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    ⚙ CONFIGURATOR
    Build Your Own Visually

    SKX013 Diver 38 Black Ultra Thin Edition — side profile showing 10.86mm ultra-thin case thickness

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

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    Build Your Own Visually

  • SKX013 Diver 38 Black Ultra Thin Edition — side profile showing 10.86mm ultra-thin case thickness

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

    Seikonaut
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    Home / Bestsellers / SKX Crown II - Diamond - 8mm (DLC BLACK EDITION)
    SKX013 Crown II - Diamond - 8mm (DLC BLACK EDITION) - - - - Lucius Atelier - Swiss Quality Seiko Watch Mod Parts
    SKX013 Crown II - Diamond - 8mm (DLC BLACK EDITION) - - - - Lucius Atelier - Swiss Quality Seiko Watch Mod Parts
    SKX013 Crown II - Diamond - 8mm (DLC BLACK EDITION) - - - - Lucius Atelier - Swiss Quality Seiko Watch Mod Parts
    SKX013 Crown II - Diamond - 8mm (DLC BLACK EDITION) - - - - Lucius Atelier - Swiss Quality Seiko Watch Mod Parts

    SKX Crown II - Diamond - 8mm (DLC BLACK EDITION)

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

    The Diamond Crown II. 8mm, DLC Black. For the SKX013 & SKX007.

    New generation, visually slimmer profile. A conical crown from the unheated-cockpit days, when pilots' watches wore oversized crowns for thick gloves. This is that heritage, machined for a modern build — presence on the case side and grip to match.

    Machined from 316L stainless steel with a DLC black coating. Water pressure tested to 200m — like the SKX013 crown it replaces, properly installed and tightened it's Diver's-200m rated. A NH stem ships in the box, and it fits our SKX013 cases and the SKX007 family — plus the Explorer 36 Ultra Thin and Pilot 34 Ultra Thin. Crown II is cross-compatible: it fits both the SKX013 and the SKX007 family.

    The aviator's pick.
    Cockpit-era geometry on a modern build.

    Conical, oversized.
    Early-aviation geometry — presence on the case flank, grip in gloves.

    DLC black over 316L.
    The all-black finish — diamond-like carbon coating over machined 316L steel.

    200m rated.
    Water pressure tested to 200m — properly installed and tightened, same as the SKX013 crown.

    NH stem in the box.
    Ships with 1x NH stem, ready for the NH movement in your build.

    Heads up — fit & install

    Fits our SKX013 cases and the SKX007 family — plus the Explorer 36 Ultra Thin and Pilot 34 Ultra Thin. Crown II is cross-compatible: it fits both the SKX013 and the SKX007 family. 1x NH stem is included.

    New to this? Seiko Modding: The Complete Build Guide walks through the whole build.

    • Specs

      1. Quality Swiss Production Quality, ISO 9001 Certified
      2. Material 316L Stainless Steel
      3. Surface Finish Polished, DLC Black
      4. Diameter 8mm
      5. Thickness 4mm
      6. Fit Explorer Case 36mm UTE, Pilot Case 34 UTE, and our SKX013 Watch Cases
      1. 1x Crown
      2. 1x NH Stem

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

    • Fits our SKX013 cases and the SKX007 family — plus the Explorer 36 Ultra Thin and Pilot 34 Ultra Thin. Crown II is cross-compatible: it fits both the SKX013 and the SKX007 family.

      1x NH stem included in the box.

      Pairs with:

      1. SKX013 Mod Parts
      2. SKX007 & SRPD Mod Parts
      1. Seiko Modding: The Complete Build Guide (2026)

    Questions, Answered

    Everything worth knowing before you build.

    Which cases do these crowns fit?

    It depends on the generation — the Specs tab on each page lists the exact fit for the crown you're viewing. Crown II (including the 1908 Presage) is cross-compatible: it fits both SKX013 and SKX007 cases, and the 7mm designs also serve the SKX013 Diver 38. Original-generation crowns fit our SKX013 cases, plus the Explorer II 36 and GS Diver 36. The Big Crown fits the SKX013 Submariner 36 only. Buying a case? Choose the crown from the dropdown on the case's own page — it only shows crowns that fit.

    Do these crowns come with a stem?

    Yes — every crown ships with 1x NH stem in the box, ready for the NH movement in your build. You don't need to buy a stem separately.

    Are these crowns water-resistant?

    Yes — each crown is water pressure tested to 200m. Properly installed and tightened, it performs like the SKX013 crown it replaces: Diver's-200m rated.

    6mm or 7mm — which crown size should I pick?

    It's a proportion and grip call. 6mm sits closer to stock proportions; 7mm gives more presence on the case flank and more to grip when winding — it's our most popular pick. The 8mm Diamond is the biggest of the range, for builds that want the full oversized-pilot look. Size doesn't change what a given crown design fits — check each crown's Fit line in the Specs.

    Coin edge, knurled, onion or diamond — which grips best?

    Knurled designs grip better than coin edge, and a 7mm crown gives you more to hold than a 6mm. Onion and diamond shapes are picked for their look. If easy winding is the priority, go knurled in the larger size.

    What's the difference between Crown and Crown II?

    Crown II is the newer generation with a visually slimmer profile — and it's cross-compatible, fitting both SKX013 and SKX007 cases. The original SKX013 crowns stay in the range in coin edge, knurled and big-crown forms — pick whichever suits the case's look.

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