/36\/38 plus Swiss ETA and Sellita.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — what's in the box, and what's sold separately.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003eThis case ships with the sapphire crystal pre-installed. The dial, hands, chapter ring and movement are chosen separately — build it to fit our full \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\" target=\"_blank\"\u003edial range \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case needs an \u003cstrong\u003eSKX013 chapter ring\u003c\/strong\u003e to seat the dial correctly — it is mandatory and never included. It takes both \u003cstrong\u003enormal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, pick an ultra thin chapter ring for clearance; a flat-printed dial works with either. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eCrown.\u003c\/strong\u003e Screw-down, SKX-style — chosen separately. \u003ca href=\"\/collections\/crowns\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 36mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 12.5mm (Solid Caseback), 13mm (Sapphire Caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 43mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Double Domed Sapphire with Clear Anti-Reflective Coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 29.5mm x 1.5mm x 3mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw down\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e NH34, NH35, NH36, NH38, NH72, ETA2824, ETA2893, SW200, SW260, SW330\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrowns\u003c\/strong\u003e SKX-style (sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets \u0026amp; Straps\u003c\/strong\u003e Lucius Atelier bracelets and 20mm straps\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eWater Resistant\u003c\/strong\u003e 200m \/ 20 ATM (tested)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eThe case ships with the sapphire crystal pressed in. You choose the rest below — every part is an \u003cstrong\u003eAdd\u003c\/strong\u003e dropdown on this page — and the caseback you select sets which movement family the case fits.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFive more parts make a complete watch\u003c\/strong\u003e, each a dropdown above, in the order you'd assemble them:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e \u003cem\u003e(required)\u003c\/em\u003e — screw-down, SKX-style. \u003ca href=\"\/collections\/crowns\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e \u003cem\u003e(required — seats the dial)\u003c\/em\u003e — SKX013-spec; without it the dial sits too low and the hands won't clear. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — match it to your movement: date, day+date, or no-date. \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\" target=\"_blank\"\u003eBrowse dials \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired to your dial; most modders match lume colour across hands and markers. \u003ca href=\"\/collections\/hands\" target=\"_blank\"\u003eBrowse hands \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — a Seiko NH, or a Swiss ETA2824\/2893 or Sellita SW200\/260\/330 (pick the matching caseback above). \u003ca href=\"\/collections\/watch-movements\" target=\"_blank\"\u003eBrowse movements \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eBuilding an NH34 GMT?\u003c\/strong\u003e Add a \u003ca href=\"\/collections\/hands\/gmt-nh34\" target=\"_blank\"\u003eGMT 24H hand \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e and a \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\/gmt-nh34\" target=\"_blank\"\u003eGMT \/ NH34-specific dial \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — the 24-hour hand is the one optional extra.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptional extras\u003c\/strong\u003e (also dropdowns above): a 20mm \u003ca href=\"\/collections\/bracelets\" target=\"_blank\"\u003ebracelet \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e or \u003ca href=\"\/collections\/straps\" target=\"_blank\"\u003eleather strap \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e, and a Côtes de Genève \u003ca href=\"\/collections\/rotors-and-bridges\" target=\"_blank\"\u003edecorated bridge + rotor \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — only visible through a sapphire caseback, and our bridges pair only with our rotors, so pick them together.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnder \u003cstrong\u003eADD\u003c\/strong\u003e, tick \u003cstrong\u003eAssemble Watch (+SGD $100)\u003c\/strong\u003e and we'll do the full build in our Singapore workshop — movement seating, caseback fit, crown alignment, dial and hands, and a final function check.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches need \u003cstrong\u003e2–5 business days\u003c\/strong\u003e of workshop time before they ship.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003ePrefer to build it yourself? See the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for step-by-step tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case (sapphire crystal installed)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x NH Caseback (depends on selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2824\/SW200\/SW260 Movement Spacer (depends on selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2893\/SW330 Movement Spacer (depends on selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2824\/SW200\/SW260 Sapphire Caseback (depends on selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2893\/SW330 Sapphire Caseback (depends on selection)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"NH [Solid]","offer_id":43563462525164,"sku":"GSDiver36\/NH.Solid","price":120.0,"currency_code":"SGD","in_stock":true},{"title":"NH [Sapphire]","offer_id":43563462557932,"sku":"GSDiver36\/NH.Sapp","price":140.0,"currency_code":"SGD","in_stock":true},{"title":"ETA2824\/SW200 [Sapphire]","offer_id":43563462590700,"sku":"GSDiver36\/ETA2824","price":140.0,"currency_code":"SGD","in_stock":true},{"title":"ETA2893\/SW330 (GMT) [Sapphire]","offer_id":43563462623468,"sku":"GSDiver36\/ETA2893","price":140.0,"currency_code":"SGD","in_stock":true},{"title":"Fits All [Sapphire]","offer_id":43563462656236,"sku":"GSDiver36\/FitsAll","price":224.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/products\/GS-Diver-Watch-Case-36mm-NH34-Ready-NH-Solid-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1673378160"},{"product_id":"skx013-watch-case-38mm-nh34-ready","title":"SKX013 Watch Case - 38mm [NH34-Ready]","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe Discontinued Diver. Rebuilt at 38mm. Ready to Mod.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eOur ground-up reinterpretation of the discontinued \u003cstrong\u003eSKX013\u003c\/strong\u003e — sized at a wearable \u003cstrong\u003e38mm\u003c\/strong\u003e, with drilled-through lugs for that period-correct, tool-free strap-change character.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eBuilt from the start to take our entire SKX013 mod-parts range, so the final piece is yours to spec. \u003cstrong\u003eNH34 GMT-ready\u003c\/strong\u003e, and compatible with the full NH movement family.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eDesigned to fit all our \u003cstrong\u003e28.5mm dials\u003c\/strong\u003e and original NH movements (which seat on the grey dial holding spacer).\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eWears 38, builds big.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eCase diameter 38mm, lug-to-lug 45.5mm, 20mm lugs. Drop in a bezel insert and it carries real wrist presence for its size. \u003ca href=\"\/blogs\/news\/38mm-watch-looks-smaller-case-proportion-guide\" target=\"_blank\"\u003eSee how a small dive case wears bigger \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eDrilled-through lugs.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eVintage-style drilled lugs — quick, tool-free strap swaps and an honest period look.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eBuilt to dive.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e200m \/ 20 ATM, tested. Screw-down crown. Universal springbars.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFits the whole SKX013 ecosystem.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eBezel, insert, sapphire crystal, chapter ring, crown, dial, hands — all from our SKX013 range. 28.5mm dials; NH movements on the grey dial holding spacer.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cp style=\"text-align: center; margin-bottom: 6px; margin-top: 6px;\"\u003e\u003cstrong\u003eThe SKX013 case family — find your size\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 6px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCase\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eDiameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eLug-to-Lug\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCharacter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eSKX013 38mm\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · YOU'RE VIEWING THIS\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e38mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e45.5mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eOur take on the discontinued SKX013 diver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/skx013-submariner-watch-case-36mm-nh34-ready\" target=\"_blank\"\u003e\u003cstrong\u003eSKX013 Submariner 36mm\u003c\/strong\u003e \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e45.5mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eVintage sub-style skin-diver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/skx013-gs-diver-watch-case-36mm-nh34-ready\" target=\"_blank\"\u003e\u003cstrong\u003eSKX013 GS Diver 36mm\u003c\/strong\u003e \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e44mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eGS-style diver, most compact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eAll three share the same DNA — 316L steel or DLC black, 200m \/ 20 ATM, drilled-through lugs, 28.5mm dials, NH movements, and a 20mm bracelet or strap. What differs is size and silhouette.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px;\"\u003e\u003cem\u003eThis exact case also comes in \u003ca href=\"\/products\/skx013-watch-case-38mm-dlc-black-edition-nh34-ready\" target=\"_blank\"\u003ethe DLC Black Edition \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — this is the case body. The rest is sold separately.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003eThis case ships as a bare body (with click spring and gaskets). The bezel, insert, crystal, caseback, chapter ring, crown, dial, hands and movement are chosen separately — it's built to fit our full \u003ca href=\"\/collections\/seiko-skx013-mod-parts\" target=\"_blank\"\u003eSKX013 parts range \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case needs an \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it the dial sits too low and the hands won't clear. It takes both \u003cstrong\u003enormal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, pick an ultra thin chapter ring for clearance; a flat-printed dial works with either. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eCrown.\u003c\/strong\u003e Screw-down, SKX-style. \u003ca href=\"\/collections\/crowns\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!--Start tab labels--\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!--Start tab content--\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 38mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 9mm (case body only, excluding caseback and crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 45.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLugs\u003c\/strong\u003e Drilled-through\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw down, SKX-style\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSpringbars\u003c\/strong\u003e Universal\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e NH34, NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrowns\u003c\/strong\u003e SKX-style\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets \u0026amp; Straps\u003c\/strong\u003e Lucius Atelier bracelets and 20mm straps\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eWater Resistant\u003c\/strong\u003e 200m \/ 20 ATM (tested)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? You can build the whole watch right here — every part is an \u003cstrong\u003eAdd\u003c\/strong\u003e dropdown on this page. The case ships as a bare body (with the bezel click spring and the crystal \u0026amp; caseback gaskets); you choose the rest and spec it exactly how you like.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTen parts make a complete watch.\u003c\/strong\u003e You've got the case — here are the other nine, each a dropdown above, in the order you'd assemble them:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eBezel\u003c\/strong\u003e — the rotating dive bezel. \u003ca href=\"\/collections\/bezels-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 bezels \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBezel insert\u003c\/strong\u003e — the marked ring that sits inside the bezel. \u003ca href=\"\/collections\/bezel-inserts\/skx013\" target=\"_blank\"\u003eBrowse inserts \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaseback\u003c\/strong\u003e — seals the case; solid, or sapphire to show off a decorated movement. \u003ca href=\"\/collections\/seiko-skx013-mod-parts\" target=\"_blank\"\u003eBrowse SKX013 parts \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e \u003cem\u003e(required — seats the dial)\u003c\/em\u003e — SKX013-spec; without it the dial sits too low and the hands won't clear. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e \u003cem\u003e(required)\u003c\/em\u003e — screw-down, SKX-style. \u003ca href=\"\/collections\/crowns\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e — flat sapphire, pressed into the case. \u003ca href=\"\/collections\/sapphire-crystals-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crystals \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — match it to your movement: date, day+date, or no-date. \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\" target=\"_blank\"\u003eBrowse dials \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired to your dial; most modders match lume colour across hands and markers. \u003ca href=\"\/collections\/hands\" target=\"_blank\"\u003eBrowse hands \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH35 (date), NH36 (day+date), NH38 (no date), or fit your own. \u003ca href=\"\/collections\/watch-movements\" target=\"_blank\"\u003eBrowse NH movements \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eBuilding an NH34 GMT?\u003c\/strong\u003e Add a \u003ca href=\"\/collections\/hands\/gmt-nh34\" target=\"_blank\"\u003eGMT 24H hand \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e (its own dropdown) and a \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\/gmt-nh34\" target=\"_blank\"\u003eGMT \/ NH34-specific dial \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — the 24-hour hand is the one optional extra on top of the ten.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptional extras\u003c\/strong\u003e (also dropdowns above): a 20mm \u003ca href=\"\/collections\/bracelets\" target=\"_blank\"\u003ebracelet \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e or \u003ca href=\"\/collections\/straps\" target=\"_blank\"\u003eleather strap \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e, and a Côtes de Genève \u003ca href=\"\/collections\/rotors-and-bridges\" target=\"_blank\"\u003edecorated bridge + rotor \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — only visible through a sapphire caseback, and our bridges pair only with our rotors, so pick them together.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnder \u003cstrong\u003eADD\u003c\/strong\u003e, tick \u003cstrong\u003eAssemble Watch (+SGD $100)\u003c\/strong\u003e and we'll do the full build in our Singapore workshop — crystal press, bezel and insert fit, movement seating, crown alignment, caseback press, and a final function check.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches need \u003cstrong\u003e2–5 business days\u003c\/strong\u003e of workshop time before they ship.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003ePrefer to build it yourself? See the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for step-by-step tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Bezel Click Spring\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Crystal Gasket\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Caseback Gasket\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eSpringbars are included with our bracelets and straps.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Default Title","offer_id":43604225163500,"sku":"SKX013-WC38","price":88.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/products\/SKX013-Watch-Case-38mm-NH34-Ready-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1673378221"},{"product_id":"skx013-submariner-watch-case-36mm-nh34-ready","title":"SKX013 Submariner Watch Case - 36mm [NH34-Ready]","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe Smallest Sub-Style Diver. 36mm. Ready to Mod.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA ground-up take on the definitive 1960s skin-diver silhouette — drilled-through lugs and gently pointed crown guards, in a rare, compact \u003cstrong\u003e36mm\u003c\/strong\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eOne of the smallest sub-style dive cases on the market. Add a bezel insert and it wears far bigger than the numbers suggest. \u003cstrong\u003eNH34 GMT-ready\u003c\/strong\u003e and built to fit our full SKX013 parts range.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eDesigned for all our \u003cstrong\u003e28.5mm dials\u003c\/strong\u003e and original NH movements (grey dial holding spacer). Pairs especially well with a 7mm big crown.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eSmall case, big wrist presence.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eCase diameter 36mm, lug-to-lug 45.5mm, 20mm lugs. With an insert fitted it punches well above its size.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eVintage dive DNA.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eDrilled-through lugs and slightly pointed crown guards — faithful to the era's tool divers.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eBuilt to dive.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e200m \/ 20 ATM, tested. Screw-down crown — we recommend a 7mm big crown for grip.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFits the whole SKX013 ecosystem.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eBezel, insert, sapphire crystal, chapter ring, crown, dial, hands — all from our SKX013 range. 28.5mm dials; NH movements on the grey dial holding spacer.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cp style=\"text-align: center; margin-bottom: 6px; margin-top: 6px;\"\u003e\u003cstrong\u003eThe SKX013 case family — find your size\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 6px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCase\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eDiameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eLug-to-Lug\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCharacter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/skx013-watch-case-38mm-nh34-ready\" target=\"_blank\"\u003e\u003cstrong\u003eSKX013 38mm\u003c\/strong\u003e \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e38mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e45.5mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eOur take on the discontinued SKX013 diver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eSKX013 Submariner 36mm\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · YOU'RE VIEWING THIS\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e45.5mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eVintage sub-style skin-diver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/skx013-gs-diver-watch-case-36mm-nh34-ready\" target=\"_blank\"\u003e\u003cstrong\u003eSKX013 GS Diver 36mm\u003c\/strong\u003e \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e44mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eGS-style diver, most compact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eAll three share the same DNA — 316L steel or DLC black, 200m \/ 20 ATM, drilled-through lugs, 28.5mm dials, NH movements, and a 20mm bracelet or strap. What differs is size and silhouette.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px;\"\u003e\u003cem\u003eThis exact case also comes in \u003ca href=\"\/products\/skx013-submariner-watch-case-36mm-dlc-black-edition-nh34-ready\" target=\"_blank\"\u003ethe DLC Black Edition \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — this is the case body. The rest is sold separately.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003eThis case ships as a bare body (with click spring and gaskets). The bezel, insert, crystal, caseback, chapter ring, crown, dial, hands and movement are chosen separately — it's built to fit our full \u003ca href=\"\/collections\/seiko-skx013-mod-parts\" target=\"_blank\"\u003eSKX013 parts range \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case needs an \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it the dial sits too low and the hands won't clear. It takes both \u003cstrong\u003enormal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, pick an ultra thin chapter ring for clearance; a flat-printed dial works with either. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eCrown.\u003c\/strong\u003e Screw-down, SKX-style — we recommend a 7mm big crown on this case for grip. \u003ca href=\"\/collections\/crowns\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!--Start tab labels--\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!--Start tab content--\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 36mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 9mm (case body only, excluding caseback and crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 45.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLugs\u003c\/strong\u003e Drilled-through\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw down, SKX-style\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSpringbars\u003c\/strong\u003e Universal\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e NH34, NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrowns\u003c\/strong\u003e SKX-style\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets \u0026amp; Straps\u003c\/strong\u003e Lucius Atelier bracelets and 20mm straps\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eWater Resistant\u003c\/strong\u003e 200m \/ 20 ATM (tested)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? You can build the whole watch right here — every part is an \u003cstrong\u003eAdd\u003c\/strong\u003e dropdown on this page. The case ships as a bare body (with the bezel click spring and the crystal \u0026amp; caseback gaskets); you choose the rest and spec it exactly how you like.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTen parts make a complete watch.\u003c\/strong\u003e You've got the case — here are the other nine, each a dropdown above, in the order you'd assemble them:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eBezel\u003c\/strong\u003e — the rotating dive bezel. \u003ca href=\"\/collections\/bezels-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 bezels \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBezel insert\u003c\/strong\u003e — the marked ring that sits inside the bezel. \u003ca href=\"\/collections\/bezel-inserts\/skx013\" target=\"_blank\"\u003eBrowse inserts \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaseback\u003c\/strong\u003e — seals the case; solid, or sapphire to show off a decorated movement. \u003ca href=\"\/collections\/seiko-skx013-mod-parts\" target=\"_blank\"\u003eBrowse SKX013 parts \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e \u003cem\u003e(required — seats the dial)\u003c\/em\u003e — SKX013-spec; without it the dial sits too low and the hands won't clear. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e \u003cem\u003e(required)\u003c\/em\u003e — screw-down, SKX-style. We suggest a 7mm big crown on this case for a better grip. \u003ca href=\"\/collections\/crowns\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e — flat sapphire, pressed into the case. \u003ca href=\"\/collections\/sapphire-crystals-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crystals \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — match it to your movement: date, day+date, or no-date. \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\" target=\"_blank\"\u003eBrowse dials \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired to your dial; most modders match lume colour across hands and markers. \u003ca href=\"\/collections\/hands\" target=\"_blank\"\u003eBrowse hands \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH35 (date), NH36 (day+date), NH38 (no date), or fit your own. \u003ca href=\"\/collections\/watch-movements\" target=\"_blank\"\u003eBrowse NH movements \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eBuilding an NH34 GMT?\u003c\/strong\u003e Add a \u003ca href=\"\/collections\/hands\/gmt-nh34\" target=\"_blank\"\u003eGMT 24H hand \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e (its own dropdown) and a \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\/gmt-nh34\" target=\"_blank\"\u003eGMT \/ NH34-specific dial \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — the 24-hour hand is the one optional extra on top of the ten.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptional extras\u003c\/strong\u003e (also dropdowns above): a 20mm \u003ca href=\"\/collections\/bracelets\" target=\"_blank\"\u003ebracelet \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e or \u003ca href=\"\/collections\/straps\" target=\"_blank\"\u003eleather strap \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e, and a Côtes de Genève \u003ca href=\"\/collections\/rotors-and-bridges\" target=\"_blank\"\u003edecorated bridge + rotor \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — only visible through a sapphire caseback, and our bridges pair only with our rotors, so pick them together.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnder \u003cstrong\u003eADD\u003c\/strong\u003e, tick \u003cstrong\u003eAssemble Watch (+SGD $100)\u003c\/strong\u003e and we'll do the full build in our Singapore workshop — crystal press, bezel and insert fit, movement seating, crown alignment, caseback press, and a final function check.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches need \u003cstrong\u003e2–5 business days\u003c\/strong\u003e of workshop time before they ship.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003ePrefer to build it yourself? See the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for step-by-step tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Bezel Click Spring\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Crystal Gasket\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Caseback Gasket\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eSpringbars are included with our bracelets and straps.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Default Title","offer_id":43604942946540,"sku":"SKX013-Sub36","price":88.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/products\/SKX013-Submariner-Watch-Case-36mm-NH34-Ready-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1673378246"},{"product_id":"skx013-gs-diver-watch-case-36mm-nh34-ready","title":"SKX013 GS Diver Watch Case - 36mm [NH34-Ready]","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe Smallest GS-Style Diver. 36mm. Ready to Mod.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA compact \u003cstrong\u003e36mm\u003c\/strong\u003e diver drawn from the Grand Seiko diver lineage — clean case lines, drilled-through lugs, and a tight lug-to-lug that sits beautifully on smaller wrists.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eOne of the smallest GS-style dive cases out there. Add a bezel insert and it wears with serious presence. \u003cstrong\u003eNH34 GMT-ready\u003c\/strong\u003e and built to fit our full SKX013 parts range.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eDesigned for all our \u003cstrong\u003e28.5mm dials\u003c\/strong\u003e and original NH movements (grey dial holding spacer).\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eSmall case, big wrist presence.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eCase diameter 36mm, lug-to-lug 44mm, 20mm lugs — a genuinely compact footprint that still reads like a diver.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eDrilled-through lugs.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eQuick, tool-free strap swaps and a clean tool-diver look.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eBuilt to dive.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e200m \/ 20 ATM, tested. Screw-down crown. Universal springbars.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFits the whole SKX013 ecosystem.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eBezel, insert, sapphire crystal, chapter ring, crown, dial, hands — all from our SKX013 range. 28.5mm dials; NH movements on the grey dial holding spacer.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cp style=\"text-align: center; margin-bottom: 6px; margin-top: 6px;\"\u003e\u003cstrong\u003eThe SKX013 case family — find your size\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 6px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCase\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eDiameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eLug-to-Lug\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCharacter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/skx013-watch-case-38mm-nh34-ready\" target=\"_blank\"\u003e\u003cstrong\u003eSKX013 38mm\u003c\/strong\u003e \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e38mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e45.5mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eOur take on the discontinued SKX013 diver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/skx013-submariner-watch-case-36mm-nh34-ready\" target=\"_blank\"\u003e\u003cstrong\u003eSKX013 Submariner 36mm\u003c\/strong\u003e \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e45.5mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eVintage sub-style skin-diver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eSKX013 GS Diver 36mm\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · YOU'RE VIEWING THIS\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e44mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eGS-style diver, most compact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eAll three share the same DNA — 316L steel or DLC black, 200m \/ 20 ATM, drilled-through lugs, 28.5mm dials, NH movements, and a 20mm bracelet or strap. What differs is size and silhouette.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px;\"\u003e\u003cem\u003eThis exact case also comes in \u003ca href=\"\/products\/skx013-gs-diver-watch-case-36mm-dlc-black-edition-nh34-ready\" target=\"_blank\"\u003ethe DLC Black Edition \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — this is the case body. The rest is sold separately.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003eThis case ships as a bare body (with click spring and gaskets). The bezel, insert, crystal, caseback, chapter ring, crown, dial, hands and movement are chosen separately — it's built to fit our full \u003ca href=\"\/collections\/seiko-skx013-mod-parts\" target=\"_blank\"\u003eSKX013 parts range \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case needs an \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it the dial sits too low and the hands won't clear. It takes both \u003cstrong\u003enormal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, pick an ultra thin chapter ring for clearance; a flat-printed dial works with either. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eCrown.\u003c\/strong\u003e Screw-down, SKX-style. \u003ca href=\"\/collections\/crowns\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!--Start tab labels--\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!--Start tab content--\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 36mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 9mm (case body only, excluding caseback and crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 44mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLugs\u003c\/strong\u003e Drilled-through\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw down, SKX-style\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSpringbars\u003c\/strong\u003e Universal\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e NH34, NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrowns\u003c\/strong\u003e SKX-style\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets \u0026amp; Straps\u003c\/strong\u003e Lucius Atelier bracelets and 20mm straps\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eWater Resistant\u003c\/strong\u003e 200m \/ 20 ATM (tested)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? You can build the whole watch right here — every part is an \u003cstrong\u003eAdd\u003c\/strong\u003e dropdown on this page. The case ships as a bare body (with the bezel click spring and the crystal \u0026amp; caseback gaskets); you choose the rest and spec it exactly how you like.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTen parts make a complete watch.\u003c\/strong\u003e You've got the case — here are the other nine, each a dropdown above, in the order you'd assemble them:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eBezel\u003c\/strong\u003e — the rotating dive bezel. \u003ca href=\"\/collections\/bezels-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 bezels \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBezel insert\u003c\/strong\u003e — the marked ring that sits inside the bezel. \u003ca href=\"\/collections\/bezel-inserts\/skx013\" target=\"_blank\"\u003eBrowse inserts \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaseback\u003c\/strong\u003e — seals the case; solid, or sapphire to show off a decorated movement. \u003ca href=\"\/collections\/seiko-skx013-mod-parts\" target=\"_blank\"\u003eBrowse SKX013 parts \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e \u003cem\u003e(required — seats the dial)\u003c\/em\u003e — SKX013-spec; without it the dial sits too low and the hands won't clear. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e \u003cem\u003e(required)\u003c\/em\u003e — screw-down, SKX-style. \u003ca href=\"\/collections\/crowns\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e — flat sapphire, pressed into the case. \u003ca href=\"\/collections\/sapphire-crystals-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crystals \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — match it to your movement: date, day+date, or no-date. \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\" target=\"_blank\"\u003eBrowse dials \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired to your dial; most modders match lume colour across hands and markers. \u003ca href=\"\/collections\/hands\" target=\"_blank\"\u003eBrowse hands \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH35 (date), NH36 (day+date), NH38 (no date), or fit your own. \u003ca href=\"\/collections\/watch-movements\" target=\"_blank\"\u003eBrowse NH movements \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eBuilding an NH34 GMT?\u003c\/strong\u003e Add a \u003ca href=\"\/collections\/hands\/gmt-nh34\" target=\"_blank\"\u003eGMT 24H hand \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e (its own dropdown) and a \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\/gmt-nh34\" target=\"_blank\"\u003eGMT \/ NH34-specific dial \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — the 24-hour hand is the one optional extra on top of the ten.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptional extras\u003c\/strong\u003e (also dropdowns above): a 20mm \u003ca href=\"\/collections\/bracelets\" target=\"_blank\"\u003ebracelet \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e or \u003ca href=\"\/collections\/straps\" target=\"_blank\"\u003eleather strap \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e, and a Côtes de Genève \u003ca href=\"\/collections\/rotors-and-bridges\" target=\"_blank\"\u003edecorated bridge + rotor \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — only visible through a sapphire caseback, and our bridges pair only with our rotors, so pick them together.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnder \u003cstrong\u003eADD\u003c\/strong\u003e, tick \u003cstrong\u003eAssemble Watch (+SGD $100)\u003c\/strong\u003e and we'll do the full build in our Singapore workshop — crystal press, bezel and insert fit, movement seating, crown alignment, caseback press, and a final function check.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches need \u003cstrong\u003e2–5 business days\u003c\/strong\u003e of workshop time before they ship.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003ePrefer to build it yourself? See the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for step-by-step tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Bezel Click Spring\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Crystal Gasket\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Caseback Gasket\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eSpringbars are included with our bracelets and straps.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Default Title","offer_id":43604963361004,"sku":"SKX013-GSD36","price":88.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/products\/SKX013-GS-Diver-Watch-Case-36mm-NH34-Ready-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1743621377"},{"product_id":"skx013-watch-case-38mm-dlc-black-edition-nh34-ready","title":"SKX013 Watch Case - 38mm (DLC BLACK EDITION) [NH34-Ready]","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe Discontinued Diver. Rebuilt at 38mm. Ready to Mod.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eOur ground-up reinterpretation of the discontinued \u003cstrong\u003eSKX013\u003c\/strong\u003e — sized at a wearable \u003cstrong\u003e38mm\u003c\/strong\u003e, with drilled-through lugs for that period-correct, tool-free strap-change character.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eBuilt from the start to take our entire SKX013 mod-parts range, so the final piece is yours to spec. \u003cstrong\u003eNH34 GMT-ready\u003c\/strong\u003e, and compatible with the full NH movement family.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eDesigned to fit all our \u003cstrong\u003e28.5mm dials\u003c\/strong\u003e and original NH movements (which seat on the grey dial holding spacer).\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThis edition wears a \u003cstrong\u003eDLC black coating\u003c\/strong\u003e — diamond-like carbon, roughly five times the surface hardness of 316L steel and far more scratch-resistant than standard PVD. A deep, durable black built for daily wear.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eWears 38, builds big.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eCase diameter 38mm, lug-to-lug 45.5mm, 20mm lugs. Drop in a bezel insert and it carries real wrist presence for its size. \u003ca href=\"\/blogs\/news\/38mm-watch-looks-smaller-case-proportion-guide\" target=\"_blank\"\u003eSee how a small dive case wears bigger \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eDrilled-through lugs.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eVintage-style drilled lugs — quick, tool-free strap swaps and an honest period look.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eBuilt to dive.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e200m \/ 20 ATM, tested. Screw-down crown. Universal springbars.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFits the whole SKX013 ecosystem.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eBezel, insert, sapphire crystal, chapter ring, crown, dial, hands — all from our SKX013 range. 28.5mm dials; NH movements on the grey dial holding spacer.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cp style=\"text-align: center; margin-bottom: 6px; margin-top: 6px;\"\u003e\u003cstrong\u003eThe SKX013 case family — find your size\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 6px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCase\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eDiameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eLug-to-Lug\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCharacter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eSKX013 38mm\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · YOU'RE VIEWING THIS\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e38mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e45.5mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eOur take on the discontinued SKX013 diver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/skx013-submariner-watch-case-36mm-dlc-black-edition-nh34-ready\" target=\"_blank\"\u003e\u003cstrong\u003eSKX013 Submariner 36mm\u003c\/strong\u003e \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e45.5mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eVintage sub-style skin-diver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/skx013-gs-diver-watch-case-36mm-dlc-black-edition-nh34-ready\" target=\"_blank\"\u003e\u003cstrong\u003eSKX013 GS Diver 36mm\u003c\/strong\u003e \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e44mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eGS-style diver, most compact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eAll three share the same DNA — 316L steel or DLC black, 200m \/ 20 ATM, drilled-through lugs, 28.5mm dials, NH movements, and a 20mm bracelet or strap. What differs is size and silhouette.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px;\"\u003e\u003cem\u003eThis exact case also comes in \u003ca href=\"\/products\/skx013-watch-case-38mm-nh34-ready\" target=\"_blank\"\u003ethe natural 316L steel version \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — this is the case body. The rest is sold separately.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003eThis case ships as a bare body (with click spring and gaskets). The bezel, insert, crystal, caseback, chapter ring, crown, dial, hands and movement are chosen separately — it's built to fit our full \u003ca href=\"\/collections\/seiko-skx013-mod-parts\" target=\"_blank\"\u003eSKX013 parts range \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case needs an \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it the dial sits too low and the hands won't clear. It takes both \u003cstrong\u003enormal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, pick an ultra thin chapter ring for clearance; a flat-printed dial works with either. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eCrown.\u003c\/strong\u003e Screw-down, SKX-style. \u003ca href=\"\/collections\/crowns\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!--Start tab labels--\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!--Start tab content--\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 38mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 9mm (case body only, excluding caseback and crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 45.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel with DLC Black Coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLugs\u003c\/strong\u003e Drilled-through\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw down, SKX-style\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSpringbars\u003c\/strong\u003e Universal\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e NH34, NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrowns\u003c\/strong\u003e SKX-style\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets \u0026amp; Straps\u003c\/strong\u003e Lucius Atelier bracelets and 20mm straps\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eWater Resistant\u003c\/strong\u003e 200m \/ 20 ATM (tested)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? You can build the whole watch right here — every part is an \u003cstrong\u003eAdd\u003c\/strong\u003e dropdown on this page. The case ships as a bare body (with the bezel click spring and the crystal \u0026amp; caseback gaskets); you choose the rest and spec it exactly how you like.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTen parts make a complete watch.\u003c\/strong\u003e You've got the case — here are the other nine, each a dropdown above, in the order you'd assemble them:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eBezel\u003c\/strong\u003e — the rotating dive bezel. \u003ca href=\"\/collections\/bezels-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 bezels \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBezel insert\u003c\/strong\u003e — the marked ring that sits inside the bezel. \u003ca href=\"\/collections\/bezel-inserts\/skx013\" target=\"_blank\"\u003eBrowse inserts \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaseback\u003c\/strong\u003e — seals the case; solid, or sapphire to show off a decorated movement. \u003ca href=\"\/collections\/seiko-skx013-mod-parts\" target=\"_blank\"\u003eBrowse SKX013 parts \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e \u003cem\u003e(required — seats the dial)\u003c\/em\u003e — SKX013-spec; without it the dial sits too low and the hands won't clear. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e \u003cem\u003e(required)\u003c\/em\u003e — screw-down, SKX-style. \u003ca href=\"\/collections\/crowns\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e — flat sapphire, pressed into the case. \u003ca href=\"\/collections\/sapphire-crystals-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crystals \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — match it to your movement: date, day+date, or no-date. \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\" target=\"_blank\"\u003eBrowse dials \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired to your dial; most modders match lume colour across hands and markers. \u003ca href=\"\/collections\/hands\" target=\"_blank\"\u003eBrowse hands \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH35 (date), NH36 (day+date), NH38 (no date), or fit your own. \u003ca href=\"\/collections\/watch-movements\" target=\"_blank\"\u003eBrowse NH movements \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eBuilding an NH34 GMT?\u003c\/strong\u003e Add a \u003ca href=\"\/collections\/hands\/gmt-nh34\" target=\"_blank\"\u003eGMT 24H hand \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e (its own dropdown) and a \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\/gmt-nh34\" target=\"_blank\"\u003eGMT \/ NH34-specific dial \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — the 24-hour hand is the one optional extra on top of the ten.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptional extras\u003c\/strong\u003e (also dropdowns above): a 20mm \u003ca href=\"\/collections\/bracelets\" target=\"_blank\"\u003ebracelet \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e or \u003ca href=\"\/collections\/straps\" target=\"_blank\"\u003eleather strap \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e, and a Côtes de Genève \u003ca href=\"\/collections\/rotors-and-bridges\" target=\"_blank\"\u003edecorated bridge + rotor \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — only visible through a sapphire caseback, and our bridges pair only with our rotors, so pick them together.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnder \u003cstrong\u003eADD\u003c\/strong\u003e, tick \u003cstrong\u003eAssemble Watch (+SGD $100)\u003c\/strong\u003e and we'll do the full build in our Singapore workshop — crystal press, bezel and insert fit, movement seating, crown alignment, caseback press, and a final function check.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches need \u003cstrong\u003e2–5 business days\u003c\/strong\u003e of workshop time before they ship.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003ePrefer to build it yourself? See the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for step-by-step tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Bezel Click Spring\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Crystal Gasket\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Caseback Gasket\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eSpringbars are included with our bracelets and straps.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Default Title","offer_id":43604979450092,"sku":"SKX013-WC38-DLC","price":98.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/products\/SKX013-Watch-Case-38mm-DLC-BLACK-EDITION-NH34-Ready-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1673378304"},{"product_id":"skx013-submariner-watch-case-36mm-dlc-black-edition-nh34-ready","title":"SKX013 Submariner Watch Case - 36mm (DLC BLACK EDITION) [NH34-Ready]","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe Smallest Sub-Style Diver. 36mm. Ready to Mod.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA ground-up take on the definitive 1960s skin-diver silhouette — drilled-through lugs and gently pointed crown guards, in a rare, compact \u003cstrong\u003e36mm\u003c\/strong\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eOne of the smallest sub-style dive cases on the market. Add a bezel insert and it wears far bigger than the numbers suggest. \u003cstrong\u003eNH34 GMT-ready\u003c\/strong\u003e and built to fit our full SKX013 parts range.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eDesigned for all our \u003cstrong\u003e28.5mm dials\u003c\/strong\u003e and original NH movements (grey dial holding spacer). Pairs especially well with a 7mm big crown.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThis edition wears a \u003cstrong\u003eDLC black coating\u003c\/strong\u003e — diamond-like carbon, roughly five times the surface hardness of 316L steel and far more scratch-resistant than standard PVD. A deep, durable black built for daily wear.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eSmall case, big wrist presence.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eCase diameter 36mm, lug-to-lug 45.5mm, 20mm lugs. With an insert fitted it punches well above its size.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eVintage dive DNA.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eDrilled-through lugs and slightly pointed crown guards — faithful to the era's tool divers.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eBuilt to dive.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e200m \/ 20 ATM, tested. Screw-down crown — we recommend a 7mm big crown for grip.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFits the whole SKX013 ecosystem.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eBezel, insert, sapphire crystal, chapter ring, crown, dial, hands — all from our SKX013 range. 28.5mm dials; NH movements on the grey dial holding spacer.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cp style=\"text-align: center; margin-bottom: 6px; margin-top: 6px;\"\u003e\u003cstrong\u003eThe SKX013 case family — find your size\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 6px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCase\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eDiameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eLug-to-Lug\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCharacter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/skx013-watch-case-38mm-dlc-black-edition-nh34-ready\" target=\"_blank\"\u003e\u003cstrong\u003eSKX013 38mm\u003c\/strong\u003e \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e38mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e45.5mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eOur take on the discontinued SKX013 diver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eSKX013 Submariner 36mm\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · YOU'RE VIEWING THIS\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e45.5mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eVintage sub-style skin-diver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/skx013-gs-diver-watch-case-36mm-dlc-black-edition-nh34-ready\" target=\"_blank\"\u003e\u003cstrong\u003eSKX013 GS Diver 36mm\u003c\/strong\u003e \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e44mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eGS-style diver, most compact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eAll three share the same DNA — 316L steel or DLC black, 200m \/ 20 ATM, drilled-through lugs, 28.5mm dials, NH movements, and a 20mm bracelet or strap. What differs is size and silhouette.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px;\"\u003e\u003cem\u003eThis exact case also comes in \u003ca href=\"\/products\/skx013-submariner-watch-case-36mm-nh34-ready\" target=\"_blank\"\u003ethe natural 316L steel version \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — this is the case body. The rest is sold separately.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003eThis case ships as a bare body (with click spring and gaskets). The bezel, insert, crystal, caseback, chapter ring, crown, dial, hands and movement are chosen separately — it's built to fit our full \u003ca href=\"\/collections\/seiko-skx013-mod-parts\" target=\"_blank\"\u003eSKX013 parts range \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case needs an \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it the dial sits too low and the hands won't clear. It takes both \u003cstrong\u003enormal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, pick an ultra thin chapter ring for clearance; a flat-printed dial works with either. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eCrown.\u003c\/strong\u003e Screw-down, SKX-style — we recommend a 7mm big crown on this case for grip. \u003ca href=\"\/collections\/crowns\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!--Start tab labels--\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!--Start tab content--\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 36mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 9mm (case body only, excluding caseback and crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 45.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel with DLC Black Coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLugs\u003c\/strong\u003e Drilled-through\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw down, SKX-style\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSpringbars\u003c\/strong\u003e Universal\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e NH34, NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrowns\u003c\/strong\u003e SKX-style\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets \u0026amp; Straps\u003c\/strong\u003e Lucius Atelier bracelets and 20mm straps\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eWater Resistant\u003c\/strong\u003e 200m \/ 20 ATM (tested)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? You can build the whole watch right here — every part is an \u003cstrong\u003eAdd\u003c\/strong\u003e dropdown on this page. The case ships as a bare body (with the bezel click spring and the crystal \u0026amp; caseback gaskets); you choose the rest and spec it exactly how you like.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTen parts make a complete watch.\u003c\/strong\u003e You've got the case — here are the other nine, each a dropdown above, in the order you'd assemble them:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eBezel\u003c\/strong\u003e — the rotating dive bezel. \u003ca href=\"\/collections\/bezels-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 bezels \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBezel insert\u003c\/strong\u003e — the marked ring that sits inside the bezel. \u003ca href=\"\/collections\/bezel-inserts\/skx013\" target=\"_blank\"\u003eBrowse inserts \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaseback\u003c\/strong\u003e — seals the case; solid, or sapphire to show off a decorated movement. \u003ca href=\"\/collections\/seiko-skx013-mod-parts\" target=\"_blank\"\u003eBrowse SKX013 parts \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e \u003cem\u003e(required — seats the dial)\u003c\/em\u003e — SKX013-spec; without it the dial sits too low and the hands won't clear. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e \u003cem\u003e(required)\u003c\/em\u003e — screw-down, SKX-style. We suggest a 7mm big crown on this case for a better grip. \u003ca href=\"\/collections\/crowns\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e — flat sapphire, pressed into the case. \u003ca href=\"\/collections\/sapphire-crystals-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crystals \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — match it to your movement: date, day+date, or no-date. \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\" target=\"_blank\"\u003eBrowse dials \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired to your dial; most modders match lume colour across hands and markers. \u003ca href=\"\/collections\/hands\" target=\"_blank\"\u003eBrowse hands \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH35 (date), NH36 (day+date), NH38 (no date), or fit your own. \u003ca href=\"\/collections\/watch-movements\" target=\"_blank\"\u003eBrowse NH movements \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eBuilding an NH34 GMT?\u003c\/strong\u003e Add a \u003ca href=\"\/collections\/hands\/gmt-nh34\" target=\"_blank\"\u003eGMT 24H hand \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e (its own dropdown) and a \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\/gmt-nh34\" target=\"_blank\"\u003eGMT \/ NH34-specific dial \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — the 24-hour hand is the one optional extra on top of the ten.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptional extras\u003c\/strong\u003e (also dropdowns above): a 20mm \u003ca href=\"\/collections\/bracelets\" target=\"_blank\"\u003ebracelet \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e or \u003ca href=\"\/collections\/straps\" target=\"_blank\"\u003eleather strap \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e, and a Côtes de Genève \u003ca href=\"\/collections\/rotors-and-bridges\" target=\"_blank\"\u003edecorated bridge + rotor \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — only visible through a sapphire caseback, and our bridges pair only with our rotors, so pick them together.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnder \u003cstrong\u003eADD\u003c\/strong\u003e, tick \u003cstrong\u003eAssemble Watch (+SGD $100)\u003c\/strong\u003e and we'll do the full build in our Singapore workshop — crystal press, bezel and insert fit, movement seating, crown alignment, caseback press, and a final function check.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches need \u003cstrong\u003e2–5 business days\u003c\/strong\u003e of workshop time before they ship.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003ePrefer to build it yourself? See the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for step-by-step tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Bezel Click Spring\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Crystal Gasket\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Caseback Gasket\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eSpringbars are included with our bracelets and straps.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Default Title","offer_id":43604979482860,"sku":"SKX013-Sub36-DLC","price":98.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/products\/SKX013-Submariner-Watch-Case-36mm-DLC-BLACK-EDITION-NH34-Ready-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1743621386"},{"product_id":"skx013-gs-diver-watch-case-36mm-dlc-black-edition-nh34-ready","title":"SKX013 GS Diver Watch Case - 36mm (DLC BLACK EDITION) [NH34-Ready]","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe Smallest GS-Style Diver. 36mm. Ready to Mod.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA compact \u003cstrong\u003e36mm\u003c\/strong\u003e diver drawn from the Grand Seiko diver lineage — clean case lines, drilled-through lugs, and a tight lug-to-lug that sits beautifully on smaller wrists.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eOne of the smallest GS-style dive cases out there. Add a bezel insert and it wears with serious presence. \u003cstrong\u003eNH34 GMT-ready\u003c\/strong\u003e and built to fit our full SKX013 parts range.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eDesigned for all our \u003cstrong\u003e28.5mm dials\u003c\/strong\u003e and original NH movements (grey dial holding spacer).\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThis edition wears a \u003cstrong\u003eDLC black coating\u003c\/strong\u003e — diamond-like carbon, roughly five times the surface hardness of 316L steel and far more scratch-resistant than standard PVD. A deep, durable black built for daily wear.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eSmall case, big wrist presence.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eCase diameter 36mm, lug-to-lug 44mm, 20mm lugs — a genuinely compact footprint that still reads like a diver.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eDrilled-through lugs.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eQuick, tool-free strap swaps and a clean tool-diver look.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eBuilt to dive.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e200m \/ 20 ATM, tested. Screw-down crown. Universal springbars.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFits the whole SKX013 ecosystem.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eBezel, insert, sapphire crystal, chapter ring, crown, dial, hands — all from our SKX013 range. 28.5mm dials; NH movements on the grey dial holding spacer.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cp style=\"text-align: center; margin-bottom: 6px; margin-top: 6px;\"\u003e\u003cstrong\u003eThe SKX013 case family — find your size\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 6px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCase\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eDiameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eLug-to-Lug\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCharacter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/skx013-watch-case-38mm-dlc-black-edition-nh34-ready\" target=\"_blank\"\u003e\u003cstrong\u003eSKX013 38mm\u003c\/strong\u003e \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e38mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e45.5mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eOur take on the discontinued SKX013 diver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/skx013-submariner-watch-case-36mm-dlc-black-edition-nh34-ready\" target=\"_blank\"\u003e\u003cstrong\u003eSKX013 Submariner 36mm\u003c\/strong\u003e \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e45.5mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eVintage sub-style skin-diver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eSKX013 GS Diver 36mm\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · YOU'RE VIEWING THIS\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e44mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eGS-style diver, most compact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eAll three share the same DNA — 316L steel or DLC black, 200m \/ 20 ATM, drilled-through lugs, 28.5mm dials, NH movements, and a 20mm bracelet or strap. What differs is size and silhouette.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px;\"\u003e\u003cem\u003eThis exact case also comes in \u003ca href=\"\/products\/skx013-gs-diver-watch-case-36mm-nh34-ready\" target=\"_blank\"\u003ethe natural 316L steel version \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — this is the case body. The rest is sold separately.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003eThis case ships as a bare body (with click spring and gaskets). The bezel, insert, crystal, caseback, chapter ring, crown, dial, hands and movement are chosen separately — it's built to fit our full \u003ca href=\"\/collections\/seiko-skx013-mod-parts\" target=\"_blank\"\u003eSKX013 parts range \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case needs an \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it the dial sits too low and the hands won't clear. It takes both \u003cstrong\u003enormal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, pick an ultra thin chapter ring for clearance; a flat-printed dial works with either. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eCrown.\u003c\/strong\u003e Screw-down, SKX-style. \u003ca href=\"\/collections\/crowns\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!--Start tab labels--\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!--Start tab content--\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 36mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 9mm (case body only, excluding caseback and crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 44mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel with DLC Black Coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLugs\u003c\/strong\u003e Drilled-through\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw down, SKX-style\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSpringbars\u003c\/strong\u003e Universal\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e NH34, NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrowns\u003c\/strong\u003e SKX-style\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets \u0026amp; Straps\u003c\/strong\u003e Lucius Atelier bracelets and 20mm straps\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eWater Resistant\u003c\/strong\u003e 200m \/ 20 ATM (tested)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? You can build the whole watch right here — every part is an \u003cstrong\u003eAdd\u003c\/strong\u003e dropdown on this page. The case ships as a bare body (with the bezel click spring and the crystal \u0026amp; caseback gaskets); you choose the rest and spec it exactly how you like.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTen parts make a complete watch.\u003c\/strong\u003e You've got the case — here are the other nine, each a dropdown above, in the order you'd assemble them:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eBezel\u003c\/strong\u003e — the rotating dive bezel. \u003ca href=\"\/collections\/bezels-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 bezels \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBezel insert\u003c\/strong\u003e — the marked ring that sits inside the bezel. \u003ca href=\"\/collections\/bezel-inserts\/skx013\" target=\"_blank\"\u003eBrowse inserts \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaseback\u003c\/strong\u003e — seals the case; solid, or sapphire to show off a decorated movement. \u003ca href=\"\/collections\/seiko-skx013-mod-parts\" target=\"_blank\"\u003eBrowse SKX013 parts \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e \u003cem\u003e(required — seats the dial)\u003c\/em\u003e — SKX013-spec; without it the dial sits too low and the hands won't clear. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e \u003cem\u003e(required)\u003c\/em\u003e — screw-down, SKX-style. \u003ca href=\"\/collections\/crowns\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e — flat sapphire, pressed into the case. \u003ca href=\"\/collections\/sapphire-crystals-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 crystals \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — match it to your movement: date, day+date, or no-date. \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\" target=\"_blank\"\u003eBrowse dials \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired to your dial; most modders match lume colour across hands and markers. \u003ca href=\"\/collections\/hands\" target=\"_blank\"\u003eBrowse hands \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH35 (date), NH36 (day+date), NH38 (no date), or fit your own. \u003ca href=\"\/collections\/watch-movements\" target=\"_blank\"\u003eBrowse NH movements \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eBuilding an NH34 GMT?\u003c\/strong\u003e Add a \u003ca href=\"\/collections\/hands\/gmt-nh34\" target=\"_blank\"\u003eGMT 24H hand \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e (its own dropdown) and a \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\/gmt-nh34\" target=\"_blank\"\u003eGMT \/ NH34-specific dial \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — the 24-hour hand is the one optional extra on top of the ten.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptional extras\u003c\/strong\u003e (also dropdowns above): a 20mm \u003ca href=\"\/collections\/bracelets\" target=\"_blank\"\u003ebracelet \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e or \u003ca href=\"\/collections\/straps\" target=\"_blank\"\u003eleather strap \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e, and a Côtes de Genève \u003ca href=\"\/collections\/rotors-and-bridges\" target=\"_blank\"\u003edecorated bridge + rotor \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — only visible through a sapphire caseback, and our bridges pair only with our rotors, so pick them together.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnder \u003cstrong\u003eADD\u003c\/strong\u003e, tick \u003cstrong\u003eAssemble Watch (+SGD $100)\u003c\/strong\u003e and we'll do the full build in our Singapore workshop — crystal press, bezel and insert fit, movement seating, crown alignment, caseback press, and a final function check.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches need \u003cstrong\u003e2–5 business days\u003c\/strong\u003e of workshop time before they ship.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003ePrefer to build it yourself? See the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for step-by-step tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Bezel Click Spring\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Crystal Gasket\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Caseback Gasket\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eSpringbars are included with our bracelets and straps.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Default Title","offer_id":43604979745004,"sku":"SKX013-GSD36-DLC","price":98.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/products\/SKX013-GS-Diver-Watch-Case-36mm-DLC-BLACK-EDITION-NH34-Ready-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1673378354"},{"product_id":"gs-watch-case-39mm-v2-nh34-ready","title":"GS Watch Case - 39mm v2 [NH34-Ready]","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe GS Dress Case. Faceted Lines, 39mm. Built to Take Five Movements.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA clean dress case in the Grand Seiko idiom — sharp facets, a slim polished bezel, dial-forward proportions — sized at a confident \u003cstrong\u003e39mm\u003c\/strong\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eBuilt around a selectable caseback, so one case fits \u003cstrong\u003efive movement families\u003c\/strong\u003e: Seiko NH, Swiss ETA2824 and ETA2893, and Sellita SW200, SW260 and SW330. Pick the caseback for your movement and the matching spacer and caseback ship with it.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe sapphire crystal is \u003cstrong\u003ealready pressed in\u003c\/strong\u003e and a screw-down crown is fitted, so the case arrives ready for dial, hands and movement. Designed to fit our \u003cstrong\u003e28.5mm dials\u003c\/strong\u003e, an SKX013 chapter ring, and original NH movements on the grey dial holding spacer. \u003cstrong\u003eNH34 GMT-ready.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFive movements, one case.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eSeiko NH, Swiss ETA2824 and ETA2893, Sellita SW200, SW260 and SW330 — chosen by the caseback you pick. The movement spacer and matching caseback are supplied.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eSapphire, already in.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eA double-domed sapphire with anti-reflective coating, pressed and sealed in our workshop — and a signed screw-down crown fitted. You skip the riskiest press of the build.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eDress proportions, 39mm.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eCase 39mm, lug-to-lug 46mm, 20mm lugs. A slim bezel and a sapphire that lifts the dial — it wears every millimetre of its size.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFits the 28.5mm dial ecosystem.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e28.5mm dials, an SKX013 chapter ring, NH-compatible hands. Pairs with our 20mm bracelets and straps.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cp style=\"text-align: center; margin-bottom: 6px; margin-top: 6px;\"\u003e\u003cstrong\u003eThe GS case family — find your size\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 6px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCase\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eDiameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eLug-to-Lug\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCharacter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eGS Watch Case 39mm v2\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · YOU'RE VIEWING THIS\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e39mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e46mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eFaceted dress case, largest\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/gs-watch-case-36mm-v2\" target=\"_blank\"\u003e\u003cstrong\u003eGS Watch Case 36mm v2\u003c\/strong\u003e \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e43mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eFaceted dress case, classic mid-size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/gs-diver-watch-case-36mm-nh34-ready\" target=\"_blank\"\u003e\u003cstrong\u003eGS Diver 36mm\u003c\/strong\u003e \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e43mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eDive-styled GS, 200m bezel look\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eAll three are the same GS platform — 316L steel, 200m \/ 20 ATM, a double-domed sapphire pre-installed, 28.5mm dials, an SKX013 chapter ring, and a 20mm bracelet or strap. The 39 and the Diver are NH34 GMT-ready; the 36mm dress runs NH35\/36\/38 plus Swiss ETA and Sellita.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — what's in the box, and what's sold separately.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003eThis case ships with the sapphire crystal pre-installed and a screw-down crown fitted. The dial, hands, chapter ring and movement are chosen separately — build it to fit our full \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\" target=\"_blank\"\u003edial range \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case needs an \u003cstrong\u003eSKX013 chapter ring\u003c\/strong\u003e to seat the dial correctly — it is mandatory and never included. It takes both \u003cstrong\u003enormal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, pick an ultra thin chapter ring for clearance; a flat-printed dial works with either. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse SKX013 chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 39mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 12.8mm (Solid Caseback), 13.3mm (Sapphire Caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 46mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Double Domed Sapphire with Clear Anti-Reflective Coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 29.5mm x 1.5mm x 3mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw down\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e NH34, NH35, NH36, NH38, NH72, ETA2824, ETA2893, SW200, SW260, SW330\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets \u0026amp; Straps\u003c\/strong\u003e Lucius Atelier bracelets and 20mm straps\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eWater Resistant\u003c\/strong\u003e 200m \/ 20 ATM (tested)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eThe case ships with the sapphire crystal pressed in and a screw-down crown fitted. You choose the rest below — every part is an \u003cstrong\u003eAdd\u003c\/strong\u003e dropdown on this page — and the caseback you select sets which movement family the case fits.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFour more parts make a complete watch\u003c\/strong\u003e, each a dropdown above, in the order you'd assemble them:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e \u003cem\u003e(required — seats the dial)\u003c\/em\u003e — SKX013-spec; without it the dial sits too low and the hands won't clear. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013\" target=\"_blank\"\u003eBrowse chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — match it to your movement: date, day+date, or no-date. \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\" target=\"_blank\"\u003eBrowse dials \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired to your dial; most modders match lume colour across hands and markers. \u003ca href=\"\/collections\/hands\" target=\"_blank\"\u003eBrowse hands \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — a Seiko NH, or a Swiss ETA2824\/2893 or Sellita SW200\/260\/330 (pick the matching caseback above). \u003ca href=\"\/collections\/watch-movements\" target=\"_blank\"\u003eBrowse movements \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eBuilding an NH34 GMT?\u003c\/strong\u003e Add a \u003ca href=\"\/collections\/hands\/gmt-nh34\" target=\"_blank\"\u003eGMT 24H hand \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e and a \u003ca href=\"\/collections\/dials-swiss-quality-seiko-mod-parts\/gmt-nh34\" target=\"_blank\"\u003eGMT \/ NH34-specific dial \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — the 24-hour hand is the one optional extra.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptional extras\u003c\/strong\u003e (also dropdowns above): a 20mm \u003ca href=\"\/collections\/bracelets\" target=\"_blank\"\u003ebracelet \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e or \u003ca href=\"\/collections\/straps\" target=\"_blank\"\u003eleather strap \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e, and a Côtes de Genève \u003ca href=\"\/collections\/rotors-and-bridges\" target=\"_blank\"\u003edecorated bridge + rotor \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — only visible through a sapphire caseback, and our bridges pair only with our rotors, so pick them together.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnder \u003cstrong\u003eADD\u003c\/strong\u003e, tick \u003cstrong\u003eAssemble Watch (+SGD $100)\u003c\/strong\u003e and we'll do the full build in our Singapore workshop — movement seating, caseback fit, crown alignment, dial and hands, and a final function check.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches need \u003cstrong\u003e2–5 business days\u003c\/strong\u003e of workshop time before they ship.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003ePrefer to build it yourself? See the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for step-by-step tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case (sapphire crystal and screw-down crown installed)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x NH Caseback (depends on selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2824\/SW200\/SW260 Movement Spacer (depends on selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2893\/SW330 Movement Spacer (depends on selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2824\/SW200\/SW260 Sapphire Caseback (depends on selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x ETA2893\/SW330 Sapphire Caseback (depends on selection)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"NH [Solid] \/ Coin Edge 6mm \/ No Sign \/ Plain","offer_id":43891634798828,"sku":"GS39v2\/NH.Solid\/CE6","price":145.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Solid] \/ Coin Edge 6mm \/ Signed S","offer_id":43891678675180,"sku":"GS39v2\/NH.Solid\/CE6S","price":145.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Solid] \/ Coin Edge 6mm \/ Signed S in Red","offer_id":43891678707948,"sku":"GS39v2\/NH.Solid\/CE6SRed","price":145.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Solid] \/ Coin Edge 7mm \/ No Sign \/ Plain","offer_id":43891650068716,"sku":"GS39v2\/NH.Solid\/CE7","price":145.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Solid] \/ Coin Edge 7mm \/ Signed S","offer_id":43891678740716,"sku":"GS39v2\/NH.Solid\/CE7S","price":145.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Solid] \/ Coin Edge 7mm \/ Signed S in Red","offer_id":43891678773484,"sku":"GS39v2\/NH.Solid\/CE7SRed","price":145.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Solid] \/ Knurled 6mm \/ No Sign \/ Plain","offer_id":43891650101484,"sku":"GS39v2\/NH.Solid\/K6","price":145.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Solid] \/ Knurled 6mm \/ Signed S","offer_id":43891678806252,"sku":"GS39v2\/NH.Solid\/K6S","price":145.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Solid] \/ Knurled 6mm \/ Signed S in Red","offer_id":43891678839020,"sku":"GS39v2\/NH.Solid\/K6SRed","price":145.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Solid] \/ Knurled 7mm \/ No Sign \/ Plain","offer_id":43891650134252,"sku":"GS39v2\/NH.Solid\/K7","price":145.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Solid] \/ Knurled 7mm \/ Signed S","offer_id":43891678871788,"sku":"GS39v2\/NH.Solid\/K7S","price":145.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Solid] \/ Knurled 7mm \/ Signed S in Red","offer_id":43891678904556,"sku":"GS39v2\/NH.Solid\/K7SRed","price":145.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Sapphire] \/ Coin Edge 6mm \/ No Sign \/ Plain","offer_id":43891634831596,"sku":"GS39v2\/NH.Sapp\/CE6","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Sapphire] \/ Coin Edge 6mm \/ Signed S","offer_id":43891678937324,"sku":"GS39v2\/NH.Sapp\/CE6S","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Sapphire] \/ Coin Edge 6mm \/ Signed S in Red","offer_id":43891678970092,"sku":"GS39v2\/NH.Sapp\/CE6SRed","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Sapphire] \/ Coin Edge 7mm \/ No Sign \/ Plain","offer_id":43891650167020,"sku":"GS39v2\/NH.Sapp\/CE7","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Sapphire] \/ Coin Edge 7mm \/ Signed S","offer_id":43891679002860,"sku":"GS39v2\/NH.Sapp\/CE7S","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Sapphire] \/ Coin Edge 7mm \/ Signed S in Red","offer_id":43891679035628,"sku":"GS39v2\/NH.Sapp\/CE7SRed","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Sapphire] \/ Knurled 6mm \/ No Sign \/ Plain","offer_id":43891650199788,"sku":"GS39v2\/NH.Sapp\/K6","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Sapphire] \/ Knurled 6mm \/ Signed S","offer_id":43891679068396,"sku":"GS39v2\/NH.Sapp\/K6S","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Sapphire] \/ Knurled 6mm \/ Signed S in Red","offer_id":43891679101164,"sku":"GS39v2\/NH.Sapp\/K6SRed","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Sapphire] \/ Knurled 7mm \/ No Sign \/ Plain","offer_id":43891650232556,"sku":"GS39v2\/NH.Sapp\/K7","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Sapphire] \/ Knurled 7mm \/ Signed S","offer_id":43891679133932,"sku":"GS39v2\/NH.Sapp\/K7S","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"NH [Sapphire] \/ Knurled 7mm \/ Signed S in Red","offer_id":43891679166700,"sku":"GS39v2\/NH.Sapp\/K7SRed","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2824\/SW200 [Sapphire] \/ Coin Edge 6mm \/ No Sign \/ Plain","offer_id":43891634864364,"sku":"GS39v2\/ETA2824\/CE6","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2824\/SW200 [Sapphire] \/ Coin Edge 6mm \/ Signed S","offer_id":43891679199468,"sku":"GS39v2\/ETA2824\/CE6S","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2824\/SW200 [Sapphire] \/ Coin Edge 6mm \/ Signed S in Red","offer_id":43891679232236,"sku":"GS39v2\/ETA2824\/CE6SRed","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2824\/SW200 [Sapphire] \/ Coin Edge 7mm \/ No Sign \/ Plain","offer_id":43891650265324,"sku":"GS39v2\/ETA2824\/CE7","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2824\/SW200 [Sapphire] \/ Coin Edge 7mm \/ Signed S","offer_id":43891679265004,"sku":"GS39v2\/ETA2824\/CE7S","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2824\/SW200 [Sapphire] \/ Coin Edge 7mm \/ Signed S in Red","offer_id":43891679297772,"sku":"GS39v2\/ETA2824\/CE7SRed","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2824\/SW200 [Sapphire] \/ Knurled 6mm \/ No Sign \/ Plain","offer_id":43891650298092,"sku":"GS39v2\/ETA2824\/K6","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2824\/SW200 [Sapphire] \/ Knurled 6mm \/ Signed S","offer_id":43891679330540,"sku":"GS39v2\/ETA2824\/K6S","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2824\/SW200 [Sapphire] \/ Knurled 6mm \/ Signed S in Red","offer_id":43891679363308,"sku":"GS39v2\/ETA2824\/K6SRed","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2824\/SW200 [Sapphire] \/ Knurled 7mm \/ No Sign \/ Plain","offer_id":43891650330860,"sku":"GS39v2\/ETA2824\/K7","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2824\/SW200 [Sapphire] \/ Knurled 7mm \/ Signed S","offer_id":43891679396076,"sku":"GS39v2\/ETA2824\/K7S","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2824\/SW200 [Sapphire] \/ Knurled 7mm \/ Signed S in Red","offer_id":43891679428844,"sku":"GS39v2\/ETA2824\/K7SRed","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2893\/SW330 (GMT) [Sapphire] \/ Coin Edge 6mm \/ No Sign \/ Plain","offer_id":43891634897132,"sku":"GS39v2\/ETA2893\/CE6","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2893\/SW330 (GMT) [Sapphire] \/ Coin Edge 6mm \/ Signed S","offer_id":43891679461612,"sku":"GS39v2\/ETA2893\/CE6S","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2893\/SW330 (GMT) [Sapphire] \/ Coin Edge 6mm \/ Signed S in Red","offer_id":43891679494380,"sku":"GS39v2\/ETA2893\/CE6SRed","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2893\/SW330 (GMT) [Sapphire] \/ Coin Edge 7mm \/ No Sign \/ Plain","offer_id":43891650363628,"sku":"GS39v2\/ETA2893\/CE7","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2893\/SW330 (GMT) [Sapphire] \/ Coin Edge 7mm \/ Signed S","offer_id":43891679527148,"sku":"GS39v2\/ETA2893\/CE7S","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2893\/SW330 (GMT) [Sapphire] \/ Coin Edge 7mm \/ Signed S in Red","offer_id":43891679559916,"sku":"GS39v2\/ETA2893\/CE7SRed","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2893\/SW330 (GMT) [Sapphire] \/ Knurled 6mm \/ No Sign \/ Plain","offer_id":43891650396396,"sku":"GS39v2\/ETA2893\/K6","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2893\/SW330 (GMT) [Sapphire] \/ Knurled 6mm \/ Signed S","offer_id":43891679592684,"sku":"GS39v2\/ETA2893\/K6S","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2893\/SW330 (GMT) [Sapphire] \/ Knurled 6mm \/ Signed S in Red","offer_id":43891679625452,"sku":"GS39v2\/ETA2893\/K6SRed","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2893\/SW330 (GMT) [Sapphire] \/ Knurled 7mm \/ No Sign \/ Plain","offer_id":43891650429164,"sku":"GS39v2\/ETA2893\/K7","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2893\/SW330 (GMT) [Sapphire] \/ Knurled 7mm \/ Signed S","offer_id":43891679658220,"sku":"GS39v2\/ETA2893\/K7S","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"ETA2893\/SW330 (GMT) [Sapphire] \/ Knurled 7mm \/ Signed S in Red","offer_id":43891679690988,"sku":"GS39v2\/ETA2893\/K7SRed","price":165.0,"currency_code":"SGD","in_stock":false},{"title":"Fits All [Sapphire] \/ Coin Edge 6mm \/ No Sign \/ Plain","offer_id":43891634929900,"sku":"GS39v2\/FitsAll\/CE6","price":249.0,"currency_code":"SGD","in_stock":false},{"title":"Fits All [Sapphire] \/ Coin Edge 6mm \/ Signed S","offer_id":43891679723756,"sku":"GS39v2\/FitsAll\/CE6S","price":249.0,"currency_code":"SGD","in_stock":false},{"title":"Fits All [Sapphire] \/ Coin Edge 6mm \/ Signed S in Red","offer_id":43891679756524,"sku":"GS39v2\/FitsAll\/CE6SRed","price":249.0,"currency_code":"SGD","in_stock":false},{"title":"Fits All [Sapphire] \/ Coin Edge 7mm \/ No Sign \/ Plain","offer_id":43891650461932,"sku":"GS39v2\/FitsAll\/CE7","price":249.0,"currency_code":"SGD","in_stock":false},{"title":"Fits All [Sapphire] \/ Coin Edge 7mm \/ Signed S","offer_id":43891679789292,"sku":"GS39v2\/FitsAll\/CE7S","price":249.0,"currency_code":"SGD","in_stock":false},{"title":"Fits All [Sapphire] \/ Coin Edge 7mm \/ Signed S in Red","offer_id":43891679822060,"sku":"GS39v2\/FitsAll\/CE7SRed","price":249.0,"currency_code":"SGD","in_stock":false},{"title":"Fits All [Sapphire] \/ Knurled 6mm \/ No Sign \/ Plain","offer_id":43891650494700,"sku":"GS39v2\/FitsAll\/K6","price":249.0,"currency_code":"SGD","in_stock":false},{"title":"Fits All [Sapphire] \/ Knurled 6mm \/ Signed S","offer_id":43891679854828,"sku":"GS39v2\/FitsAll\/K6S","price":249.0,"currency_code":"SGD","in_stock":false},{"title":"Fits All [Sapphire] \/ Knurled 6mm \/ Signed S in Red","offer_id":43891679887596,"sku":"GS39v2\/FitsAll\/K6SRed","price":249.0,"currency_code":"SGD","in_stock":false},{"title":"Fits All [Sapphire] \/ Knurled 7mm \/ No Sign \/ Plain","offer_id":43891650527468,"sku":"GS39v2\/FitsAll\/K7","price":249.0,"currency_code":"SGD","in_stock":false},{"title":"Fits All [Sapphire] \/ Knurled 7mm \/ Signed S","offer_id":43891679920364,"sku":"GS39v2\/FitsAll\/K7S","price":249.0,"currency_code":"SGD","in_stock":false},{"title":"Fits All [Sapphire] \/ Knurled 7mm \/ Signed S in Red","offer_id":43891679953132,"sku":"GS39v2\/FitsAll\/K7Red","price":249.0,"currency_code":"SGD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/GS-Watch-Case-39mm-v2-NH34-Ready-NH-Solid-Coin-Edge-6mm-No-Sign-Plain-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1689794188"},{"product_id":"explorer-watch-case-36mm-ultra-thin-edition","title":"Explorer 36mm — Ultra Thin Watch Case","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe Explorer. Reborn Ultra Thin. 36mm of polished restraint.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe Explorer is the watch that taught the world a sports watch could wear a suit. We've reinterpreted that silhouette at 36mm — the proportion that defined the archetype before the modern catalogue drifted larger — and built it on the Ultra Thin Edition architecture so it sits on the wrist the way the original was meant to.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe latest production run finishes the front lugs in full polish, replacing the earlier brushed treatment. The result is a more refined, more luxurious read under the light — the case body now plays the same finishing language as the bezel and crown.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAt 9.96mm thick with the solid caseback, this is one of the slimmest 36mm Explorer-style cases built for an NH movement — and it ships ready to mod with the SKX013 chapter ring + 28.5mm dial ecosystem you already know.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eSapphire pre-installed. Ready to assemble.\u003c\/strong\u003e\u003cbr\u003eThe flat sapphire crystal ships \u003cstrong\u003epre-installed and aligned\u003c\/strong\u003e at our workshop — no crystal-pressing required. You pick a caseback, choose a crown to match your dial, add the chapter ring, dial, hands and movement, and you have a complete watch.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eWears 36, looks classic.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e36mm case diameter, 43mm lug-to-lug, 20mm lug width. The proportions that made the original Explorer the benchmark dress-sport watch — restored.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eGenuinely thin.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e9.96mm total thickness with the solid caseback. The NH movement is 7.59mm tall on its own — meaning the sapphire, case body, and hands clearance combined add up to just 2.37mm.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003ePolished front lugs, latest revision.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eThe current batch finishes the front lugs in full polish — a more refined read than the previous brushed treatment, and consistent with the bezel and crown finishing.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eBuilt on the SKX013 ecosystem.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eAccepts our 28.5mm dials, SKX013-spec chapter rings, SKX013 crowns, and NH movement-compatible hands. The full mod-parts library, ready to pair.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 10px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCaseback\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eTotal Thickness\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eWater Resistance\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eSolid\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · HEADLINE BUILD\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e\u003cstrong\u003e9.96mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eThe thinnest build. Maximum slimness on the wrist.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eSapphire\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e10.9mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eWhen you want to show off the NH movement, bridge, and rotor.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eThe Solid caseback is the headline build at 9.96mm. The Sapphire caseback adds just under a millimetre in exchange for a window onto the movement — pick by whether you'd rather have the slimmest profile or the open view.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eCrown.\u003c\/strong\u003e The Explorer 36mm accepts SKX013-spec crowns. Pick the style and signature that fits your build — we stock coin-edge, knurled, onion, diamond, and signed crown options. \u003ca href=\"\/collections\/crowns\/skx013?sort_by=manual\" title=\"SKX013 crowns\" target=\"_blank\"\u003eBrowse compatible crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case requires a \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it, the dial sits too low and hands won't clear. The case \u003cstrong\u003efits both normal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, choose ultra thin for clearance. If flat-printed, either works. \u003cstrong\u003eWhen in doubt, ultra thin is the safer default.\u003c\/strong\u003e \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" title=\"SKX013-compatible chapter rings\" target=\"_blank\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #fff5f5; padding: 18px; border-left: 4px solid #ff2a00; margin-top: 12px;\"\u003e\n\u003cp\u003e\u003cstrong style=\"color: #ff2a00;\"\u003e\u003cspan class=\"glyphicon glyphicon-warning-sign\"\u003e\u003c\/span\u003e For experienced modders only — TYPE M movements only\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0; color: #7a1f1f;\"\u003e\u003cem\u003eThis case fits \u003cstrong\u003eTYPE M\u003c\/strong\u003e versions of NH35, NH36, NH38, NH70, NH71, NH72 only. \u003cstrong\u003eTYPE L will NOT fit.\u003c\/strong\u003e Due to tight clearance between hands and sapphire, this case is recommended only for professional watchmakers and experienced modders.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 36mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 9.96mm (Solid Caseback) \/ 10.9mm (Sapphire Caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 43mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Finishing\u003c\/strong\u003e Polished front lugs (latest revision), brushed top surfaces\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Flat sapphire with clear anti-reflective coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 29.5mm x 1mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e TYPE M: NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrowns\u003c\/strong\u003e SKX013-spec (sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets\u003c\/strong\u003e 20mm lug — all Lucius Atelier bracelets compatible\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSolid \u0026amp; Sapphire Caseback\u003c\/strong\u003e 100m \/ 10 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? Here's everything you'll need for a complete, functioning watch — in the order you'd actually assemble it.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Explorer 36mm case body with the flat AR-coated sapphire crystal pre-fitted, plus your selected caseback (Solid or Sapphire). That's the foundation. Everything below is what you'll add to make a wrist-ready watch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 5 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e — required first. The chapter ring seats the dial at the correct height; without it, the dial sits too low and the hands won't clear.\u003cbr\u003e\u003cem\u003e(SKX013-spec — sold on a separate page. See the \"sold separately\" panel above for normal vs ultra thin guidance.)\u003c\/em\u003e\u003cbr\u003e\u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\" title=\"SKX013-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e — SKX013-spec options. Pick a style and signature that fits your build — coin-edge, knurled, onion, diamond, or signed.\u003cbr\u003e\u003cem\u003e(Sold on a separate page.)\u003c\/em\u003e\u003cbr\u003e\u003ca href=\"\/collections\/crowns\/skx013?sort_by=manual\" target=\"_blank\" title=\"SKX013 crowns\"\u003eBrowse compatible crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — the face of the watch. The biggest aesthetic choice you'll make. Match it to your chosen movement (date \/ day+date \/ no-date dial).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired with your dial. Most modders match lume colour across both hands and dial markers (BGW9 white-blue, C3 green, etc.). Our Swiss Super-LumiNova® BGW9 hands pair especially well with the Explorer silhouette.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH35 (date), NH36 (day+date), NH38 (no date), or source your own. The movement is the engine of the watch.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional finishing touches:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelet or strap\u003c\/strong\u003e \u003cem\u003e(20mm lug)\u003c\/em\u003e — fit any 20mm bracelet or strap from our catalogue, plus custom shell cordovan \/ full-grain cowhide leather straps.\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDecorated bridge + rotor\u003c\/strong\u003e \u003cem\u003e(only visible with sapphire caseback)\u003c\/em\u003e — replace the stock NH movement bridge and rotor with our Côtes de Genève decorated set, viewable through the sapphire caseback. Note: our bridges fit only our rotors (not OEM Seiko rotors), so they're chosen as a pair. \u003cem\u003eRecommended for experienced modders only — or tick Assemble Watch below and we'll handle it.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTick the \u003cstrong\u003eAssemble Watch (+SGD $50)\u003c\/strong\u003e option above on this page and we'll handle the full build in our Singapore workshop — case fitting, movement seating, crown alignment, caseback press, function check, and decorated bridge + rotor installation if you've added those.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches require \u003cstrong\u003e2–5 business days of workshop time\u003c\/strong\u003e before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body in 316L Stainless Steel (with pre-fitted flat AR-coated sapphire crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x NH Caseback (Solid or Sapphire, per selection)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\" href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Solid","offer_id":43924168245484,"sku":"EC36UT\/NH.Solid","price":120.0,"currency_code":"SGD","in_stock":true},{"title":"Sapphire","offer_id":43924168605932,"sku":"EC36UT\/NH.Sapp","price":145.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/Explorer-Watch-Case-36mm-ULTRA-THIN-EDITION-Solid-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1757790922"},{"product_id":"explorer-watch-case-36mm-ultra-thin-dlc-black-edition","title":"Explorer 36mm DLC Black — Ultra Thin Watch Case","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe Explorer. Reborn Ultra Thin. Coated in DLC Black.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe Explorer is the watch that taught the world a sports watch could wear a suit. We've reinterpreted that silhouette at 36mm — the proportion that defined the archetype before the modern catalogue drifted larger — and built it on the Ultra Thin Edition architecture so it sits on the wrist the way the original was meant to.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe difference here is the finish. Every visible exterior of the case body is coated in \u003cstrong\u003eDLC black\u003c\/strong\u003e — Diamond-Like Carbon, the hardest coating commonly available on watch cases. Most \"black\" mod cases on the market use PVD, which is a soft coating that scratches and rubs off with daily wear. DLC doesn't. It's roughly \u003cstrong\u003efive times harder than the 316L stainless steel underneath\u003c\/strong\u003e, and it stays that way through years of contact with belt buckles, desk edges, and door frames. DLC cases are uncommon in the modding world for one reason — cost. The coating process is significantly more expensive than PVD. We do it anyway, because a case worth building is a case worth protecting.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAt 9.96mm thick with the solid caseback, this is one of the slimmest 36mm Explorer-style cases built for an NH movement — and it ships ready to mod with the SKX013 chapter ring + 28.5mm dial ecosystem you already know.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eShips complete with sapphire, caseback, and screw-down crown.\u003c\/strong\u003e\u003cbr\u003eThe flat sapphire crystal ships \u003cstrong\u003epre-installed and aligned\u003c\/strong\u003e at our workshop, with your selected caseback and screw-down crown \u003cstrong\u003eincluded\u003c\/strong\u003e. Pick a chapter ring for your dial, add dial + hands + movement, and you have a complete watch — built on the most scratch-resistant coating commonly available on watch cases.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eWears 36, looks classic.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e36mm case diameter, 43mm lug-to-lug, 20mm lug width. The proportions that made the original Explorer the benchmark dress-sport watch — restored, in stealth black.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eGenuinely thin.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e9.96mm total thickness with the solid caseback. The NH movement is 7.59mm tall on its own — meaning the sapphire, case body, and hands clearance combined add up to just 2.37mm.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eDLC, not PVD.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eDiamond-Like Carbon coating — 5× harder than steel, far more scratch-resistant than the PVD coatings used on most \"black\" mod cases. It doesn't rub off. It doesn't fade. You'll wear it harder than you'd dare wear a PVD case.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eBuilt on the SKX013 ecosystem.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eAccepts our 28.5mm dials, SKX013-spec chapter rings, and NH movement-compatible hands. The full mod-parts library, ready to pair.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 10px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCaseback\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eTotal Thickness\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eWater Resistance\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eSolid\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · HEADLINE BUILD\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e\u003cstrong\u003e9.96mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eThe thinnest profile — pure stealth black on the wrist\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eSapphire\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e10.9mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eMovement display — show off the rotor through the back\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eThe solid caseback is the headline build — this is the case at its slimmest. The sapphire caseback adds slight thickness in exchange for a view of the NH movement. Both casebacks are uncoated steel — see What's Included below.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case requires a \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it, the dial sits too low and hands won't clear. The case \u003cstrong\u003efits both normal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, choose ultra thin for clearance. If flat-printed, either works. \u003cstrong\u003eWhen in doubt, ultra thin is the safer default.\u003c\/strong\u003e \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" title=\"SKX013-compatible chapter rings\" target=\"_blank\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin-bottom: 0; margin-top: 10px;\"\u003e\u003cem\u003eThe case ships complete with sapphire crystal, your selected caseback, and your selected screw-down crown — you do not need to buy a crown separately for this case.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #fff5f5; padding: 18px; border-left: 4px solid #ff2a00; margin-top: 12px;\"\u003e\n\u003cp\u003e\u003cstrong style=\"color: #ff2a00;\"\u003e\u003cspan class=\"glyphicon glyphicon-warning-sign\"\u003e\u003c\/span\u003e For experienced modders only — TYPE M movements only\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0; color: #7a1f1f;\"\u003e\u003cem\u003eThis case fits \u003cstrong\u003eTYPE M\u003c\/strong\u003e versions of NH35, NH36, NH38, NH70, NH71, NH72 only. \u003cstrong\u003eTYPE L will NOT fit.\u003c\/strong\u003e Due to tight clearance between hands and sapphire, this case is recommended only for professional watchmakers and experienced modders.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 36mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 9.96mm (Solid Caseback) \/ 10.9mm (Sapphire Caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 43mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e Diamond-Like Carbon (DLC) Black on the case body — approximately 5× the hardness of 316L stainless steel. Caseback is supplied uncoated (see What's Included).\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Finishing\u003c\/strong\u003e Polished front lugs, brushed top surfaces — under the DLC coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Flat sapphire with clear anti-reflective coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 29.5mm x 1mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw-down, included (Coin Edge or Knurled, 6mm or 7mm, Sterile or Signed S — selected above)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e TYPE M: NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets\u003c\/strong\u003e 20mm lug — \u003ca href=\"\/products\/oyster-bracelet-20-18mm-mid-polished-dlc-black-edition\" title=\"Oyster Bracelet 20\/18mm DLC Black\" target=\"_blank\"\u003eOyster Bracelet in DLC Black \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e recommended for a fully-DLC build. Also fits all Lucius Atelier 20mm bracelets, or pair with black\/earth-tone leather for a strap build.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSolid \u0026amp; Sapphire Caseback\u003c\/strong\u003e 100m \/ 10 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? Here's everything you'll need for a complete, functioning watch — in the order you'd actually assemble it.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Explorer 36mm DLC Black case body with the flat AR-coated sapphire crystal pre-fitted, your selected caseback (Solid or Sapphire), and your selected screw-down crown (Coin Edge or Knurled, 6mm or 7mm, Sterile or Signed S). That's the foundation. Everything below is what you'll add to make a wrist-ready watch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 4 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e — required first. The chapter ring seats the dial at the correct height; without it, the dial sits too low and the hands won't clear.\u003cbr\u003e\u003cem\u003e(SKX013-spec — sold on a separate page. See the \"sold separately\" panel above for normal vs ultra thin guidance.)\u003c\/em\u003e\u003cbr\u003e\u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\" title=\"SKX013-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — the face of the watch. The biggest aesthetic choice you'll make. Match it to your chosen movement (date \/ day+date \/ no-date dial). For the DLC Black case, most builders pair with dark or high-contrast dials (matte black, deep blue, military green) and BGW9 or C3 lume for visibility against the stealth case.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired with your dial. Most modders match lume colour across both hands and dial markers (BGW9 white-blue, C3 green, etc.). Our Swiss Super-LumiNova® BGW9 hands pair especially well with the Explorer silhouette.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH35 (date), NH36 (day+date), NH38 (no date), or source your own. The movement is the engine of the watch.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional finishing touches:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelet or strap\u003c\/strong\u003e \u003cem\u003e(20mm lug)\u003c\/em\u003e — fit any 20mm bracelet or strap from our catalogue, plus custom shell cordovan \/ full-grain cowhide leather straps. Black or earth-tone leather pairs naturally with DLC.\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDecorated bridge + rotor\u003c\/strong\u003e \u003cem\u003e(only visible with sapphire caseback)\u003c\/em\u003e — replace the stock NH movement bridge and rotor with our Côtes de Genève decorated set, viewable through the sapphire caseback. Note: our bridges fit only our rotors (not OEM Seiko rotors), so they're chosen as a pair. \u003cem\u003eRecommended for experienced modders only — or tick Assemble Watch below and we'll handle it.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTick the \u003cstrong\u003eAssemble Watch (+SGD $50)\u003c\/strong\u003e option above on this page and we'll handle the full build in our Singapore workshop — case fitting, movement seating, crown alignment, caseback press, function check, and decorated bridge + rotor installation if you've added those.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches require \u003cstrong\u003e2–5 business days of workshop time\u003c\/strong\u003e before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body in 316L Stainless Steel with DLC Black coating (with pre-fitted flat AR-coated sapphire crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Screw-down crown (Coin Edge or Knurled, 6mm or 7mm, Sterile or Signed S — per selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x NH Caseback — uncoated steel (Solid or Sapphire, per selection)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eThe caseback is supplied in uncoated stainless steel — it sits against the wrist and is not visible when worn, so it's left uncoated. The case body, bezel and lugs all carry the full DLC black coating.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\" title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Solid \/ Coin Edge 6mm \/ Sterile","offer_id":44172767101164,"sku":"EC36UTDLC\/NH.Solid\/CE6","price":175.0,"currency_code":"SGD","in_stock":true},{"title":"Solid \/ Coin Edge 6mm \/ Signed S","offer_id":44172767068396,"sku":"EC36UTDLC\/NH.Solid\/CE6S","price":175.0,"currency_code":"SGD","in_stock":true},{"title":"Solid \/ Coin Edge 7mm \/ Sterile","offer_id":44172767199468,"sku":"EC36UTDLC\/NH.Solid\/CE7","price":175.0,"currency_code":"SGD","in_stock":true},{"title":"Solid \/ Coin Edge 7mm \/ Signed S","offer_id":44172767166700,"sku":"EC36UTDLC\/NH.Solid\/CE7S","price":175.0,"currency_code":"SGD","in_stock":true},{"title":"Solid \/ Knurled 6mm \/ Sterile","offer_id":44172767297772,"sku":"EC36UTDLC\/NH.Solid\/K6","price":175.0,"currency_code":"SGD","in_stock":true},{"title":"Solid \/ Knurled 6mm \/ Signed S","offer_id":44172767265004,"sku":"EC36UTDLC\/NH.Solid\/K6S","price":175.0,"currency_code":"SGD","in_stock":true},{"title":"Solid \/ Knurled 7mm \/ Sterile","offer_id":44172767396076,"sku":"EC36UTDLC\/NH.Solid\/K7","price":175.0,"currency_code":"SGD","in_stock":true},{"title":"Solid \/ Knurled 7mm \/ Signed S","offer_id":44172767363308,"sku":"EC36UTDLC\/NH.Solid\/K7S","price":175.0,"currency_code":"SGD","in_stock":true},{"title":"Sapphire \/ Coin Edge 6mm \/ Sterile","offer_id":44172767494380,"sku":"EC36UTDLC\/NH.Sapp\/CE6","price":195.0,"currency_code":"SGD","in_stock":true},{"title":"Sapphire \/ Coin Edge 6mm \/ Signed S","offer_id":44172767461612,"sku":"EC36UTDLC\/NH.Sapp\/CE6S","price":195.0,"currency_code":"SGD","in_stock":true},{"title":"Sapphire \/ Coin Edge 7mm \/ Sterile","offer_id":44172767592684,"sku":"EC36UTDLC\/NH.Sapp\/CE7","price":195.0,"currency_code":"SGD","in_stock":true},{"title":"Sapphire \/ Coin Edge 7mm \/ Signed S","offer_id":44172767559916,"sku":"EC36UTDLC\/NH.Sapp\/CE7S","price":195.0,"currency_code":"SGD","in_stock":true},{"title":"Sapphire \/ Knurled 6mm \/ Sterile","offer_id":44172767690988,"sku":"EC36UTDLC\/NH.Sapp\/K6","price":195.0,"currency_code":"SGD","in_stock":true},{"title":"Sapphire \/ Knurled 6mm \/ Signed S","offer_id":44172767658220,"sku":"EC36UTDLC\/NH.Sapp\/K6S","price":195.0,"currency_code":"SGD","in_stock":true},{"title":"Sapphire \/ Knurled 7mm \/ Sterile","offer_id":44172767789292,"sku":"EC36UTDLC\/NH.Sapp\/K7","price":195.0,"currency_code":"SGD","in_stock":true},{"title":"Sapphire \/ Knurled 7mm \/ Signed S","offer_id":44172767756524,"sku":"EC36UTDLC\/NH.Sapp\/K7S","price":195.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/Explorer-Watch-Case-36mm-ULTRA-THIN-DLC-BLACK-EDITION-Solid-Coin-Edge-6mm-Sterile-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1701458293"},{"product_id":"explorer-watch-case-36mm-ultra-thin-titanium-sandblasted-edition","title":"Explorer 36mm Titanium Sandblasted — Ultra Thin Watch Case","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe Explorer. Reborn Ultra Thin. Finished in Sandblasted Titanium.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe Explorer is the watch that taught the world a sports watch could wear a suit. We've reinterpreted that silhouette at 36mm — the proportion that defined the archetype before the modern catalogue drifted larger — and built it on the Ultra Thin Edition architecture so it sits on the wrist the way the original was meant to.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe difference here is the material — and the finish. Every component — case body, crown, and caseback — is machined from \u003cstrong\u003eGrade 4 Titanium\u003c\/strong\u003e, then \u003cstrong\u003efully sandblasted\u003c\/strong\u003e. That choice does two things at once. First, weight: the whole case comes in at \u003cstrong\u003e18.5 grams\u003c\/strong\u003e, roughly \u003cstrong\u003e40% lighter\u003c\/strong\u003e than the same case in 316L steel (30.2 grams). Second, character: where polished titanium can pass for polished steel, sandblasted titanium can't pass for anything else. The matte, non-reflective grey is the finish where titanium \u003cstrong\u003elooks\u003c\/strong\u003e like titanium — quiet, technical, fingerprint-resistant, completely its own thing.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAnd underneath the finish: Grade 4 Titanium is the \u003cstrong\u003estrongest of the commercially pure titanium grades\u003c\/strong\u003e, and it's \u003cstrong\u003eactually harder than 316L stainless steel\u003c\/strong\u003e — more scratch-resistant, more dent-resistant, with the same hypoallergenic and corrosion-resistant properties used in aerospace and medical-grade applications.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAt 9.96mm thick with the solid titanium caseback, this is one of the slimmest 36mm Explorer-style cases built for an NH movement — and it ships ready to mod with the SKX013 chapter ring + 28.5mm dial ecosystem you already know.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eShips complete with sapphire, titanium caseback, and titanium screw-down crown.\u003c\/strong\u003e\u003cbr\u003eThe flat sapphire crystal ships \u003cstrong\u003epre-installed and aligned\u003c\/strong\u003e at our workshop, with the solid titanium caseback and titanium coin-edge crown \u003cstrong\u003eincluded\u003c\/strong\u003e. Pair with our \u003ca href=\"\/products\/skx013-sandblasted-chapter-ring-ultra-thin-edition\" title=\"SKX013 Sandblasted Chapter Ring\" target=\"_blank\"\u003esandblasted chapter ring \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e for finish coherence, add dial + hands + movement, and you have a complete watch built around the lightest 36mm case body in the line.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eWears 36, weighs nothing.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e36mm case diameter, 43mm lug-to-lug, 20mm lug width — and just 18.5 grams complete with sapphire, crown, and caseback. The classic Explorer proportions disappear on the wrist; the titanium build makes them disappear even further.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eGenuinely thin.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e9.96mm total thickness with the solid titanium caseback. The NH movement is 7.59mm tall on its own — meaning the sapphire, case body, and hands clearance combined add up to just 2.37mm.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eSandblasted — titanium that looks like titanium.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eWhere polished titanium reads as polished steel to the eye, sandblasted titanium owns its own identity — matte, non-reflective, quietly technical. It hides fingerprints, catches no glare, and shifts the wear from formal toward tool-watch. The product photos include side-by-side comparisons of sandblasted titanium, polished titanium, and 316L steel for reference.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eHarder than steel, lighter than steel.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eGrade 4 Titanium is the strongest of the commercially pure titanium grades — harder than 316L stainless steel and more scratch-resistant — while weighing 40% less. The trade-off most people expect (lighter = softer) doesn't apply here. It's both.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case requires a \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it, the dial sits too low and hands won't clear. The case \u003cstrong\u003efits both normal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, choose ultra thin for clearance. If flat-printed, either works. \u003cstrong\u003eFor finish coherence with this sandblasted case, we recommend our\u003c\/strong\u003e \u003ca href=\"\/products\/skx013-sandblasted-chapter-ring-ultra-thin-edition\" title=\"SKX013 Sandblasted Chapter Ring\" target=\"_blank\"\u003esandblasted chapter ring \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — the matte finish matches the case body. \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" title=\"SKX013-compatible chapter rings\" target=\"_blank\"\u003eBrowse all compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin-bottom: 0; margin-top: 10px;\"\u003e\u003cem\u003eThe case ships complete with sapphire crystal, solid titanium caseback, and a titanium coin-edge screw-down crown — you do not need to buy a crown or caseback separately for this case.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #fff5f5; padding: 18px; border-left: 4px solid #ff2a00; margin-top: 12px;\"\u003e\n\u003cp\u003e\u003cstrong style=\"color: #ff2a00;\"\u003e\u003cspan class=\"glyphicon glyphicon-warning-sign\"\u003e\u003c\/span\u003e For experienced modders only — TYPE M movements only\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0; color: #7a1f1f;\"\u003e\u003cem\u003eThis case fits \u003cstrong\u003eTYPE M\u003c\/strong\u003e versions of NH35, NH36, NH38, NH70, NH71, NH72 only. \u003cstrong\u003eTYPE L will NOT fit.\u003c\/strong\u003e Due to tight clearance between hands and sapphire, this case is recommended only for professional watchmakers and experienced modders.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 36mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 9.96mm (Solid Caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 43mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Weight\u003c\/strong\u003e 18.5g (complete with sapphire, crown, and caseback) — approximately 40% lighter than the 316L steel sibling at 30.2g\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e Grade 4 Titanium (case, crown, and caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Finishing\u003c\/strong\u003e Fully sandblasted — matte, non-reflective grey\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Flat sapphire with clear anti-reflective coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 29.5mm x 1mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw-down, titanium coin-edge — included\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e TYPE M: NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately) — sandblasted version recommended for finish coherence\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets\u003c\/strong\u003e 20mm lug — fits all our 316L steel and titanium bracelets, but none in our line are sandblasted, so a bracelet creates a finish mismatch with this case body. A leather strap pairs better for finish coherence.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSolid Caseback\u003c\/strong\u003e 100m \/ 10 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? Here's everything you'll need for a complete, functioning watch — in the order you'd actually assemble it.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Explorer 36mm titanium case body with the flat AR-coated sapphire crystal pre-fitted, the solid titanium caseback, and the titanium coin-edge screw-down crown — all in fully sandblasted finish. That's the foundation. Everything below is what you'll add to make a wrist-ready watch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 4 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e — required first. The chapter ring seats the dial at the correct height; without it, the dial sits too low and the hands won't clear.\u003cbr\u003e\u003cem\u003e(SKX013-spec — sold on a separate page. For this sandblasted case, we recommend the sandblasted chapter ring for finish coherence.)\u003c\/em\u003e\u003cbr\u003e\u003ca href=\"\/products\/skx013-sandblasted-chapter-ring-ultra-thin-edition\" target=\"_blank\" title=\"SKX013 Sandblasted Chapter Ring\"\u003eView the sandblasted chapter ring \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e · \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\" title=\"SKX013-compatible chapter rings\"\u003ebrowse all compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — the face of the watch. The biggest aesthetic choice you'll make. Match it to your chosen movement (date \/ day+date \/ no-date dial). For the sandblasted case, matte or military-style dials pair especially well with the tool-watch character.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired with your dial. Most modders match lume colour across both hands and dial markers (BGW9 white-blue, C3 green, etc.). Our Swiss Super-LumiNova® BGW9 hands pair especially well with the Explorer silhouette.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH35 (date), NH36 (day+date), NH38 (no date), or source your own. The movement is the engine of the watch.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional finishing touches:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eStrap\u003c\/strong\u003e \u003cem\u003e(20mm lug)\u003c\/em\u003e — the sandblasted titanium build pairs especially well with luxurious leather. We recommend our \u003ca href=\"\/collections\/straps\" target=\"_blank\" title=\"Shell Cordovan straps\"\u003eshell cordovan straps \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e for a refined wear, plus full-grain cowhide options and military-style nylon for tool-watch builds.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTick the \u003cstrong\u003eAssemble Watch (+SGD $50)\u003c\/strong\u003e option above on this page and we'll handle the full build in our Singapore workshop — case fitting, movement seating, crown alignment, caseback press, and function check.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches require \u003cstrong\u003e2–5 business days of workshop time\u003c\/strong\u003e before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body in Grade 4 Titanium, Fully Sandblasted (with pre-fitted flat AR-coated sapphire crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Titanium Coin-Edge Screw-Down Crown, Sandblasted\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Solid Titanium NH Caseback, Sandblasted\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\" href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Default Title","offer_id":44257954267372,"sku":"EC36UT_TSB","price":195.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/Explorer-Watch-Case-36mm-ULTRA-THIN-EDITION-TITANIUM-SANDBLASTED-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1731179780"},{"product_id":"explorer-watch-case-36mm-ultra-thin-titanium-polished-edition","title":"Explorer 36mm Titanium Polished — Ultra Thin Watch Case","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe Explorer. Reborn Ultra Thin. Built in Grade 4 Titanium.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe Explorer is the watch that taught the world a sports watch could wear a suit. We've reinterpreted that silhouette at 36mm — the proportion that defined the archetype before the modern catalogue drifted larger — and built it on the Ultra Thin Edition architecture so it sits on the wrist the way the original was meant to.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe difference here is the material. Every component — case body, crown, and caseback — is machined from \u003cstrong\u003eGrade 4 Titanium\u003c\/strong\u003e. That choice does two things at once. First, weight: the whole case comes in at \u003cstrong\u003e18.5 grams\u003c\/strong\u003e, roughly \u003cstrong\u003e40% lighter\u003c\/strong\u003e than the same case in 316L steel (30.2 grams). On a 36mm proportion that already wears classically, it disappears on the wrist. Second, and the surprise most people miss: Grade 4 Titanium is the \u003cstrong\u003estrongest of the commercially pure titanium grades\u003c\/strong\u003e, and it's \u003cstrong\u003eactually harder than 316L stainless steel\u003c\/strong\u003e — more scratch-resistant, more dent-resistant, with the same hypoallergenic and corrosion-resistant properties used in aerospace and medical-grade applications.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAt 9.96mm thick with the solid titanium caseback, this is one of the slimmest 36mm Explorer-style cases built for an NH movement — and it ships ready to mod with the SKX013 chapter ring + 28.5mm dial ecosystem you already know.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eShips complete with sapphire, titanium caseback, and titanium screw-down crown.\u003c\/strong\u003e\u003cbr\u003eThe flat sapphire crystal ships \u003cstrong\u003epre-installed and aligned\u003c\/strong\u003e at our workshop, with the solid titanium caseback and titanium coin-edge crown \u003cstrong\u003eincluded\u003c\/strong\u003e. Pick a chapter ring for your dial, add dial + hands + movement, and you have a complete watch — built around the lightest 36mm case body in the line.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eWears 36, weighs nothing.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e36mm case diameter, 43mm lug-to-lug, 20mm lug width — and just 18.5 grams complete with sapphire, crown, and caseback. The classic Explorer proportions disappear on the wrist; the titanium build makes them disappear even further.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eGenuinely thin.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e9.96mm total thickness with the solid titanium caseback. The NH movement is 7.59mm tall on its own — meaning the sapphire, case body, and hands clearance combined add up to just 2.37mm.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eHarder than steel, lighter than steel.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eGrade 4 Titanium is the strongest of the commercially pure titanium grades — harder than 316L stainless steel and more scratch-resistant — while weighing 40% less. The trade-off most people expect (lighter = softer) doesn't apply here. It's both.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003ePolished — visually indistinguishable from steel.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003ePolished Grade 4 Titanium and polished 316L stainless steel are visually identical on the wrist. You get the look and reflectivity of a polished steel case with the weight and properties of titanium. The product photos include side-by-side comparisons of polished titanium, sandblasted titanium, and 316L steel for reference.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case requires a \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it, the dial sits too low and hands won't clear. The case \u003cstrong\u003efits both normal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, choose ultra thin for clearance. If flat-printed, either works. \u003cstrong\u003eWhen in doubt, ultra thin is the safer default.\u003c\/strong\u003e \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" title=\"SKX013-compatible chapter rings\" target=\"_blank\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin-bottom: 0; margin-top: 10px;\"\u003e\u003cem\u003eThe case ships complete with sapphire crystal, solid titanium caseback, and a titanium coin-edge screw-down crown — you do not need to buy a crown or caseback separately for this case.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #fff5f5; padding: 18px; border-left: 4px solid #ff2a00; margin-top: 12px;\"\u003e\n\u003cp\u003e\u003cstrong style=\"color: #ff2a00;\"\u003e\u003cspan class=\"glyphicon glyphicon-warning-sign\"\u003e\u003c\/span\u003e For experienced modders only — TYPE M movements only\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0; color: #7a1f1f;\"\u003e\u003cem\u003eThis case fits \u003cstrong\u003eTYPE M\u003c\/strong\u003e versions of NH35, NH36, NH38, NH70, NH71, NH72 only. \u003cstrong\u003eTYPE L will NOT fit.\u003c\/strong\u003e Due to tight clearance between hands and sapphire, this case is recommended only for professional watchmakers and experienced modders.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 36mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 9.96mm (Solid Caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 43mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Weight\u003c\/strong\u003e 18.5g (complete with sapphire, crown, and caseback) — approximately 40% lighter than the 316L steel sibling at 30.2g\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e Grade 4 Titanium (case, crown, and caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Finishing\u003c\/strong\u003e Polished — visually identical to polished 316L stainless steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Flat sapphire with clear anti-reflective coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 29.5mm x 1mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw-down, titanium coin-edge — included\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e TYPE M: NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets\u003c\/strong\u003e 20mm lug — fits all our 316L steel bracelets; \u003ca href=\"\/products\/seikonaut-bracelet-20-16mm-titanium\" title=\"Seikonaut Bracelet 20\/16mm Titanium\" target=\"_blank\"\u003eSeikonaut Bracelet in Titanium \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e recommended for finish + weight coherence\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSolid Caseback\u003c\/strong\u003e 100m \/ 10 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? Here's everything you'll need for a complete, functioning watch — in the order you'd actually assemble it.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Explorer 36mm titanium case body with the flat AR-coated sapphire crystal pre-fitted, the solid titanium caseback, and the titanium coin-edge screw-down crown. That's the foundation. Everything below is what you'll add to make a wrist-ready watch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 4 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e — required first. The chapter ring seats the dial at the correct height; without it, the dial sits too low and the hands won't clear.\u003cbr\u003e\u003cem\u003e(SKX013-spec — sold on a separate page. See the \"sold separately\" panel above for normal vs ultra thin guidance.)\u003c\/em\u003e\u003cbr\u003e\u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\" title=\"SKX013-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — the face of the watch. The biggest aesthetic choice you'll make. Match it to your chosen movement (date \/ day+date \/ no-date dial).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired with your dial. Most modders match lume colour across both hands and dial markers (BGW9 white-blue, C3 green, etc.). Our Swiss Super-LumiNova® BGW9 hands pair especially well with the Explorer silhouette.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH35 (date), NH36 (day+date), NH38 (no date), or source your own. The movement is the engine of the watch.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional finishing touches:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelet\u003c\/strong\u003e \u003cem\u003e(20mm lug)\u003c\/em\u003e — fits all our 316L steel bracelets, but for a build that's all-titanium end-to-end we recommend our \u003ca href=\"\/products\/seikonaut-bracelet-20-16mm-titanium\" title=\"Seikonaut Bracelet 20\/16mm Titanium\" target=\"_blank\"\u003eSeikonaut Bracelet in Titanium \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e. Matched finish, matched material, matched weight philosophy.\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eStrap\u003c\/strong\u003e \u003cem\u003e(20mm lug)\u003c\/em\u003e — the titanium build pairs especially well with luxurious leather. We recommend our \u003ca href=\"\/collections\/straps\" target=\"_blank\" title=\"Shell Cordovan straps\"\u003eshell cordovan straps \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e for a refined wear, plus full-grain cowhide options for more casual builds.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTick the \u003cstrong\u003eAssemble Watch (+SGD $50)\u003c\/strong\u003e option above on this page and we'll handle the full build in our Singapore workshop — case fitting, movement seating, crown alignment, caseback press, and function check.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches require \u003cstrong\u003e2–5 business days of workshop time\u003c\/strong\u003e before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body in Grade 4 Titanium, Polished (with pre-fitted flat AR-coated sapphire crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Titanium Coin-Edge Screw-Down Crown\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Solid Titanium NH Caseback\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\" href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Default Title","offer_id":44258298134764,"sku":"EC36UT_TP","price":195.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/Explorer-Watch-Case-36mm-ULTRA-THIN-EDITION-TITANIUM-POLISHED-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1743621407"},{"product_id":"pilot-watch-case-34mm-ultra-thin-edition","title":"Pilot 34mm — Ultra Thin NH34-Ready Watch Case","description":"\u003c!-- split --\u003e\n\u003cp style=\"margin:0; padding:0; line-height:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/Pilot_34mm_on_wrist.jpg?v=1729227813\" alt=\"Pilot Watch Case 34mm Ultra Thin on wrist with double-domed sapphire crystal\" style=\"display:block; width:100%; height:auto; margin:0; padding:0; vertical-align:bottom;\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eAn Aviation Classic. Reborn Ultra Thin. Built for GMT.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe \u003cstrong\u003ePilot Watch Case 34mm\u003c\/strong\u003e, part of our Ultra Thin Edition series, is a faithful reinterpretation of the aviation-inspired pilot watch — built around the NH movement and engineered to a profile most pilot-style cases can't reach.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe defining choice is the size. While most modern pilot watches push 40mm and beyond, the 34mm Pilot earns its character precisely by going smaller. It carries the understated elegance of vintage pilot watches from the era when 34mm was a normal men's watch size — proportions that emphasise craftsmanship over wrist-real-estate, and a silhouette that complements rather than dominates the wrist.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe signature element is the \u003cstrong\u003edouble-domed sapphire crystal\u003c\/strong\u003e — a vintage detail that adds 1mm of height over the Explorer 36mm Ultra Thin platform, but earns it back as \u003cstrong\u003eNH34 GMT compatibility\u003c\/strong\u003e. At \u003cstrong\u003e10.96mm\u003c\/strong\u003e with the solid caseback, this is \u003cstrong\u003eamong the smallest and thinnest GMT-capable cases\u003c\/strong\u003e available for the NH movement.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eSapphire pre-installed. Ready to assemble.\u003c\/strong\u003e\u003cbr\u003eThe double-domed sapphire crystal ships \u003cstrong\u003epre-installed and aligned\u003c\/strong\u003e at our workshop — no crystal-pressing required. You add the dial, hands, crown, chapter ring and movement, and you have a complete watch.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eA vintage size, by design.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e34mm is deliberate, not a compromise. It draws on decades of classic pilot watch proportions — the era when 34mm was a standard men's watch size — and delivers a watch that feels balanced on every wrist size, from 6 to 8 inches.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eGenuinely thin.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e10.96mm with the solid caseback. Building a GMT here is the harder ask: the NH34 GMT movement is 7.99mm tall on its own — which leaves barely 3.0mm for the case body, the double-domed sapphire, and hand clearance combined. Tight engineering, with vintage proportions intact.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eGMT-capable — the uncommon build.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eFully NH34-ready. A 34mm GMT pilot watch is an extraordinarily rare combination at any price; we're not aware of another modder-accessible case that does it at this profile.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eThe double-domed signature.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eThe crystal isn't flat — it's double-domed on both surfaces, a vintage detail that nods to early aviation watches where the curved profile shed water and resisted impact. It catches light differently across the face and adds depth to whatever dial you build behind it.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 10px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCaseback\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eTotal Thickness\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eWater Resistance\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eSolid\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · HEADLINE BUILD\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e\u003cstrong\u003e10.96mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eThe thinnest profile — daily wear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eSapphire\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e11.9mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eMovement display — show off the rotor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eThe solid caseback is the headline build — this is the case at its slimmest. The sapphire caseback adds slight thickness in exchange for a view of the NH movement.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eCrown.\u003c\/strong\u003e The crown shown in product photos is for visual reference only. Crowns must be selected above — this case fits our \u003cstrong\u003eSKX-style crowns\u003c\/strong\u003e in coin-edge, knurled, and onion styles, plus our \u003cstrong\u003eGen II\u003c\/strong\u003e crowns. \u003ca href=\"\/collections\/crowns\" title=\"Compatible crowns\" target=\"_blank\"\u003eBrowse compatible crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case requires a \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it, the dial sits too low and hands won't clear. The case \u003cstrong\u003efits both normal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, choose ultra thin for clearance. If flat-printed, either works. \u003cstrong\u003eWhen in doubt, ultra thin is the safer default.\u003c\/strong\u003e \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" title=\"SKX013-compatible chapter rings\" target=\"_blank\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #fff5f5; padding: 18px; border-left: 4px solid #ff2a00; margin-top: 12px;\"\u003e\n\u003cp\u003e\u003cstrong style=\"color: #ff2a00;\"\u003e\u003cspan class=\"glyphicon glyphicon-warning-sign\"\u003e\u003c\/span\u003e For experienced modders only — TYPE M movements only\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px; color: #7a1f1f;\"\u003e\u003cem\u003eThis case fits \u003cstrong\u003eTYPE M\u003c\/strong\u003e versions of NH34, NH35, NH36, NH38, NH70, NH71, NH72 only. \u003cstrong\u003eTYPE L will NOT fit.\u003c\/strong\u003e Due to tight clearance between hands and sapphire, this case is recommended only for professional watchmakers and experienced modders.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0; color: #7a1f1f;\"\u003e\u003cem\u003e\u003cstrong\u003eNH34 \/ GMT builds:\u003c\/strong\u003e for optimal second-hand clearance, the second hand must be under 12mm in length — or use a second-hand cap. Confirm before assembly.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 34mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 10.96mm (Solid Caseback) \/ 11.9mm (Sapphire Caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 43mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw-down — fits SKX-style and Gen II crowns\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Double-domed sapphire with clear anti-reflective coating (both surfaces)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 29.5mm x 1mm x 1.8mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e TYPE M: NH34, NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrowns\u003c\/strong\u003e SKX-style and Gen II\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets\u003c\/strong\u003e 20mm lug — all Lucius Atelier bracelets compatible\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSolid \u0026amp; Sapphire Caseback\u003c\/strong\u003e 100m \/ 10 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? Here's everything you'll need for a complete, functioning watch — in the order you'd actually assemble it.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe case body with pre-installed double-domed sapphire crystal, and your chosen caseback. That's the foundation. Everything below is what you'll add to make a wrist-ready watch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 5 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e — required first. The chapter ring seats the dial at the correct height; without it, the dial sits too low and the hands won't clear.\u003cbr\u003e\u003cem\u003e(SKX013-spec — sold on a separate page. See the \"sold separately\" panel above for normal vs ultra thin guidance.)\u003c\/em\u003e\u003cbr\u003e\u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\" title=\"SKX013-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e — SKX-style (coin-edge, knurled, onion) or Gen II. Pick a style that matches the watch's character; a knurled crown leans tool-watch, an onion crown leans vintage pilot.\u003cbr\u003e\u003cem\u003e(Required to add to cart. Selected from the dropdown above on this page.)\u003c\/em\u003e\u003cbr\u003e\u003ca href=\"\/collections\/crowns\" target=\"_blank\" title=\"Compatible crowns\"\u003eBrowse compatible crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — the face of the watch. The biggest aesthetic choice you'll make. Match it to your chosen movement (date \/ day+date \/ GMT \/ no-date dial). Pilot-style dials with cathedral or syringe hands are a natural pairing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired with your dial. Most modders match lume colour across both hands and dial markers (BGW9 white-blue, C3 green, etc.). For NH34 GMT builds, you'll also need a GMT hand.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH34 (GMT), NH35 (date), NH36 (day+date), NH38 (no date), or source your own. The movement is the engine of the watch.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional finishing touches:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelet or strap\u003c\/strong\u003e \u003cem\u003e(20mm lug)\u003c\/em\u003e — pilot-style builds traditionally pair with leather straps, and we offer shell cordovan and full-grain cowhide options. Lucius Atelier bracelets in oyster, jubilee, president, GS, Seikonaut, and Settimo also all fit a 20mm lug.\n\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDecorated bridge + rotor\u003c\/strong\u003e \u003cem\u003e(only visible with sapphire caseback)\u003c\/em\u003e — replace the stock NH movement bridge and rotor with our Côtes de Genève decorated set, viewable through the sapphire caseback. Note: our bridges fit only our rotors (not OEM Seiko rotors), so they're chosen as a pair. \u003cem\u003eRecommended for experienced modders only — or tick Assemble Watch below and we'll handle it.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTick the \u003cstrong\u003eAssemble Watch (+SGD $50)\u003c\/strong\u003e option above on this page and we'll handle the full build in our Singapore workshop — case fitting, movement seating, crown alignment, caseback press, function check, and decorated bridge + rotor installation if you've added those.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches require \u003cstrong\u003e2–5 business days of workshop time\u003c\/strong\u003e before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body (with pre-installed double-domed sapphire crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x NH Caseback (Solid or Sapphire, per selection)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\" href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Solid","offer_id":45787872428268,"sku":"PC34UT\/NH.Solid","price":120.0,"currency_code":"SGD","in_stock":true},{"title":"Sapphire","offer_id":45787873018092,"sku":"PC34UT\/NH.Sapp","price":145.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/Pilot-Watch-Case-34mm-ULTRA-THIN-EDITION-Solid-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1743966991"},{"product_id":"62gs-watch-case-36mm-ultra-thin-edition-nh34-ready","title":"62GS 36mm — Ultra Thin NH34-Ready Watch Case","description":"\u003c!-- split --\u003e\n\u003cp style=\"margin:0; padding:0; line-height:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/62GS_NH34_GS.SF_Dial.jpg?v=1729227383\" alt=\"62GS Watch Case 36mm Ultra Thin with bezel-less box sapphire crystal and 4 o'clock crown\" style=\"display:block; width:100%; height:auto; margin:0; padding:0; vertical-align:bottom;\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eA Grand Seiko Icon. Reborn Ultra Thin. Built for GMT.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eInspired by the legendary Seiko 62GS, the \u003cstrong\u003e62GS Watch Case 36mm\u003c\/strong\u003e, part of our Ultra Thin Edition series, is a faithful reinterpretation of one of the most recognisable shapes in Japanese horology — rebuilt from the ground up around the NH movement and engineered to a profile most 62GS-style cases can't reach.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eTwo features define the 62GS architecture, and both are present here: a \u003cstrong\u003ebezel-less construction\u003c\/strong\u003e where the crystal seats directly into the case top with no bezel ring, and a \u003cstrong\u003ecrown at 4 o'clock\u003c\/strong\u003e for a clean and symmetrical front profile. The case is finished with a multi-surface treatment — alternating \u003cstrong\u003epolished and brushed planes\u003c\/strong\u003e with sharp, deliberate boundaries — that surpasses the complexity of our standard Explorer and GS cases.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe signature element is the \u003cstrong\u003ebox-shaped sapphire crystal\u003c\/strong\u003e — precision-cut with diamond tools at \u003cstrong\u003e1.4mm thick\u003c\/strong\u003e, raised and curved to honour the original 62GS profile. It's also \u003cstrong\u003ecut to seat the SKX013-spec chapter ring within the crystal itself\u003c\/strong\u003e — the chapter ring lives inside the box sapphire, not under it. This is by far the hardest crystal we produce: thicker than our flat sapphires to absorb impact (the bezel-less construction leaves it structurally exposed), and shaped with internal precision to receive the chapter ring. It is our most advanced and highest-grade sapphire to date.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe other engineering feat: \u003cstrong\u003eNH34 GMT compatibility\u003c\/strong\u003e. The case is fully NH34-ready — and at 11.3mm with the solid caseback, this is one of the thinnest 62GS-style cases available for a GMT NH movement.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eBox sapphire pre-installed. Ready to assemble.\u003c\/strong\u003e\u003cbr\u003eThe box-shaped sapphire crystal ships \u003cstrong\u003epre-installed and aligned\u003c\/strong\u003e at our workshop — diamond-cut precision is the hardest part of a 62GS build, and we've handled it. You add the dial, hands, crown, chapter ring and movement, and you have a complete watch.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eBezel-less by design.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eNo bezel ring — the box-shaped sapphire seats directly into the case top, creating an uninterrupted profile from lug to lug. It's the silhouette that made the 62GS iconic in the first place, and it changes how light moves across the case.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eGenuinely thin — with a deliberate tradeoff.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e11.3mm with the solid caseback. The NH34 GMT movement alone is 7.99mm tall, leaving 3.6mm for everything else — and we deliberately spent most of that on a thicker, \u003cstrong\u003e1.4mm box-shaped sapphire\u003c\/strong\u003e. Bezel-less construction leaves the crystal structurally exposed with no bezel ring to protect it, so the sapphire has to carry that load itself. The result is a 62GS that honours the original silhouette without compromising on durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eGMT-capable — the uncommon build.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eFully NH34-ready. Most 62GS-style cases can't take a GMT movement; this one does, without losing the slim profile. A thin 62GS GMT is a build few modders can make.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eMulti-surface finishing.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e316L steel with alternating polished and brushed planes — mirror-bright facets meeting satin surfaces at sharp, deliberate boundaries. The finish surpasses our standard Explorer and GS cases in complexity, and it's what gives this case its dress-sport character.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 10px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCaseback\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eTotal Thickness\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eWater Resistance\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eSolid\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · HEADLINE BUILD\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e\u003cstrong\u003e11.3mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eThe thinnest profile — daily wear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eSapphire\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e12.2mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eMovement display — show off the rotor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eThe solid caseback is the headline build — this is the case at its slimmest. The sapphire caseback adds slight thickness in exchange for a view of the NH movement.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eCrown.\u003c\/strong\u003e The crown shown in product photos is for visual reference only. Crowns must be selected above — this case fits our \u003cstrong\u003e6mm Gen II and 7mm Diamond\u003c\/strong\u003e crown styles. \u003ca href=\"\/collections\/crowns\" title=\"Compatible crowns\" target=\"_blank\"\u003eBrowse compatible crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case requires a \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it, the dial sits too low and hands won't clear. The case \u003cstrong\u003efits both normal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, choose ultra thin for clearance. If flat-printed, either works. \u003cstrong\u003eWhen in doubt, ultra thin is the safer default.\u003c\/strong\u003e \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" title=\"SKX013-compatible chapter rings\" target=\"_blank\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #fff5f5; padding: 18px; border-left: 4px solid #ff2a00; margin-top: 12px;\"\u003e\n\u003cp\u003e\u003cstrong style=\"color: #ff2a00;\"\u003e\u003cspan class=\"glyphicon glyphicon-warning-sign\"\u003e\u003c\/span\u003e For experienced modders only — TYPE M movements only\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px; color: #7a1f1f;\"\u003e\u003cem\u003eThis case fits \u003cstrong\u003eTYPE M\u003c\/strong\u003e versions of NH34, NH35, NH36, NH38, NH70, NH71, NH72 only. \u003cstrong\u003eTYPE L will NOT fit.\u003c\/strong\u003e Due to tight clearance between hands and sapphire, this case is recommended only for professional watchmakers and experienced modders.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0; color: #7a1f1f;\"\u003e\u003cem\u003e\u003cstrong\u003eNH34 \/ GMT builds:\u003c\/strong\u003e for optimal second-hand clearance, the second hand must be under 12mm in length — or use a second-hand cap. Confirm before assembly.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 36mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 11.3mm (Solid Caseback) \/ 12.2mm (Sapphire Caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 43mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Finishing\u003c\/strong\u003e Multi-surface — alternating polished and brushed planes with sharp boundaries\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e Bezel-less — crystal seats directly into case top\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown Position\u003c\/strong\u003e 4 o'clock\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw-down — fits 6mm Gen II and 7mm Diamond crowns\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Box-shaped sapphire (1.4mm thick, internally cut to seat the chapter ring) with clear anti-reflective coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 31mm x 4.56mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e TYPE M: NH34, NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately) — seats inside the box sapphire\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrowns\u003c\/strong\u003e 6mm Gen II or 7mm Diamond\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets\u003c\/strong\u003e 20mm lug — all Lucius Atelier bracelets compatible\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSolid \u0026amp; Sapphire Caseback\u003c\/strong\u003e 100m \/ 10 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? Here's everything you'll need for a complete, functioning watch — in the order you'd actually assemble it.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe case body with pre-installed box-shaped sapphire crystal, and your chosen caseback. That's the foundation. Everything below is what you'll add to make a wrist-ready watch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 5 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e — required first. The chapter ring seats inside the box sapphire, not below it — without it, the dial sits too low and the hands won't clear.\u003cbr\u003e\u003cem\u003e(SKX013-spec — sold on a separate page. See the \"sold separately\" panel above for normal vs ultra thin guidance.)\u003c\/em\u003e\u003cbr\u003e\u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\" title=\"SKX013-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e — 6mm Gen II or 7mm Diamond. Pick a style that matches the watch's character.\u003cbr\u003e\u003cem\u003e(Required to add to cart. Selected from the dropdown above on this page.)\u003c\/em\u003e\u003cbr\u003e\u003ca href=\"\/collections\/crowns\" target=\"_blank\" title=\"Compatible crowns\"\u003eBrowse compatible crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — the face of the watch. The biggest aesthetic choice you'll make. Match it to your chosen movement (date \/ day+date \/ GMT \/ no-date dial).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired with your dial. Most modders match lume colour across both hands and dial markers (BGW9 white-blue, C3 green, etc.). For NH34 GMT builds, you'll also need a GMT hand.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH34 (GMT), NH35 (date), NH36 (day+date), NH38 (no date), or source your own. The movement is the engine of the watch.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional finishing touches:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelet or strap\u003c\/strong\u003e \u003cem\u003e(20mm lug)\u003c\/em\u003e — choose from Lucius Atelier oyster, jubilee, president, GS, Seikonaut, Settimo, or more designs, plus custom shell cordovan \/ full-grain cowhide leather straps.\n\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDecorated bridge + rotor\u003c\/strong\u003e \u003cem\u003e(only visible with sapphire caseback)\u003c\/em\u003e — replace the stock NH movement bridge and rotor with our Côtes de Genève decorated set, viewable through the sapphire caseback. Note: our bridges fit only our rotors (not OEM Seiko rotors), so they're chosen as a pair. \u003cem\u003eRecommended for experienced modders only — or tick Assemble Watch below and we'll handle it.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTick the \u003cstrong\u003eAssemble Watch (+SGD $50)\u003c\/strong\u003e option above on this page and we'll handle the full build in our Singapore workshop — case fitting, movement seating, crown alignment, caseback press, function check, and decorated bridge + rotor installation if you've added those.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches require \u003cstrong\u003e2–5 business days of workshop time\u003c\/strong\u003e before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body (with pre-installed box-shaped sapphire crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x NH Caseback (Solid or Sapphire, per selection)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\" href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Solid","offer_id":46058665476332,"sku":"62GS36UT\/NH.Solid","price":174.0,"currency_code":"SGD","in_stock":true},{"title":"Sapphire","offer_id":46058665509100,"sku":"62GS36UT\/NH.Sapp","price":199.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/62GS-Watch-Case-36mm-ULTRA-THIN-EDITION-NH34-Ready-Solid-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1729279002"},{"product_id":"seikonaut-watch-case-38mm-ultra-thin-edition","title":"Seikonaut 38mm — Ultra Thin Watch Case","description":"\u003c!-- split --\u003e\n\u003cdiv style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\" class=\"row\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eA Compact Powerhouse. Reborn Ultra Thin. Big Presence.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eIntroducing the \u003cstrong\u003eSeikonaut 38mm\u003c\/strong\u003e, part of our Ultra Thin Edition series — an iconic reinterpretation of a legendary sports-luxury silhouette, now engineered to be among the \u003cstrong\u003ethinnest NH-compatible watch cases\u003c\/strong\u003e ever made.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe Seikonaut aesthetic — defined by its angular case geometry, sculpted flanks, and sporty elegance — has achieved cult status in the watch modding world. Coveted for its versatility and bold wrist presence, it blends refined design with everyday wearability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eWhile the bezel measures 38mm, the case tells a bigger story. Factoring in the flared side flanks, the full case width reaches \u003cstrong\u003e42mm\u003c\/strong\u003e, and with a 7mm crown installed, approximately \u003cstrong\u003e44mm\u003c\/strong\u003e. A commanding presence that still wears balanced — a bold statement piece that looks equally at home on small and large wrists.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eBuilt around your choices.\u003c\/strong\u003e This is a case to build on. You choose the crown, the chapter ring, the dial, the hands and the movement — and because every Lucius Atelier case shares the same \u003cstrong\u003e28.5mm dial standard\u003c\/strong\u003e, the parts you'd buy for a Bauhaus 33 or an Explorer 36 fit the Seikonaut too. One parts ecosystem, one set of tolerances. The flat sapphire crystal is the one thing already done for you — it ships \u003cstrong\u003epre-installed and aligned\u003c\/strong\u003e at our workshop, so there's no crystal-pressing at your bench.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eWears 38, lives bigger.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eBezel diameter 38mm, full case width 42mm with the flared flanks, around 44mm with a 7mm crown. Lug-to-lug 47mm, lug width 20mm. A bold sports-luxury silhouette on a compact canvas.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eGenuinely thin.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e10.0mm with the solid caseback. The engineering behind that number: a standard NH movement is 7.59mm tall on its own — which leaves barely 2.4mm for the crystal, case walls, and hand clearance combined. Tight engineering.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eBuilt in 316L steel.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eCrafted from robust 316L stainless steel with a sleek brushed finish — enduring durability, tool-watch presence. Choose your preferred 7mm crown style: coin-edge, knurled, or onion.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eBracelet, your call.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eThe 20mm lug takes any standard 20mm strap or bracelet. We recommend our \u003ca title=\"Seikonaut Bracelet 20\/16mm\" href=\"\/products\/seikonaut-bracelet-20-16mm\" target=\"_blank\"\u003eSeikonaut Bracelet 20\/16mm \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — a sculpted 316L bracelet engineered around this exact lug profile — but every other Lucius Atelier bracelet fits too.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003ctable style=\"border-collapse: collapse; margin-top: 10px;\" width=\"100%\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCaseback\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eTotal Thickness\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eWater Resistance\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eSolid\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · HEADLINE BUILD\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e\u003cstrong\u003e10.0mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eThe thinnest profile — daily wear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eSapphire\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e10.9mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eMovement display — show off the rotor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eThe solid caseback is the headline build — this is the case at its slimmest. The sapphire caseback adds slight thickness in exchange for a view of the NH movement.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\" class=\"row\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eCrown.\u003c\/strong\u003e The crown shown in product photos is for visual reference only. Crowns must be selected above — choose your preferred 7mm style (coin-edge, knurled, or onion). \u003ca title=\"Compatible crowns\" href=\"\/collections\/crowns-for-skx013-diver-38\" target=\"_blank\"\u003eBrowse compatible crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case requires a \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it, the dial sits too low and hands won't clear. The case \u003cstrong\u003efits both normal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, choose ultra thin for clearance. If flat-printed, either works. \u003cstrong\u003eWhen in doubt, ultra thin is the safer default.\u003c\/strong\u003e \u003ca title=\"SKX013-compatible chapter rings\" href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #fff5f5; padding: 18px; border-left: 4px solid #ff2a00; margin-top: 12px;\" class=\"row\"\u003e\n\u003cp\u003e\u003cstrong style=\"color: #ff2a00;\"\u003e\u003cspan class=\"glyphicon glyphicon-warning-sign\"\u003e\u003c\/span\u003e For experienced modders only — TYPE M movements only\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0; color: #7a1f1f;\"\u003e\u003cem\u003eThis case fits \u003cstrong\u003eTYPE M\u003c\/strong\u003e versions of NH35, NH36, NH38, NH70, NH71, NH72 only. \u003cstrong\u003eTYPE L will NOT fit.\u003c\/strong\u003e Due to tight clearance between hands and sapphire, this case is recommended only for professional watchmakers and experienced modders.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca href=\"#tab1\" class=\"active\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli id=\"tab1\" class=\"active\" style=\"list-style-type: none;\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBezel Diameter\u003c\/strong\u003e 38mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Width (with flanks)\u003c\/strong\u003e 42mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Width (with crown)\u003c\/strong\u003e 44mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 10.0mm (Solid Caseback) \/ 10.9mm (Sapphire Caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Weight\u003c\/strong\u003e 49.4g (316L Steel)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 47mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Finishing\u003c\/strong\u003e Brushed\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e 7mm, screw-down (coin-edge, knurled, or onion — per selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Flat Sapphire with clear anti-reflective coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 29.5mm x 1mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e TYPE M: NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrowns\u003c\/strong\u003e 7mm SKX-style\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets\u003c\/strong\u003e 20mm lug — Seikonaut Bracelet 20\/16mm recommended; fits all Lucius Atelier bracelets and any standard 20mm strap\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSolid \u0026amp; Sapphire Caseback\u003c\/strong\u003e 100m \/ 10 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? Here's everything you'll need for a complete, functioning watch — in the order you'd actually assemble it.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe case body with pre-installed flat sapphire crystal, and your chosen caseback. That's the foundation. Everything below is what you'll add to make a wrist-ready watch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 5 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e — required first. The chapter ring seats the dial at the correct height; without it, the dial sits too low and the hands won't clear.\u003cbr\u003e\u003cem\u003e(SKX013-spec — sold on a separate page. See the \"sold separately\" panel above for normal vs ultra thin guidance.)\u003c\/em\u003e\u003cbr\u003e\u003ca title=\"SKX013-compatible chapter rings\" href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e — 7mm SKX-style options (coin-edge, knurled, onion). Pick a style that matches the watch's character.\u003cbr\u003e\u003cem\u003e(Required to add to cart. Selected from the dropdown above on this page.)\u003c\/em\u003e\u003cbr\u003e\u003ca title=\"Compatible crowns\" href=\"\/collections\/crowns-for-skx013-diver-38\" target=\"_blank\"\u003eBrowse compatible crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — the face of the watch. The biggest aesthetic choice you'll make. Match it to your chosen movement (date \/ day+date \/ no-date dial).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired with your dial. Most modders match lume colour across both hands and dial markers (BGW9 white-blue, C3 green, etc.).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH35 (date), NH36 (day+date), NH38 (no date), or source your own. The movement is the engine of the watch.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional finishing touches:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelet or strap\u003c\/strong\u003e \u003cem\u003e(20mm lug)\u003c\/em\u003e — we recommend our \u003ca title=\"Seikonaut Bracelet 20\/16mm\" href=\"\/products\/seikonaut-bracelet-20-16mm\" target=\"_blank\"\u003eSeikonaut Bracelet 20\/16mm \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e to match this case, plus custom shell cordovan \/ full-grain cowhide leather straps.\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDecorated bridge + rotor\u003c\/strong\u003e \u003cem\u003e(only visible with sapphire caseback)\u003c\/em\u003e — replace the stock NH movement bridge and rotor with our Côtes de Genève decorated set, viewable through the sapphire caseback. Note: our bridges fit only our rotors (not OEM Seiko rotors), so they're chosen as a pair. \u003cem\u003eRecommended for experienced modders only — or tick Assemble Watch below and we'll handle it.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTick the \u003cstrong\u003eAssemble Watch (+SGD $50)\u003c\/strong\u003e option above on this page and we'll handle the full build in our Singapore workshop — case fitting, movement seating, crown alignment, caseback press, function check, and decorated bridge + rotor installation if you've added those.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches require \u003cstrong\u003e2–5 business days of workshop time\u003c\/strong\u003e before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body (with pre-installed flat sapphire crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x NH Caseback (Solid or Sapphire, per selection)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Solid","offer_id":46380656394476,"sku":"SNC38SSUT\/NH.Solid","price":120.0,"currency_code":"SGD","in_stock":true},{"title":"Sapphire","offer_id":46380656787692,"sku":"SNC38SSUT\/NH.Sapp","price":145.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/Seikonaut-Watch-Case-38mm-ULTRA-THIN-EDITION-Solid-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1744917392"},{"product_id":"seikonaut-watch-case-38mm-ultra-thin-edition-titanium","title":"Seikonaut 38mm — Ultra Thin Titanium Watch Case","description":"\u003c!-- split --\u003e\n\u003cp style=\"margin:0; padding:0; line-height:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/seikonaut4.jpg?v=1744950770\" alt=\"Seikonaut 38mm Ultra Thin Titanium Watch Case in featherlight Grade 4 titanium\" style=\"display:block; width:100%; height:auto; margin:0; padding:0; vertical-align:bottom;\"\u003e\u003c\/p\u003e\n\u003cdiv style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\" class=\"row\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eFeatherlight Strength. Reborn Ultra Thin. Built in Titanium.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eIntroducing the \u003cstrong\u003eSeikonaut 38mm Titanium\u003c\/strong\u003e, part of our Ultra Thin Edition series — an iconic reinterpretation of a legendary sports-luxury silhouette, now engineered to be among the \u003cstrong\u003ethinnest NH-compatible watch cases\u003c\/strong\u003e ever made, and built entirely in \u003cstrong\u003eGrade 4 titanium\u003c\/strong\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe Seikonaut aesthetic — defined by its angular case geometry, sculpted flanks, and sporty elegance — has achieved cult status in the watch modding world. Coveted for its versatility and bold wrist presence, it blends refined design with everyday wearability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eWhile the bezel measures 38mm, the case tells a bigger story. Factoring in the flared side flanks, the full case width reaches \u003cstrong\u003e42mm\u003c\/strong\u003e, and with the included 7mm coin-edge crown, approximately \u003cstrong\u003e44mm\u003c\/strong\u003e. A commanding presence that still wears balanced — bold, refined, and at home on any wrist size.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eBuilt around your choices.\u003c\/strong\u003e This is a case to build on. You choose the chapter ring, the dial, the hands and the movement — and because every Lucius Atelier case shares the same \u003cstrong\u003e28.5mm dial standard\u003c\/strong\u003e, the parts you'd buy for a Bauhaus 33 or an Explorer 36 fit the Seikonaut too. One parts ecosystem, one set of tolerances. Two things are already done for you: the \u003cstrong\u003e7mm titanium coin-edge crown is included\u003c\/strong\u003e — no crown to source — and the flat sapphire crystal ships \u003cstrong\u003epre-installed and aligned\u003c\/strong\u003e at our workshop, so there's no crystal-pressing at your bench.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eWears 38, lives bigger.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eBezel diameter 38mm, full case width 42mm with the flared flanks, around 44mm with the 7mm crown. Lug-to-lug 47mm, lug width 20mm. A bold sports-luxury silhouette on a compact canvas.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eGenuinely thin.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e10.0mm with the solid caseback. The engineering behind that number: a standard NH movement is 7.59mm tall on its own — which leaves barely 2.4mm for the crystal, case walls, and hand clearance combined. Tight engineering, in titanium.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFeatherlight by design.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eJust \u003cstrong\u003e29 grams\u003c\/strong\u003e on the case alone — over \u003cstrong\u003e40% lighter\u003c\/strong\u003e than the 316L steel Seikonaut at 49.4 grams. Grade 4 titanium is harder than steel, naturally corrosion-resistant, and carries its own distinctive subtle grey tone. A dramatic reduction in wrist fatigue, with no loss of strength.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eBracelet, your call.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eThe 20mm lug takes any standard 20mm strap or bracelet. We recommend our \u003ca href=\"\/products\/seikonaut-bracelet-20-16mm-titanium\" title=\"Seikonaut Bracelet 20\/16mm Titanium\" target=\"_blank\"\u003eSeikonaut Titanium Bracelet \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e for a full featherlight titanium build — but every other Lucius Atelier bracelet fits too.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003ctable style=\"border-collapse: collapse; margin-top: 10px;\" width=\"100%\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCaseback\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eTotal Thickness\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eWater Resistance\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eSolid Titanium\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · INCLUDED\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e\u003cstrong\u003e10.0mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eThe thinnest profile — featherlight daily wear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eThe Titanium Seikonaut ships with a solid titanium caseback included — the case at its slimmest, at just 10.0mm.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\" class=\"row\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case requires a \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it, the dial sits too low and hands won't clear. The case \u003cstrong\u003efits both normal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, choose ultra thin for clearance. If flat-printed, either works. \u003cstrong\u003eWhen in doubt, ultra thin is the safer default.\u003c\/strong\u003e \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" title=\"SKX013-compatible chapter rings\" target=\"_blank\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin-bottom: 0; margin-top: 10px;\"\u003e\u003cem\u003eThe crown, caseback and sapphire crystal are all included with this case. You only need a dial, hands, chapter ring and movement to complete the watch.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #fff5f5; padding: 18px; border-left: 4px solid #ff2a00; margin-top: 12px;\" class=\"row\"\u003e\n\u003cp\u003e\u003cstrong style=\"color: #ff2a00;\"\u003e\u003cspan class=\"glyphicon glyphicon-warning-sign\"\u003e\u003c\/span\u003e For experienced modders only — TYPE M movements only\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0; color: #7a1f1f;\"\u003e\u003cem\u003eThis case fits \u003cstrong\u003eTYPE M\u003c\/strong\u003e versions of NH35, NH36, NH38, NH70, NH71, NH72 only. \u003cstrong\u003eTYPE L will NOT fit.\u003c\/strong\u003e Due to tight clearance between hands and sapphire, this case is recommended only for professional watchmakers and experienced modders.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBezel Diameter\u003c\/strong\u003e 38mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Width (with flanks)\u003c\/strong\u003e 42mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Width (with crown)\u003c\/strong\u003e 44mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 10.0mm (Solid Caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Weight\u003c\/strong\u003e 29g (Titanium) vs 49.4g (316L Steel) — over 40% lighter\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 47mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e Grade 4 Titanium — case, crown, caseback\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Finishing\u003c\/strong\u003e Brushed\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e 7mm coin-edge, screw-down (titanium, included)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Flat Sapphire with clear anti-reflective coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 29.5mm x 1mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e TYPE M: NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrowns\u003c\/strong\u003e 7mm titanium coin-edge (included)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets\u003c\/strong\u003e 20mm lug — Seikonaut Titanium Bracelet recommended for a full titanium build; fits all Lucius Atelier bracelets and any standard 20mm strap\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSolid Caseback\u003c\/strong\u003e 100m \/ 10 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? Here's everything you'll need for a complete, functioning watch — in the order you'd actually assemble it.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe titanium case body, the 7mm titanium coin-edge crown (included), the solid titanium caseback, and the pre-installed flat sapphire crystal. That's a near-complete watch — you only need to add what goes on the dial side.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 4 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e — required first. The chapter ring seats the dial at the correct height; without it, the dial sits too low and the hands won't clear.\u003cbr\u003e\u003cem\u003e(SKX013-spec — sold on a separate page. See the \"sold separately\" panel above for normal vs ultra thin guidance.)\u003c\/em\u003e\u003cbr\u003e\u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\" title=\"SKX013-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — the face of the watch. The biggest aesthetic choice you'll make. Match it to your chosen movement (date \/ day+date \/ no-date dial).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired with your dial. Most modders match lume colour across both hands and dial markers (BGW9 white-blue, C3 green, etc.).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH35 (date), NH36 (day+date), NH38 (no date), or source your own. The movement is the engine of the watch.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional finishing touches:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelet or strap\u003c\/strong\u003e \u003cem\u003e(20mm lug)\u003c\/em\u003e — we recommend our \u003ca href=\"\/products\/seikonaut-bracelet-20-16mm-titanium\" title=\"Seikonaut Bracelet 20\/16mm Titanium\" target=\"_blank\"\u003eSeikonaut Titanium Bracelet \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e for a full titanium build, plus custom shell cordovan \/ full-grain cowhide leather straps.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTick the \u003cstrong\u003eAssemble Watch (+SGD $50)\u003c\/strong\u003e option above on this page and we'll handle the full build in our Singapore workshop — case fitting, movement seating, caseback press, and function check.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches require \u003cstrong\u003e2–5 business days of workshop time\u003c\/strong\u003e before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body (Titanium, with pre-installed flat sapphire crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Crown — 7mm coin-edge (Titanium, included)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x NH Caseback — solid, non-display (Titanium)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\" href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Lucius Atelier","offers":[{"title":"Default Title","offer_id":46380777439468,"sku":"SNC38TiUT","price":219.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/Seikonaut-Watch-Case-38mm-ULTRA-THIN-EDITION-TITANIUM-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1744917405"},{"product_id":"seiko-dweller-watch-case-36mm-ultra-thin-edition-titanium","title":"Seiko-Dweller 36mm — Ultra Thin Titanium Watch Case","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe Fluted Sports Classic. Reborn Ultra Thin. Built in Titanium.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe \u003cstrong\u003eSeiko-Dweller 36mm\u003c\/strong\u003e, part of our Ultra Thin Edition series, is our own take on the fluted sports-watch silhouette — a shape you'll recognise instantly, rebuilt from the ground up in \u003cstrong\u003eGrade 4 titanium\u003c\/strong\u003e and engineered to a profile most titanium cases can't reach.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThis is the \u003cstrong\u003efirst and only ultra thin titanium Seiko-Dweller case on the market\u003c\/strong\u003e — 10.0mm thick with the solid caseback, and around 70 grams on the wrist with the full integrated bracelet fitted. Titanium is why people choose titanium: lighter than steel, harder than steel, naturally corrosion-resistant. This case delivers all three, with nothing left on the table.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eCase, crown, caseback and the integrated bracelet are \u003cstrong\u003eall Grade 4 titanium\u003c\/strong\u003e. The sapphire crystal ships pre-installed. It arrives as a complete case — you add the dial, hands, chapter ring and movement, and you have a finished watch.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eShips as a complete case — crown, bracelet, sapphire and caseback included.\u003c\/strong\u003e\u003cbr\u003eUnlike a bare case build, there's no crown to source, no bracelet to match, no crystal to press. The integrated titanium bracelet comes \u003cstrong\u003epre-installed and aligned\u003c\/strong\u003e at our workshop. A modern classic, ready for your dial.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eFeatherlight by design.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eAround 70 grams on the wrist with the full integrated bracelet — and lighter still once it's sized to your wrist and links are removed. Titanium is supposed to feel light; this case actually does.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eGenuinely thin.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e10.0mm total with the solid caseback. The engineering behind that number: a standard NH movement is 7.59mm tall on its own — which leaves barely 2.4mm for the crystal, caseback floor, walls and hand clearance combined. One of the thinnest cases in our Ultra Thin line.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eTitanium, properly.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eGrade 4 titanium throughout — case, crown, caseback, bracelet. Harder than 316L steel, so it resists scratches and dents better; naturally corrosion-resistant; and carrying titanium's distinctive subtle grey tone that sets it apart from steel at a glance.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eThe integrated bracelet.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eOver 110 individual parts, each link blending polished and brushed finishes for fluid articulation and light play. It's an extreme component to craft — which is why it ships pre-installed and pre-aligned, not loose in the box.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case requires a \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it, the dial sits too low and hands won't clear. The case \u003cstrong\u003efits both normal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, choose ultra thin for clearance. If flat-printed, either works. \u003cstrong\u003eWhen in doubt, ultra thin is the safer default.\u003c\/strong\u003e \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" title=\"SKX013-compatible chapter rings\" target=\"_blank\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin-bottom: 0; margin-top: 10px;\"\u003e\u003cem\u003eEverything else — crown, caseback, integrated bracelet and sapphire crystal — is included with this case. You only need a dial, hands, chapter ring and movement to complete the watch.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #fff5f5; padding: 18px; border-left: 4px solid #ff2a00; margin-top: 12px;\"\u003e\n\u003cp\u003e\u003cstrong style=\"color: #ff2a00;\"\u003e\u003cspan class=\"glyphicon glyphicon-warning-sign\"\u003e\u003c\/span\u003e For experienced modders only — TYPE M movements only\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px; color: #7a1f1f;\"\u003e\u003cem\u003eThis case fits \u003cstrong\u003eTYPE M\u003c\/strong\u003e versions of NH35, NH36, NH38, NH70, NH71, NH72 only. \u003cstrong\u003eTYPE L will NOT fit.\u003c\/strong\u003e Due to tight clearance between hands and sapphire, this case is recommended only for professional watchmakers and experienced modders.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px; color: #7a1f1f;\"\u003e\u003cem\u003e\u003cstrong\u003eIntegrated bracelet.\u003c\/strong\u003e The integrated bracelet requires a more precise installation process than a standard bracelet, so each case ships with the bracelet \u003cstrong\u003epre-installed and aligned\u003c\/strong\u003e. If you remove and refit it, work with care and patience — it takes a steady hand.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0; color: #7a1f1f;\"\u003e\u003cem\u003e\u003cstrong\u003eBracelet screws.\u003c\/strong\u003e Screws are not tightened prior to shipment. Ensure all screws are properly secured before wear — we recommend a suitable threadlocker (e.g. Loctite) during final assembly.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 36mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 10.0mm (Solid Caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 43.8mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 9mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e ~70g with full integrated bracelet\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e Grade 4 Titanium — case, crown, caseback, bracelet\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelet\u003c\/strong\u003e Integrated, tapers to 16mm; butterfly deployment clasp and bracelet screws in 316L stainless steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBezel\u003c\/strong\u003e Mirror-polished fluted\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e 7mm coin-edge, screw-down\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Flat sapphire with clear anti-reflective coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 29.5mm x 1mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e TYPE M: NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSolid Caseback\u003c\/strong\u003e 100m \/ 10 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? Here's everything you'll need for a complete, functioning watch — in the order you'd actually assemble it.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe titanium case body, the 7mm titanium coin-edge crown, the solid titanium caseback, the integrated titanium bracelet (pre-installed), and the pre-installed sapphire crystal. That's a near-complete watch — you only need to add what goes on the dial side.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 4 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e — required first. The chapter ring seats the dial at the correct height; without it, the dial sits too low and the hands won't clear.\u003cbr\u003e\u003cem\u003e(SKX013-spec — sold on a separate page. See the \"sold separately\" panel above for normal vs ultra thin guidance.)\u003c\/em\u003e\u003cbr\u003e\u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\" title=\"SKX013-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — the face of the watch. The biggest aesthetic choice you'll make. Match it to your chosen movement (date \/ day+date \/ no-date dial).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired with your dial. Most modders match lume colour across both hands and dial markers (BGW9 white-blue, C3 green, etc.).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH35 (date), NH36 (day+date), NH38 (no date), or source your own. The movement is the engine of the watch.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTick the \u003cstrong\u003eAssemble Watch (+SGD $50)\u003c\/strong\u003e option above on this page and we'll handle the full build in our Singapore workshop — case fitting, movement seating, crown alignment, caseback press and function check.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches require \u003cstrong\u003e2–5 business days of workshop time\u003c\/strong\u003e before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body (Titanium, with pre-installed flat sapphire crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Crown — 7mm coin-edge (Titanium)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x NH Caseback — solid, non-display (Titanium)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Integrated Bracelet (Titanium, pre-installed)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\" href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Default Title","offer_id":46841072779500,"sku":"SD36TiUT","price":378.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/Seiko-Dweller-36mm-ULTRA-THIN-EDITION-TITANIUM-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1758741436"},{"product_id":"bauhaus-watch-case-33mm-ultra-thin-edition","title":"Bauhaus 33mm — Ultra Thin Watch Case","description":"\u003c!-- split --\u003e\n\u003cp style=\"margin:0; padding:0; line-height:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/Bauhaus_Case_33mm_Ultra_Thin_Edition_11.jpg?v=1773556961\" alt=\"Bauhaus Watch Case 33mm Ultra Thin in polished steel\" style=\"display:block; width:100%; height:auto; margin:0; padding:0; vertical-align:bottom;\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eMinimalist Elegance. Ultra Thin. Unprecedented Size.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe \u003cstrong\u003eBauhaus Watch Case 33mm\u003c\/strong\u003e, part of our Ultra Thin Edition series, is engineered for the purist — the first, smallest, and thinnest NH-compatible watch case on the market today. A groundbreaking foundation for a custom dress build, with nothing on it that doesn't need to be there.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe Bauhaus design language is built on a single century-old idea: form follows function. Clean lines, pure geometry, an uncompromised focus on minimalism. This case captures that spirit exactly — a 33mm canvas of elegant, mid-century proportions, slipping effortlessly under a dress shirt cuff.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAchieving this profile around the robust NH caliber pushed the engineering hard. The result is \u003cstrong\u003esub-10mm in solid 316L stainless steel\u003c\/strong\u003e with a sleek polished finish — proportions most NH-compatible cases simply can't reach.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eSapphire pre-installed. Crown included. Ready to build.\u003c\/strong\u003e\u003cbr\u003eThe flat sapphire crystal ships \u003cstrong\u003epre-installed and aligned\u003c\/strong\u003e at our workshop, and the 6mm coin-edge crown is in the box. You add the dial, hands, chapter ring and movement — and you have a complete dress watch. A foundation that's genuinely yours, down to the millimetre.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eThe smallest of the line.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e33mm diameter, 41.5mm lug-to-lug, 18mm lug width. The most compact case we make — a beautifully understated wrist presence, and the truest mid-century dress proportion in the Ultra Thin family.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eGenuinely thin.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e9.93mm with the solid caseback, measured on a vernier caliper. The engineering behind that number: a standard NH movement is 7.59mm tall on its own — which leaves barely 2.3mm for the crystal, caseback floor, walls and hand clearance combined. The thinnest case in our Ultra Thin line.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eForm follows function.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eNo fluting, no bezel detailing, no imposed character — the Bauhaus is deliberately the most neutral foundation we build. Crafted from robust 316L stainless steel with a clean polished finish, it's pure geometry and nothing else.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eA blank canvas for the purist.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eThe visible bezel is just 1.4mm — barely a frame. On this case the dial isn't a component, it's the entire statement. Whatever dial and hands you choose carry 100% of the design. Build accordingly.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 10px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCaseback\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eTotal Thickness\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eWater Resistance\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eSolid\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · HEADLINE BUILD\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e\u003cstrong\u003e9.93mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eThe thinnest profile — daily and formal wear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eSapphire\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e10.9mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eMovement display — show off the rotor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eThe solid caseback is the headline build — this is the case at its slimmest, sub-10mm. The sapphire caseback adds slight thickness in exchange for a view of the NH movement.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case requires a \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it, the dial sits too low and hands won't clear. The case \u003cstrong\u003efits both normal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, choose ultra thin for clearance. If flat-printed, either works. \u003cstrong\u003eWhen in doubt, ultra thin is the safer default.\u003c\/strong\u003e \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" title=\"SKX013-compatible chapter rings\" target=\"_blank\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin-bottom: 0; margin-top: 10px;\"\u003e\u003cem\u003eThe crown, caseback and sapphire crystal are all included with this case. You only need a dial, hands, chapter ring and movement to complete the watch.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #fff5f5; padding: 18px; border-left: 4px solid #ff2a00; margin-top: 12px;\"\u003e\n\u003cp\u003e\u003cstrong style=\"color: #ff2a00;\"\u003e\u003cspan class=\"glyphicon glyphicon-warning-sign\"\u003e\u003c\/span\u003e For experienced modders only — TYPE M movements only\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0; color: #7a1f1f;\"\u003e\u003cem\u003eThis case fits \u003cstrong\u003eTYPE M\u003c\/strong\u003e versions of NH35, NH36, NH38, NH70, NH71, NH72 only. \u003cstrong\u003eTYPE L will NOT fit.\u003c\/strong\u003e Due to tight clearance between hands and sapphire, this case is recommended only for professional watchmakers and experienced modders.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 33mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 9.93mm (Solid Caseback) \/ 10.9mm (Sapphire Caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 41.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 18mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eVisible Bezel\u003c\/strong\u003e 1.4mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Finishing\u003c\/strong\u003e Polished\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e 6mm coin-edge, screw-down (included)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Flat sapphire with clear anti-reflective coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 29.5mm x 1mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e TYPE M: NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSolid \u0026amp; Sapphire Caseback\u003c\/strong\u003e 100m \/ 10 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? Here's everything you'll need for a complete, functioning watch — in the order you'd actually assemble it.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe case body with pre-installed flat sapphire crystal, the 6mm coin-edge crown, and your chosen caseback. That's the foundation. Everything below is what you'll add to make a wrist-ready watch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 4 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e — required first. The chapter ring seats the dial at the correct height; without it, the dial sits too low and the hands won't clear.\u003cbr\u003e\u003cem\u003e(SKX013-spec — sold on a separate page. See the \"sold separately\" panel above for normal vs ultra thin guidance.)\u003c\/em\u003e\u003cbr\u003e\u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\" title=\"SKX013-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — the face of the watch, and on this case, the entire statement. The biggest aesthetic choice you'll make. Match it to your chosen movement (date \/ day+date \/ no-date dial).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired with your dial. Most modders match lume colour across both hands and dial markers (BGW9 white-blue, C3 green, etc.).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH35 (date), NH36 (day+date), NH38 (no date), or source your own. The movement is the engine of the watch.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional finishing touches:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDecorated bridge + rotor\u003c\/strong\u003e \u003cem\u003e(only visible with sapphire caseback)\u003c\/em\u003e — replace the stock NH movement bridge and rotor with our Côtes de Genève decorated set, viewable through the sapphire caseback. Note: our bridges fit only our rotors (not OEM Seiko rotors), so they're chosen as a pair. \u003cem\u003eRecommended for experienced modders only — or tick Assemble Watch below and we'll handle it.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTick the \u003cstrong\u003eAssemble Watch (+SGD $50)\u003c\/strong\u003e option above on this page and we'll handle the full build in our Singapore workshop — case fitting, movement seating, crown alignment, caseback press and function check.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches require \u003cstrong\u003e2–5 business days of workshop time\u003c\/strong\u003e before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body (with pre-installed flat sapphire crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Crown — 6mm coin-edge, screw-down\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x NH Caseback (Solid or Sapphire, per selection)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\" href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Solid","offer_id":47386071793900,"sku":"B33UT\/NH.Solid","price":145.0,"currency_code":"SGD","in_stock":true},{"title":"Sapphire","offer_id":47386071826668,"sku":"B33UT\/NH.Sapp","price":170.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/Bauhaus-Watch-Case-33mm-ULTRA-THIN-EDITION-Solid-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1773516625"},{"product_id":"1908-watch-case-36mm-ultra-thin-edition-nh34-ready","title":"1908 36mm — Ultra Thin NH34-Ready Watch Case","description":"\u003c!-- split --\u003e\n\u003cp style=\"margin:0; padding:0; line-height:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/1908_Watch_Case_36mm_ultra_thin_edition_-_silver_7_1600_1000.jpg?v=1773823787\" alt=\"1908 dress watch case 36mm Ultra Thin in polished steel\" style=\"display:block; width:100%; height:auto; margin:0; padding:0; vertical-align:bottom;\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe Dress-Watch Silhouette. Reborn Ultra Thin. Ready to Build.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eInspired by the refined sophistication of vintage dress watches, the \u003cstrong\u003e1908 Watch Case 36mm\u003c\/strong\u003e, part of our Ultra Thin Edition series, is our modernised take on classic horology — a fluted, domed bezel that catches light from every angle, paired with a double-domed sapphire that follows the curve for a sleek, uninterrupted profile.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAchieving a genuinely slim dress profile meant building on our Ultra Thin engineering: every internal dimension was re-engineered to compress case height without compromising structure. The result is a \u003cstrong\u003esub-11mm case in solid 316L stainless steel\u003c\/strong\u003e with a mirror-like full polish — formal enough for a cuff, compact enough for any wrist.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThen the twist. Despite the dressy proportions, this case is \u003cstrong\u003efully NH34-ready\u003c\/strong\u003e — it takes a GMT movement. Fitting a GMT caliber into a sub-11mm dress case is an extraordinary engineering feat, and it means you can build something genuinely uncommon: a thin, formal GMT.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eSapphire pre-installed. Ready to assemble.\u003c\/strong\u003e\u003cbr\u003eThe double-domed sapphire crystal is the trickiest part of a domed build to seat — so we've done it for you. It ships \u003cstrong\u003epre-installed and aligned\u003c\/strong\u003e at our workshop, no crystal-pressing, no fitment guesswork. A formal watch that's genuinely yours — down to the millimetre.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eWears 36, dresses up.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eCase diameter 36mm, lug-to-lug 43mm, lug width 20mm. Classic dress-watch proportions that sit beautifully on wrists of all sizes — and slip under a shirt cuff the way a formal watch should.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eGenuinely thin.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e10.75mm total with the solid caseback, including crystal. The engineering behind that number: a standard NH movement is 7.59mm tall on its own — the NH34 GMT, 7.99mm. That leaves barely 3mm for the crystal, caseback floor, walls and hand clearance combined. The NH is a big movement; compressing one into this profile is the whole challenge.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eGMT-capable — the uncommon build.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eFully NH34-ready. Most dress cases can't take a GMT movement; this one does, without giving up the slim profile. A thin formal GMT is a build few modders can make.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eBuilt for our bracelets.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eDesigned to pair with our \u003ca href=\"\/products\/settimo-bracelet-20-16mm\" title=\"Settimo bracelet\" target=\"_blank\"\u003eSettimo \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e and \u003ca href=\"\/products\/president-bracelet-20-16mm\" title=\"President bracelet\" target=\"_blank\"\u003ePresident \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e bracelets — both engineered around this exact 20\/16mm lug profile. The President, in particular, is the dress-bracelet archetype.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 10px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCaseback\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eTotal Thickness\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eWater Resistance\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eSolid\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · HEADLINE BUILD\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e\u003cstrong\u003e10.75mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eThe thinnest profile — daily and formal wear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eSapphire\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e11.7mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eMovement display — show off the rotor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eThe solid caseback is the headline build — this is the case at its slimmest. The sapphire caseback adds slight thickness in exchange for a view of the NH movement.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eCrown.\u003c\/strong\u003e The crown shown in product photos is for visual reference only. Crowns must be selected above. \u003ca href=\"\/collections\/crowns\" title=\"SKX-compatible crowns\" target=\"_blank\"\u003eBrowse compatible crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case requires a \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it, the dial sits too low and hands won't clear. The case \u003cstrong\u003efits both normal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, choose ultra thin for clearance. If flat-printed, either works. \u003cstrong\u003eWhen in doubt, ultra thin is the safer default.\u003c\/strong\u003e \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" title=\"SKX013-compatible chapter rings\" target=\"_blank\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #fff5f5; padding: 18px; border-left: 4px solid #ff2a00; margin-top: 12px;\"\u003e\n\u003cp\u003e\u003cstrong style=\"color: #ff2a00;\"\u003e\u003cspan class=\"glyphicon glyphicon-warning-sign\"\u003e\u003c\/span\u003e For experienced modders only — TYPE M movements only\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px; color: #7a1f1f;\"\u003e\u003cem\u003eThis case fits \u003cstrong\u003eTYPE M\u003c\/strong\u003e versions of NH34, NH35, NH36, NH38, NH70, NH71, NH72 only. \u003cstrong\u003eTYPE L will NOT fit.\u003c\/strong\u003e Due to tight clearance between hands and sapphire, this case is recommended only for professional watchmakers and experienced modders.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0; color: #7a1f1f;\"\u003e\u003cem\u003e\u003cstrong\u003eNH34 \/ GMT builds:\u003c\/strong\u003e for optimal second-hand clearance, the second hand must be under 12mm in length — or use a second-hand cap. Confirm before assembly.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 36mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 10.75mm (Solid Caseback) \/ 11.7mm (Sapphire Caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 43mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Finishing\u003c\/strong\u003e Full mirror polish\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBezel\u003c\/strong\u003e Fluted and domed\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Double-domed sapphire with clear anti-reflective coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 28.6mm x 1mm x 1.75mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw-down, SKX-style compatible\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e TYPE M: NH34, NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrowns\u003c\/strong\u003e SKX-style\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets\u003c\/strong\u003e 20mm lug — \u003ca href=\"\/products\/settimo-bracelet-20-16mm\" title=\"Settimo bracelet\" target=\"_blank\"\u003eSettimo \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e or \u003ca href=\"\/products\/president-bracelet-20-16mm\" title=\"President bracelet\" target=\"_blank\"\u003ePresident \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e recommended for this build\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSolid \u0026amp; Sapphire Caseback\u003c\/strong\u003e 100m \/ 10 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? Here's everything you'll need for a complete, functioning watch — in the order you'd actually assemble it.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe case body with pre-installed double-domed sapphire crystal, and your chosen caseback. That's the foundation. Everything below is what you'll add to make a wrist-ready watch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 5 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e — required first. The chapter ring seats the dial at the correct height; without it, the dial sits too low and the hands won't clear.\u003cbr\u003e\u003cem\u003e(SKX013-spec — sold on a separate page. See the \"sold separately\" panel above for normal vs ultra thin guidance.)\u003c\/em\u003e\u003cbr\u003e\u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\" title=\"SKX013-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e — SKX-style options. Pick a style that matches the watch's character.\u003cbr\u003e\u003cem\u003e(Required to add to cart. Selected from the dropdown above on this page.)\u003c\/em\u003e\u003cbr\u003e\u003ca href=\"\/collections\/crowns\" target=\"_blank\" title=\"SKX-compatible crowns\"\u003eBrowse compatible crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — the face of the watch. The biggest aesthetic choice you'll make. Match it to your chosen movement (date \/ day+date \/ GMT \/ no-date dial).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired with your dial. Most modders match lume colour across both hands and dial markers (BGW9 white-blue, C3 green, etc.). For NH34 GMT builds, you'll also need a GMT hand.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH34 (GMT), NH35 (date), NH36 (day+date), NH38 (no date), or source your own. The movement is the engine of the watch.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional finishing touches:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelet or strap\u003c\/strong\u003e \u003cem\u003e(20mm lug)\u003c\/em\u003e — we recommend our \u003ca href=\"\/products\/settimo-bracelet-20-16mm\" title=\"Settimo bracelet\" target=\"_blank\"\u003eSettimo \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e or \u003ca href=\"\/products\/president-bracelet-20-16mm\" title=\"President bracelet\" target=\"_blank\"\u003ePresident \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e bracelets for this dress build, plus custom shell cordovan \/ full-grain cowhide leather straps.\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDecorated bridge + rotor\u003c\/strong\u003e \u003cem\u003e(only visible with sapphire caseback)\u003c\/em\u003e — replace the stock NH movement bridge and rotor with our Côtes de Genève decorated set, viewable through the sapphire caseback. Note: our bridges fit only our rotors (not OEM Seiko rotors), so they're chosen as a pair. \u003cem\u003eRecommended for experienced modders only — or tick Assemble Watch below and we'll handle it.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTick the \u003cstrong\u003eAssemble Watch (+SGD $50)\u003c\/strong\u003e option above on this page and we'll handle the full build in our Singapore workshop — case fitting, movement seating, crown alignment, caseback press, function check, and decorated bridge + rotor installation if you've added those.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches require \u003cstrong\u003e2–5 business days of workshop time\u003c\/strong\u003e before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body (with pre-installed double-domed sapphire crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x NH Caseback (Solid or Sapphire, per selection)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\" href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Solid","offer_id":47402326687980,"sku":"1908C36UT.Sil\/NH.Solid","price":120.0,"currency_code":"SGD","in_stock":true},{"title":"Sapphire","offer_id":47402326720748,"sku":"1908C36UT.Sil\/NH.Sapp","price":145.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/1908-Watch-Case-36mm-ULTRA-THIN-EDITION-NH34-Ready-Solid-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1773861349"},{"product_id":"1908-watch-case-36mm-yellow-gold-ultra-thin-edition-nh34-ready","title":"1908 36mm Yellow Gold — Ultra Thin NH34-Ready Watch Case","description":"\u003c!-- split --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe Dress-Watch Silhouette. Reborn Ultra Thin. Finished in Gold.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eInspired by the refined sophistication of vintage dress watches, the \u003cstrong\u003e1908 Watch Case 36mm Yellow Gold\u003c\/strong\u003e, part of our Ultra Thin Edition series, is our modernised take on classic horology — a fluted, domed bezel that catches light from every angle, paired with a double-domed sapphire that follows the curve for a sleek, uninterrupted profile.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe difference here is the finish. A rich \u003cstrong\u003ePVD yellow gold coating\u003c\/strong\u003e over solid 316L stainless steel — high-grade Physical Vapor Deposition for genuine resistance to wear and fading, not a finish that rubs off. It turns a dress case into an unmistakably opulent one.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAchieving a genuinely slim profile meant building on our Ultra Thin engineering: every internal dimension was re-engineered to compress case height without compromising structure. The result is a \u003cstrong\u003esub-11mm dress case\u003c\/strong\u003e — formal enough for a cuff, compact enough for any wrist.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThen the twist. Despite the dressy proportions, this case is \u003cstrong\u003efully NH34-ready\u003c\/strong\u003e — it takes a GMT movement. Fitting a GMT caliber into a sub-11mm dress case is an extraordinary engineering feat, and it means you can build something genuinely uncommon: a thin, formal, gold GMT.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eSapphire pre-installed. Ready to assemble.\u003c\/strong\u003e\u003cbr\u003eThe double-domed sapphire crystal is the trickiest part of a domed build to seat — so we've done it for you. It ships \u003cstrong\u003epre-installed and aligned\u003c\/strong\u003e at our workshop, no crystal-pressing, no fitment guesswork. A formal watch that's genuinely yours — down to the millimetre.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eWears 36, dresses up.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eCase diameter 36mm, lug-to-lug 43mm, lug width 20mm. Classic dress-watch proportions that sit beautifully on wrists of all sizes — and slip under a shirt cuff the way a formal watch should.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eGenuinely thin.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e10.75mm total with the solid caseback, including crystal. The engineering behind that number: a standard NH movement is 7.59mm tall on its own — the NH34 GMT, 7.99mm. That leaves barely 3mm for the crystal, caseback floor, walls and hand clearance combined. The NH is a big movement; compressing one into this profile is the whole challenge.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eGMT-capable — the uncommon build.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eFully NH34-ready. Most dress cases can't take a GMT movement; this one does, without giving up the slim profile. A thin formal GMT is a build few modders can make — in gold, fewer still.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eBuilt for our gold bracelet.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eDesigned to pair with our \u003ca href=\"\/products\/settimo-bracelet-20-16mm-yellow-gold-pvd\" title=\"Settimo Bracelet 20\/16mm Yellow Gold\" target=\"_blank\"\u003eSettimo Bracelet in Yellow Gold \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e — a seven-link PVD gold bracelet engineered around this exact 20\/16mm lug profile. The warm, faceted finish is matched to the case.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 10px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCaseback\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eTotal Thickness\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eWater Resistance\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eSolid\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · HEADLINE BUILD\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e\u003cstrong\u003e10.75mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eThe thinnest profile — daily and formal wear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eSapphire\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e11.7mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eMovement display — show off the rotor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eThe solid caseback is the headline build — this is the case at its slimmest. The sapphire caseback adds slight thickness in exchange for a view of the NH movement. Both casebacks are uncoated steel — see What's Included below.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eCrown.\u003c\/strong\u003e The crown shown in product photos is for visual reference only. Crowns must be selected above. \u003ca href=\"\/collections\/crowns\" title=\"SKX-compatible crowns\" target=\"_blank\"\u003eBrowse compatible crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case requires a \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it, the dial sits too low and hands won't clear. The case \u003cstrong\u003efits both normal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, choose ultra thin for clearance. If flat-printed, either works. \u003cstrong\u003eWhen in doubt, ultra thin is the safer default.\u003c\/strong\u003e \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" title=\"SKX013-compatible chapter rings\" target=\"_blank\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #fff5f5; padding: 18px; border-left: 4px solid #ff2a00; margin-top: 12px;\"\u003e\n\u003cp\u003e\u003cstrong style=\"color: #ff2a00;\"\u003e\u003cspan class=\"glyphicon glyphicon-warning-sign\"\u003e\u003c\/span\u003e For experienced modders only — TYPE M movements only\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px; color: #7a1f1f;\"\u003e\u003cem\u003eThis case fits \u003cstrong\u003eTYPE M\u003c\/strong\u003e versions of NH34, NH35, NH36, NH38, NH70, NH71, NH72 only. \u003cstrong\u003eTYPE L will NOT fit.\u003c\/strong\u003e Due to tight clearance between hands and sapphire, this case is recommended only for professional watchmakers and experienced modders.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0; color: #7a1f1f;\"\u003e\u003cem\u003e\u003cstrong\u003eNH34 \/ GMT builds:\u003c\/strong\u003e for optimal second-hand clearance, the second hand must be under 12mm in length — or use a second-hand cap. Confirm before assembly.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 36mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 10.75mm (Solid Caseback) \/ 11.7mm (Sapphire Caseback)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 43mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e Physical Vapor Deposition (PVD) Yellow Gold\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Finishing\u003c\/strong\u003e Full mirror polish\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBezel\u003c\/strong\u003e Fluted and domed\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Double-domed sapphire with clear anti-reflective coating\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal Size\u003c\/strong\u003e 28.6mm x 1mm x 1.75mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw-down, SKX-style compatible\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e TYPE M: NH34, NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrowns\u003c\/strong\u003e SKX-style\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets\u003c\/strong\u003e 20mm lug — \u003ca href=\"\/products\/settimo-bracelet-20-16mm-yellow-gold-pvd\" title=\"Settimo Bracelet 20\/16mm Yellow Gold\" target=\"_blank\"\u003eSettimo in Yellow Gold \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e recommended for this build\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSolid \u0026amp; Sapphire Caseback\u003c\/strong\u003e 100m \/ 10 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? Here's everything you'll need for a complete, functioning watch — in the order you'd actually assemble it.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe case body with pre-installed double-domed sapphire crystal, and your chosen caseback. That's the foundation. Everything below is what you'll add to make a wrist-ready watch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 5 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e — required first. The chapter ring seats the dial at the correct height; without it, the dial sits too low and the hands won't clear.\u003cbr\u003e\u003cem\u003e(SKX013-spec — sold on a separate page. See the \"sold separately\" panel above for normal vs ultra thin guidance.)\u003c\/em\u003e\u003cbr\u003e\u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\" title=\"SKX013-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e — SKX-style options. Pick a style that matches the watch's character.\u003cbr\u003e\u003cem\u003e(Required to add to cart. Selected from the dropdown above on this page.)\u003c\/em\u003e\u003cbr\u003e\u003ca href=\"\/collections\/crowns\" target=\"_blank\" title=\"SKX-compatible crowns\"\u003eBrowse compatible crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — the face of the watch. The biggest aesthetic choice you'll make. Match it to your chosen movement (date \/ day+date \/ GMT \/ no-date dial).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired with your dial. Most modders match lume colour across both hands and dial markers (BGW9 white-blue, C3 green, etc.). For NH34 GMT builds, you'll also need a GMT hand.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH34 (GMT), NH35 (date), NH36 (day+date), NH38 (no date), or source your own. The movement is the engine of the watch.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional finishing touches:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelet or strap\u003c\/strong\u003e \u003cem\u003e(20mm lug)\u003c\/em\u003e — we recommend our \u003ca href=\"\/products\/settimo-bracelet-20-16mm-yellow-gold-pvd\" title=\"Settimo Bracelet 20\/16mm Yellow Gold\" target=\"_blank\"\u003eSettimo Bracelet in Yellow Gold \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e to match this case's finish, plus custom shell cordovan \/ full-grain cowhide leather straps.\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDecorated bridge + rotor\u003c\/strong\u003e \u003cem\u003e(only visible with sapphire caseback)\u003c\/em\u003e — replace the stock NH movement bridge and rotor with our Côtes de Genève decorated set, viewable through the sapphire caseback. Note: our bridges fit only our rotors (not OEM Seiko rotors), so they're chosen as a pair. \u003cem\u003eRecommended for experienced modders only — or tick Assemble Watch below and we'll handle it.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTick the \u003cstrong\u003eAssemble Watch (+SGD $50)\u003c\/strong\u003e option above on this page and we'll handle the full build in our Singapore workshop — case fitting, movement seating, crown alignment, caseback press, function check, and decorated bridge + rotor installation if you've added those.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches require \u003cstrong\u003e2–5 business days of workshop time\u003c\/strong\u003e before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body in PVD Yellow Gold (with pre-installed double-domed sapphire crystal)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x NH Caseback — uncoated steel (Solid or Sapphire, per selection)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eThe caseback is supplied in uncoated stainless steel — it sits against the wrist and is not visible when worn.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\" href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Solid","offer_id":47402551214316,"sku":"1908C36UT.YGold\/NH.Solid","price":145.0,"currency_code":"SGD","in_stock":true},{"title":"Sapphire","offer_id":47402551247084,"sku":"1908C36UT.YGold\/NH.Sapp","price":170.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/1908-Watch-Case-36mm-Yellow-Gold-ULTRA-THIN-EDITION-NH34-Ready-Solid-Lucius-Atelier-Swiss-Quality-Seiko-Watch-Mod-Parts.jpg?v=1773861359"},{"product_id":"skx013-diver-38-black-ultra-thin-edition","title":"SKX013 Diver 38 Black — Ultra Thin Watch Case","description":"\u003c!-- split --\u003e\n\u003cp style=\"margin:0; padding:0; line-height:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/skx013-diver-38-black-mop-beach-1-1600x600.jpg?v=1778211235\" alt=\"SKX013 Diver 38 Black Ultra Thin on white sand beach with turquoise ocean\" style=\"display:block; width:100%; height:auto; margin:0; padding:0; vertical-align:bottom;\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe Sub Silhouette. Reborn Ultra Thin. Ready to Build.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eInspired by the dive-watch silhouette that defined an era, the \u003cstrong\u003eSKX013 Diver 38\u003c\/strong\u003e, part of our Ultra Thin Edition series, is our ground-up reinterpretation — engineered to be among the \u003cstrong\u003ethinnest dive cases compatible with the NH movement\u003c\/strong\u003e on the market today.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAchieving this profile meant rebuilding the case body from scratch. Every internal dimension was re-engineered to compress the case height without compromising structure. As a consequence, the \u003cstrong\u003ebezel, ceramic insert, and sapphire crystal are unique to this case\u003c\/strong\u003e — standard SKX bezels, inserts, and crystals will not fit, and ours will not fit a stock SKX. All three ship pre-fitted and aligned at our workshop. They can be removed by a watchmaker, but the design and parts are exclusive to us.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eWhat we did keep compatible: the things modders actually want flexibility on. \u003cstrong\u003eSKX-style crowns, SKX013-spec chapter ring, Seiko Mod dials (28.5mm), hands, and NH-series movements\u003c\/strong\u003e all work as expected. You get the thinnest dive-style profile on the market, paired with the modding ecosystem you already know.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eRoughly 10% cheaper than building it part-by-part — and ready to assemble.\u003c\/strong\u003e\u003cbr\u003eBuying our SKX-style case body, matching bezel, ceramic insert, and sapphire crystal separately would cost about 10% more than this complete case. And you skip the hardest parts of the build: \u003cstrong\u003eno crystal-pressing the sapphire, no fitting the rotating bezel, no sticking and aligning the ceramic insert.\u003c\/strong\u003e We ship it pre-fitted and pre-aligned. For a dive-style build with a rotating ceramic bezel, that's hours of finicky workshop time avoided.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eWears 38, looks bigger.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eCase diameter 38mm. With crown guards the case width reaches 40mm. Lug-to-lug 46mm, lug width 20mm. A diver's silhouette on a small-wrist canvas. \u003ca href=\"\/blogs\/news\/38mm-watch-looks-smaller-case-proportion-guide\" title=\"Why this 38mm case wears bigger — measured against the SKX007\" target=\"_blank\"\u003eSee how we measured it against a 42.5mm SKX007 \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eGenuinely thin.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e10.86mm with the Ultra Thin solid caseback — one of the thinnest NH-compatible dive cases ever made. The NH movement alone is 7.59mm. That leaves just a few millimeters for the crystal, walls, and hand clearance. Tight engineering.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eBuilt to dive (when you choose to).\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eUp to 200m water resistance. Screw-down crown. Unidirectional 120-click rotating bezel with \u003cstrong\u003eblack ceramic insert\u003c\/strong\u003e and \u003cstrong\u003eSwiss Super-LumiNova® BGW9 Grade A\u003c\/strong\u003e lume pip. Bezel and insert ship pre-fitted and pre-aligned.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eThree casebacks, two crystals.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003ePick the Ultra Thin solid caseback for the headline thinness. Pick the thicker solid caseback for full 200m dive-rating. Pick the \u003cstrong\u003esapphire caseback to display the movement\u003c\/strong\u003e — and consider adding a \u003cstrong\u003edecorated bridge and rotor\u003c\/strong\u003e for a fully customised view through the back. Cyclops crystal pairs with NH35 only — the magnifier sits over the date window, so the dial must have one.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 10px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCaseback\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eTotal Thickness\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eWater Resistance\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eUltra Thin Solid\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · HEADLINE BUILD\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e\u003cstrong\u003e10.86mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eDaily wear — the thinnest profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eThick Solid\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e11.36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e\u003cstrong\u003e200m \/ 20 ATM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eModders who actually take it diving\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eSapphire\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e11.76mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eMovement display — show off the rotor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eThe Ultra Thin Solid caseback is the headline build — this is the case at its slimmest. The other two are for buyers prioritising dive-rating or movement display, and add slight thickness in exchange.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- BUILD_POPULARITY_WIDGET --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eCrown.\u003c\/strong\u003e The crown shown in product photos is for visual reference only. Crowns must be selected above — choose from 5 SKX013-compatible options. \u003ca href=\"\/collections\/crowns-for-skx013-diver-38\" title=\"SKX013-compatible crowns\" target=\"_blank\"\u003eBrowse compatible crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case requires a \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it, the dial sits too low and hands won't clear. The case \u003cstrong\u003efits both normal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, choose ultra thin for clearance. If flat-printed, either works. \u003cstrong\u003eWhen in doubt, ultra thin is the safer default.\u003c\/strong\u003e \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" title=\"SKX013-compatible chapter rings\" target=\"_blank\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #fff5f5; padding: 18px; border-left: 4px solid #ff2a00; margin-top: 12px;\"\u003e\n\u003cp\u003e\u003cstrong style=\"color: #ff2a00;\"\u003e\u003cspan class=\"glyphicon glyphicon-warning-sign\"\u003e\u003c\/span\u003e For experienced modders only — TYPE M movements only\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0; color: #7a1f1f;\"\u003e\u003cem\u003eThis case fits \u003cstrong\u003eTYPE M\u003c\/strong\u003e versions of NH35, NH36, NH38, NH70, NH71, NH72 only. \u003cstrong\u003eTYPE L will NOT fit.\u003c\/strong\u003e Due to tight clearance between hands and sapphire, this case is recommended only for professional watchmakers and experienced modders.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!--Start tab labels--\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!--Start tab content--\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 38mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Width (with crown guards)\u003c\/strong\u003e 40mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 10.86mm (Ultra Thin Solid) \/ 11.36mm (Thick Solid, 200m) \/ 11.76mm (Sapphire)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 46mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Finishing\u003c\/strong\u003e Brushed (lug tops), Mirror polished (lug sides)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBezel\u003c\/strong\u003e Unidirectional rotating, 120-click (pre-fitted at workshop, exclusive to this case)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBezel Insert\u003c\/strong\u003e Black ceramic with Swiss Super-LumiNova® BGW9 Grade A lume pip\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Flat Sapphire with clear AR coating (cyclops or no-cyclops, per selection; pre-installed, exclusive to this case)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw down, SKX-style compatible\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e TYPE M: NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrowns\u003c\/strong\u003e 7mm SKX-style\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets\u003c\/strong\u003e Lucius Atelier bracelets only (designed exclusively for our cases)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eUltra Thin Solid Caseback\u003c\/strong\u003e 100m \/ 10 ATM\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eThick Solid Caseback\u003c\/strong\u003e 200m \/ 20 ATM\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSapphire Caseback\u003c\/strong\u003e 100m \/ 10 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? Here's everything you'll need for a complete, functioning watch — in the order you'd actually assemble it.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe case body, bezel + ceramic insert (pre-fitted), and your chosen caseback + crystal. That's the foundation. Everything below is what you'll add to make a functioning, wrist-ready watch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 5 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e — required first. The chapter ring seats the dial at the correct height; without it, the dial sits too low and the hands won't clear.\u003cbr\u003e\n\u003cem\u003e(SKX013-spec — sold on a separate page. See the \"sold separately\" panel above for normal vs ultra thin guidance.)\u003c\/em\u003e\u003cbr\u003e\n\u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\" title=\"SKX013-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e — five SKX-style options. Pick a style that matches the watch's character.\u003cbr\u003e\n\u003cem\u003e(Required to add to cart. Selected from the dropdown above on this page.)\u003c\/em\u003e\u003cbr\u003e\n\u003ca href=\"\/collections\/crowns-for-skx013-diver-38\" target=\"_blank\" title=\"SKX013-compatible crowns\"\u003eBrowse compatible crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — the face of the watch. The biggest aesthetic choice you'll make. Match it to your chosen movement (date \/ day+date \/ no-date dial).\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired with your dial. Most modders match lume colour across both hands and dial markers (BGW9 white-blue, C3 green, etc.).\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH35 (date), NH36 (day+date), NH38 (no date), or source your own. The movement is the engine of the watch.\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional finishing touches:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelet or strap\u003c\/strong\u003e \u003cem\u003e(20mm lug)\u003c\/em\u003e — Lucius Atelier oyster, jubilee, president, GS, Seikonaut, Settimo, or more designs, plus custom shell cordovan \/ full-grain cowhide leather straps.\n\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDecorated bridge + rotor\u003c\/strong\u003e \u003cem\u003e(only visible with sapphire caseback)\u003c\/em\u003e — replace the stock NH movement bridge and rotor with our Côtes de Genève decorated set, viewable through the sapphire caseback. Note: our bridges fit only our rotors (not OEM Seiko rotors), so they're chosen as a pair. \u003cem\u003eRecommended for experienced modders only — or tick Assemble Watch below and we'll handle it.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTick the \u003cstrong\u003eAssemble Watch (+SGD $50)\u003c\/strong\u003e option above on this page and we'll handle the full build in our Singapore workshop — case fitting, movement seating, crown alignment, caseback press, function check, and decorated bridge + rotor installation if you've added those.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches require \u003cstrong\u003e3–5 business days of workshop time\u003c\/strong\u003e before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body (with pre-installed flat sapphire crystal — cyclops or no cyclops, per selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Bezel + Black Ceramic Insert (pre-fitted, pre-aligned, with BGW9 Grade A lume pip)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x NH Caseback (Ultra Thin Solid \/ Thick Solid \/ Sapphire, per selection)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\" href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Ultra Thin Solid \/ Yes","offer_id":47599052587244,"sku":"Sub38UT.Black\/UT.Solid\/Cyc","price":239.0,"currency_code":"SGD","in_stock":true},{"title":"Ultra Thin Solid \/ No","offer_id":47594531356908,"sku":"Sub38UT.Black\/UT.Solid","price":229.0,"currency_code":"SGD","in_stock":true},{"title":"Thick Solid \/ Yes","offer_id":47599052620012,"sku":"Sub38UT.Black\/T.Solid\/Cyc","price":239.0,"currency_code":"SGD","in_stock":true},{"title":"Thick Solid \/ No","offer_id":47598834745580,"sku":"Sub38UT.Black\/T.Solid","price":229.0,"currency_code":"SGD","in_stock":true},{"title":"Sapphire \/ Yes","offer_id":47599052652780,"sku":"Sub38UT.Black\/Sapp\/Cyc","price":264.0,"currency_code":"SGD","in_stock":true},{"title":"Sapphire \/ No","offer_id":47594531389676,"sku":"Sub38UT.Black\/Sapp","price":254.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/skx013-diver-38mm-black-5_433dd17e-872c-4da3-b952-c488608f1121.jpg?v=1777978844"},{"product_id":"skx013-diver-38-green-ultra-thin-edition","title":"SKX013 Diver 38 Green — Ultra Thin Watch Case","description":"\u003c!-- split --\u003e\n\u003cp style=\"margin:0; padding:0; line-height:0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/skx013-diver-38-green-mop-beach-1-1600x600.jpg?v=1778211236\" alt=\"SKX013 Diver 38 Green Ultra Thin on mossy stone in tropical jungle stream\" style=\"display:block; width:100%; height:auto; margin:0; padding:0; vertical-align:bottom;\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"row\" style=\"background-color: #faf7f2; padding: 32px; margin-top: 0;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eThe Sub Silhouette. Reborn Ultra Thin. Ready to Build.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eInspired by the dive-watch silhouette that defined an era, the \u003cstrong\u003eSKX013 Diver 38\u003c\/strong\u003e, part of our Ultra Thin Edition series, is our ground-up reinterpretation — engineered to be among the \u003cstrong\u003ethinnest dive cases compatible with the NH movement\u003c\/strong\u003e on the market today.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAchieving this profile meant rebuilding the case body from scratch. Every internal dimension was re-engineered to compress the case height without compromising structure. As a consequence, the \u003cstrong\u003ebezel, ceramic insert, and sapphire crystal are unique to this case\u003c\/strong\u003e — standard SKX bezels, inserts, and crystals will not fit, and ours will not fit a stock SKX. All three ship pre-fitted and aligned at our workshop. They can be removed by a watchmaker, but the design and parts are exclusive to us.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eWhat we did keep compatible: the things modders actually want flexibility on. \u003cstrong\u003eSKX-style crowns, SKX013-spec chapter ring, Seiko Mod dials (28.5mm), hands, and NH-series movements\u003c\/strong\u003e all work as expected. You get the thinnest dive-style profile on the market, paired with the modding ecosystem you already know.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-top: 20px; padding-top: 18px; border-top: 1px dashed #999;\"\u003e\u003cem\u003e\u003cstrong style=\"color: #0abab5;\"\u003eRoughly 10% cheaper than building it part-by-part — and ready to assemble.\u003c\/strong\u003e\u003cbr\u003eBuying our SKX-style case body, matching bezel, ceramic insert, and sapphire crystal separately would cost about 10% more than this complete case. And you skip the hardest parts of the build: \u003cstrong\u003eno crystal-pressing the sapphire, no fitting the rotating bezel, no sticking and aligning the ceramic insert.\u003c\/strong\u003e We ship it pre-fitted and pre-aligned. For a dive-style build with a rotating ceramic bezel, that's hours of finicky workshop time avoided.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"eight columns alpha\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eWears 38, looks bigger.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eCase diameter 38mm. With crown guards the case width reaches 40mm. Lug-to-lug 46mm, lug width 20mm. A diver's silhouette on a small-wrist canvas. \u003ca href=\"\/blogs\/news\/38mm-watch-looks-smaller-case-proportion-guide\" title=\"Why this 38mm case wears bigger — measured against the SKX007\" target=\"_blank\"\u003eSee how we measured it against a 42.5mm SKX007 \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eGenuinely thin.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e10.86mm with the Ultra Thin solid caseback — one of the thinnest NH-compatible dive cases ever made. The NH movement alone is 7.59mm. That leaves just a few millimeters for the crystal, walls, and hand clearance. Tight engineering.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"eight columns omega\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eBuilt to dive (when you choose to).\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eUp to 200m water resistance. Screw-down crown. Unidirectional 120-click rotating bezel with \u003cstrong\u003egreen ceramic insert\u003c\/strong\u003e and \u003cstrong\u003eSwiss Super-LumiNova® BGW9 Grade A\u003c\/strong\u003e lume pip. Bezel and insert ship pre-fitted and pre-aligned.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #0abab5;\"\u003eThree casebacks, two crystals.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003ePick the Ultra Thin solid caseback for the headline thinness. Pick the thicker solid caseback for full 200m dive-rating. Pick the \u003cstrong\u003esapphire caseback to display the movement\u003c\/strong\u003e — and consider adding a \u003cstrong\u003edecorated bridge and rotor\u003c\/strong\u003e for a fully customised view through the back. Cyclops crystal pairs with NH35 only — the magnifier sits over the date window, so the dial must have one.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; margin-top: 10px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #1a1a1a; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eCaseback\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eTotal Thickness\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: center;\"\u003eWater Resistance\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left;\"\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f0fafa; border-left: 4px solid #0abab5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\n\u003cstrong\u003eUltra Thin Solid\u003c\/strong\u003e \u003cspan style=\"color: #0abab5; font-size: 11px; font-weight: bold;\"\u003e · HEADLINE BUILD\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e\u003cstrong\u003e10.86mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eDaily wear — the thinnest profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eThick Solid\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e11.36mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e\u003cstrong\u003e200m \/ 20 ATM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eModders who actually take it diving\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e5e5e5;\"\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eSapphire\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e11.76mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; text-align: center;\"\u003e100m \/ 10 ATM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eMovement display — show off the rotor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003eThe Ultra Thin Solid caseback is the headline build — this is the case at its slimmest. The other two are for buyers prioritising dive-rating or movement display, and add slight thickness in exchange.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- BUILD_POPULARITY_WIDGET --\u003e\n\u003cdiv class=\"row\" style=\"background-color: #f4f4f4; padding: 20px; border-left: 4px solid #0abab5; margin-top: 20px;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"glyphicon glyphicon-info-sign\"\u003e\u003c\/span\u003e Heads up — sold separately\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cem\u003e\u003cstrong\u003eCrown.\u003c\/strong\u003e The crown shown in product photos is for visual reference only. Crowns must be selected above — choose from 5 SKX013-compatible options. \u003ca href=\"\/collections\/crowns-for-skx013-diver-38\" title=\"SKX013-compatible crowns\" target=\"_blank\"\u003eBrowse compatible crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003e\u003cem\u003e\u003cstrong\u003eChapter ring.\u003c\/strong\u003e This case requires a \u003cstrong\u003eSKX013-spec chapter ring\u003c\/strong\u003e to seat the dial correctly — without it, the dial sits too low and hands won't clear. The case \u003cstrong\u003efits both normal and ultra thin chapter rings\u003c\/strong\u003e; the choice depends on your \u003cstrong\u003edial\u003c\/strong\u003e, not the case. If your dial has applied (raised) indices, choose ultra thin for clearance. If flat-printed, either works. \u003cstrong\u003eWhen in doubt, ultra thin is the safer default.\u003c\/strong\u003e \u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" title=\"SKX013-compatible chapter rings\" target=\"_blank\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\" style=\"background-color: #fff5f5; padding: 18px; border-left: 4px solid #ff2a00; margin-top: 12px;\"\u003e\n\u003cp\u003e\u003cstrong style=\"color: #ff2a00;\"\u003e\u003cspan class=\"glyphicon glyphicon-warning-sign\"\u003e\u003c\/span\u003e For experienced modders only — TYPE M movements only\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0; color: #7a1f1f;\"\u003e\u003cem\u003eThis case fits \u003cstrong\u003eTYPE M\u003c\/strong\u003e versions of NH35, NH36, NH38, NH70, NH71, NH72 only. \u003cstrong\u003eTYPE L will NOT fit.\u003c\/strong\u003e Due to tight clearance between hands and sapphire, this case is recommended only for professional watchmakers and experienced modders.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!--Start tab labels--\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#tab1\"\u003eSpecs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eBuild Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eWhat's Included\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab5\"\u003eHow To Mod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!--Start tab content--\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli style=\"list-style-type: none;\" class=\"active\" id=\"tab1\"\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Diameter\u003c\/strong\u003e 38mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Width (with crown guards)\u003c\/strong\u003e 40mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Thickness\u003c\/strong\u003e 10.86mm (Ultra Thin Solid) \/ 11.36mm (Thick Solid, 200m) \/ 11.76mm (Sapphire)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug to Lug\u003c\/strong\u003e 46mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eLug Width\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials \u0026amp; Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eQuality\u003c\/strong\u003e Swiss Production Quality, ISO 9001 Certified\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Material\u003c\/strong\u003e 316L Stainless Steel\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCase Finishing\u003c\/strong\u003e Brushed (lug tops), Mirror polished (lug sides)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBezel\u003c\/strong\u003e Unidirectional rotating, 120-click (pre-fitted at workshop, exclusive to this case)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBezel Insert\u003c\/strong\u003e Green ceramic with Swiss Super-LumiNova® BGW9 Grade A lume pip\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e Flat Sapphire with clear AR coating (cyclops or no-cyclops, per selection; pre-installed, exclusive to this case)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e Screw down, SKX-style compatible\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eMovements\u003c\/strong\u003e TYPE M: NH35, NH36, NH38, NH70, NH71, NH72\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDials\u003c\/strong\u003e 28.5mm\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eChapter Rings\u003c\/strong\u003e SKX013-spec (required, sold separately)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e NH movement compatible\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eCrowns\u003c\/strong\u003e 7mm SKX-style\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelets\u003c\/strong\u003e Lucius Atelier bracelets only (designed exclusively for our cases)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eUltra Thin Solid Caseback\u003c\/strong\u003e 100m \/ 10 ATM\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eThick Solid Caseback\u003c\/strong\u003e 200m \/ 20 ATM\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eSapphire Caseback\u003c\/strong\u003e 100m \/ 10 ATM\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003cp\u003e\u003cem\u003eNew to Seiko modding? Here's everything you'll need for a complete, functioning watch — in the order you'd actually assemble it.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's already in this purchase:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe case body, bezel + ceramic insert (pre-fitted), and your chosen caseback + crystal. That's the foundation. Everything below is what you'll add to make a functioning, wrist-ready watch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 5 parts you'll need for a complete watch:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChapter ring\u003c\/strong\u003e — required first. The chapter ring seats the dial at the correct height; without it, the dial sits too low and the hands won't clear.\u003cbr\u003e\n\u003cem\u003e(SKX013-spec — sold on a separate page. See the \"sold separately\" panel above for normal vs ultra thin guidance.)\u003c\/em\u003e\u003cbr\u003e\n\u003ca href=\"\/collections\/chapter-rings-swiss-quality-seiko-mod-parts\/skx013?sort_by=title-ascending\" target=\"_blank\" title=\"SKX013-compatible chapter rings\"\u003eBrowse compatible chapter rings \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown\u003c\/strong\u003e — five SKX-style options. Pick a style that matches the watch's character.\u003cbr\u003e\n\u003cem\u003e(Required to add to cart. Selected from the dropdown above on this page.)\u003c\/em\u003e\u003cbr\u003e\n\u003ca href=\"\/collections\/crowns-for-skx013-diver-38\" target=\"_blank\" title=\"SKX013-compatible crowns\"\u003eBrowse compatible crowns \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial\u003c\/strong\u003e (28.5mm) — the face of the watch. The biggest aesthetic choice you'll make. Match it to your chosen movement (date \/ day+date \/ no-date dial).\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands\u003c\/strong\u003e — paired with your dial. Most modders match lume colour across both hands and dial markers (BGW9 white-blue, C3 green, etc.).\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e — NH35 (date), NH36 (day+date), NH38 (no date), or source your own. The movement is the engine of the watch.\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eOptional finishing touches:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eBracelet or strap\u003c\/strong\u003e \u003cem\u003e(20mm lug)\u003c\/em\u003e — Lucius Atelier oyster, jubilee, president, GS, Seikonaut, Settimo, or more designs, plus custom shell cordovan \/ full-grain cowhide leather straps.\n\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\n\u003cstrong\u003eDecorated bridge + rotor\u003c\/strong\u003e \u003cem\u003e(only visible with sapphire caseback)\u003c\/em\u003e — replace the stock NH movement bridge and rotor with our Côtes de Genève decorated set, viewable through the sapphire caseback. Note: our bridges fit only our rotors (not OEM Seiko rotors), so they're chosen as a pair. \u003cem\u003eRecommended for experienced modders only — or tick Assemble Watch below and we'll handle it.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWant it built for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTick the \u003cstrong\u003eAssemble Watch (+SGD $50)\u003c\/strong\u003e option above on this page and we'll handle the full build in our Singapore workshop — case fitting, movement seating, crown alignment, caseback press, function check, and decorated bridge + rotor installation if you've added those.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003e\u003cem\u003eHeads up: assembled watches require \u003cstrong\u003e3–5 business days of workshop time\u003c\/strong\u003e before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 16px; padding-top: 12px; border-top: 1px dashed #ccc;\"\u003e\u003cem\u003eOnce your parts arrive, see the \u003cstrong\u003eHow To Mod\u003c\/strong\u003e tab for assembly tutorials.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e1x Watch Case Body (with pre-installed flat sapphire crystal — cyclops or no cyclops, per selection)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x Bezel + Green Ceramic Insert (pre-fitted, pre-aligned, with BGW9 Grade A lume pip)\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e1x NH Caseback (Ultra Thin Solid \/ Thick Solid \/ Sapphire, per selection)\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9900;\"\u003e\u003cem\u003eAll photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab5\"\u003e\n\u003col\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TUTORIAL - How To Mod Your SEIKO Watch Dial \u0026amp; Hands by Lucius Atelier\" href=\"\/blogs\/news\/tutorial-how-to-modify-your-seiko-watch-dial-and-hands\" target=\"_blank\"\u003eA Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Photos \u0026amp; Video) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca title=\"TIPS - Learn about fitting dials with four dial legs by Lucius Atelier\" href=\"\/blogs\/news\/tips-learn-about-fitting-dials-with-four-dial-legs\" target=\"_blank\"\u003eFitting dials with four dial legs \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli type=\"disc\"\u003e\u003ca href=\"\/blogs\/news\/seiko-watch-modding-101\" target=\"_blank\"\u003eSeiko Modding: The Complete Build Guide (2026) \u003cspan class=\"glyphicon glyphicon-new-window\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lucius Atelier","offers":[{"title":"Ultra Thin Solid \/ Yes","offer_id":47600040083692,"sku":"Sub38UT.Green\/UT.Solid\/Cyc","price":249.0,"currency_code":"SGD","in_stock":true},{"title":"Ultra Thin Solid \/ No","offer_id":47600040116460,"sku":"Sub38UT.Green\/UT.Solid","price":239.0,"currency_code":"SGD","in_stock":true},{"title":"Thick Solid \/ Yes","offer_id":47600040149228,"sku":"Sub38UT.Green\/T.Solid\/Cyc","price":249.0,"currency_code":"SGD","in_stock":true},{"title":"Thick Solid \/ No","offer_id":47600040181996,"sku":"Sub38UT.Green\/T.Solid","price":239.0,"currency_code":"SGD","in_stock":true},{"title":"Sapphire \/ Yes","offer_id":47600040214764,"sku":"Sub38UT.Green\/Sapp\/Cyc","price":274.0,"currency_code":"SGD","in_stock":true},{"title":"Sapphire \/ No","offer_id":47600040247532,"sku":"Sub38UT.Green\/Sapp","price":264.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/0386\/3612\/files\/skx013-diver-38mm-green-5.jpg?v=1777985093"}],"url":"https:\/\/luciusatelier.com\/collections\/watch-cases\/gold.oembed","provider":"Lucius Atelier","version":"1.0","type":"link"}