.product_section .product_form, .product_gallery { opacity: 1; } .multi_select, form .select { display: block !important; } .image-element__wrap { display: none; }

Currency
Login

0

Your Cart is Empty

shop

SEIKO MOD PARTS

WATCHES

MISC

⚙ CONFIGURATOR
Build Your Own Visually

Ultra Thin Edition

Seikonaut Bracelet 20/16mm [TITANIUM] - - - - Lucius Atelier - Swiss Quality Seiko Watch Mod Parts

Seikonaut

SKX013 Watch Case - 38mm (DLC BLACK EDITION) [NH34-Ready] - - - - Lucius Atelier - Swiss Quality Seiko Watch Mod Parts

SKX013 Watch Case - 38mm (DLC BLACK EDITION) [NH34-Ready] - - - - Lucius Atelier - Swiss Quality Seiko Watch Mod Parts

SKX013 Watch Case - 38mm (DLC BLACK EDITION) [NH34-Ready] - - - - Lucius Atelier - Swiss Quality Seiko Watch Mod Parts

SKX013 Watch Case - 38mm (DLC BLACK EDITION) [NH34-Ready] - - - - Lucius Atelier - Swiss Quality Seiko Watch Mod Parts

SKX013 Watch Case - 38mm (DLC BLACK EDITION) [NH34-Ready] - - - - Lucius Atelier - Swiss Quality Seiko Watch Mod Parts

SKX013 Watch Case - 38mm (DLC BLACK EDITION) [NH34-Ready]

.price-ui--loading { display: block !important; opacity: 1 !important; }

$98 SGD

Worldwide
Delivery Express
2–4 Days Replies In
1 Day 30-Day
Returns

The Discontinued Diver. Rebuilt at 38mm. Ready to Mod.

Our ground-up reinterpretation of the discontinued SKX013 — sized at a wearable 38mm, with drilled-through lugs for that period-correct, tool-free strap-change character.

Built from the start to take our entire SKX013 mod-parts range, so the final piece is yours to spec. NH34 GMT-ready, and compatible with the full NH movement family.

Designed to fit all our 28.5mm dials and original NH movements (which seat on the grey dial holding spacer).

This edition wears a DLC black coating — 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.

Wears 38, builds big.
Case diameter 38mm, lug-to-lug 45.5mm, 20mm lugs. Drop in a bezel insert and it carries real wrist presence for its size. See how a small dive case wears bigger .

Drilled-through lugs.
Vintage-style drilled lugs — quick, tool-free strap swaps and an honest period look.

Built to dive.
200m / 20 ATM, tested. Screw-down crown. Universal springbars.

Fits the whole SKX013 ecosystem.
Bezel, insert, sapphire crystal, chapter ring, crown, dial, hands — all from our SKX013 range. 28.5mm dials; NH movements on the grey dial holding spacer.

The SKX013 case family — find your size

Case	Diameter	Lug-to-Lug	Character
SKX013 38mm · YOU'RE VIEWING THIS	38mm	45.5mm	Our take on the discontinued SKX013 diver
SKX013 Submariner 36mm	36mm	45.5mm	Vintage sub-style skin-diver
SKX013 GS Diver 36mm	36mm	44mm	GS-style diver, most compact

All 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.

This exact case also comes in the natural 316L steel version .

Heads up — this is the case body. The rest is sold separately.

This 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 SKX013 parts range .

Chapter ring. This case needs an SKX013-spec chapter ring to seat the dial correctly — without it the dial sits too low and the hands won't clear. It takes both normal and ultra thin chapter rings; the choice depends on your dial, 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. Browse SKX013 chapter rings .

Crown. Screw-down, SKX-style. Browse SKX013 crowns .

Specs
Build Guide
What's Included
How To Mod

Dimensions
1. Case Diameter 38mm
2. Case Thickness 9mm (case body only, excluding caseback and crystal)
3. Lug to Lug 45.5mm
4. Lug Width 20mm
Materials & Finish
1. Quality Swiss Production Quality, ISO 9001 Certified
2. Case Material 316L Stainless Steel with DLC Black Coating
3. Lugs Drilled-through
4. Crown Screw down, SKX-style
5. Springbars Universal
Compatibility
1. Movements NH34, NH35, NH36, NH38, NH70, NH71, NH72
2. Dials 28.5mm
3. Chapter Rings SKX013-spec (required, sold separately)
4. Hands NH movement compatible
5. Crowns SKX-style
6. Bracelets & Straps Lucius Atelier bracelets and 20mm straps
Water Resistance
1. Water Resistant 200m / 20 ATM (tested)
New to Seiko modding? You can build the whole watch right here — every part is an Add dropdown on this page. The case ships as a bare body (with the bezel click spring and the crystal & caseback gaskets); you choose the rest and spec it exactly how you like.

Ten parts make a complete watch. You've got the case — here are the other nine, each a dropdown above, in the order you'd assemble them:
1. Bezel — the rotating dive bezel. Browse SKX013 bezels .
2. Bezel insert — the marked ring that sits inside the bezel. Browse inserts .
3. Caseback — seals the case; solid, or sapphire to show off a decorated movement. Browse SKX013 parts .
4. Chapter ring (required — seats the dial) — SKX013-spec; without it the dial sits too low and the hands won't clear. Browse chapter rings .
5. Crown (required) — screw-down, SKX-style. Browse SKX013 crowns .
6. Crystal — flat sapphire, pressed into the case. Browse SKX013 crystals .
7. Dial (28.5mm) — match it to your movement: date, day+date, or no-date. Browse dials .
8. Hands — paired to your dial; most modders match lume colour across hands and markers. Browse hands .
9. Movement — NH35 (date), NH36 (day+date), NH38 (no date), or fit your own. Browse NH movements .
Building an NH34 GMT? Add a GMT 24H hand (its own dropdown) and a GMT / NH34-specific dial — the 24-hour hand is the one optional extra on top of the ten.

Optional extras (also dropdowns above): a 20mm bracelet or leather strap , and a Côtes de Genève decorated bridge + rotor — only visible through a sapphire caseback, and our bridges pair only with our rotors, so pick them together.

Want it built for you?

Under ADD, tick Assemble Watch (+SGD $100) 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.

Heads up: assembled watches need 2–5 business days of workshop time before they ship.

Prefer to build it yourself? See the How To Mod tab for step-by-step tutorials.
1. 1x Watch Case Body
2. 1x Bezel Click Spring
3. 1x Crystal Gasket
4. 1x Caseback Gasket
Springbars are included with our bracelets and straps.

All photos of watches with modification parts are for illustration purposes only and are not included with the case purchase.

Which caseback should I choose for the SKX013 Watch Case 38mm DLC Black Edition?

Two SKX013-spec casebacks, both sold separately: a solid caseback for a fully closed back, or a sapphire (exhibition) caseback to reveal a decorated movement, bridge and rotor. Either keeps the DLC case rated to 200m / 20 ATM. Choose solid for a clean closed back; choose sapphire if you've added a decorated bridge and rotor worth seeing.

You may also like