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DIY Watch Kit | All Black GMT Diver | Seiko NH34 Automatic GMT | 24hr Stainless Steel PVD Bezel | DWC-D03
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DIY Watch Kit | All Black GMT Diver | Seiko NH34 Automatic GMT | 24hr Stainless Steel PVD Bezel | DWC-D03

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All Black PVD GMT watch Kit - PVD Diver GMT watch with a PVD stainless steel 24-hour bezel. Powered by automatic Seiko GMT movement

With the introduction of the Seiko NH34 movement (a.k.a. Seiko 4R34), an affordable GMT Mod is finally possible for the Seiko Mod community.

The PVD steel 24-hr bezel insert, black sandwiched BGW9 dial, and a red GMT hand combine to make a beautiful Seiko-powered GMT Black watch with Red highlight. 

This is likely one of the best-looking black-out GMT watches we've created :)

The DIY kit includes:

  • Complete components of one 41mm GMT Diver series mechanical watch 

    Watch Case: DWC Diver series 41mm 316L stainless steel case with PVD black plating (Sapphire Dome Crystal) - 20ATM
    Case Back: Exhibition case back (Mineral Crystal)
    Chapter Ring: CR-01-NH Black chapter ring with white marking (TMI NH Series)
    Movement Holder: MH-DI-NH (TMI NH Series)
    PVD black classic thin profile bezel
    Click Spring: Unidirectional 120-click
    Bezel Insert:
    Diver Stainless Steel GMT Bezel Insert (Black - Type B)
    Watch Crown:
    CN-DI-01 Screw-down dive watch crown (Stem pre-assembled for TMI NH Series)
    Watch dial: DWC D03 GMT Sandwich Dial 
    (Japan BGW9 Superlume)
    Hands: Silver Diver Hands with Japan BGW9 Superlume (TMI NH Series) 
    Red GMT hand (24 hours hand) with C2 lume
    Movement: TMI NH34 GMT movement by Seiko
    Strap: DWC Black FKM Rubber Band 22mm
  • Watchmaking tool options:
    • DWC tools with Brown PU Bag / Basic tool with Cardboard toolbox
    • DWC professional watchmaker tools with Box upgrade
    • No tools - for those who already have watch repair tools. Please make sure you have hand removal tools and hand-setting tools (usually not included in watch repair kits)
  • Complete video instructions (English, Cantonese & Mandarin)

Time required:120~ mins (Simply enjoy the watchmaking process at your own pace)

Mod potential:★★★

Challenging Level : ★★★★★ (Hand installation will be more challenging than regular 3-hand watch installation)


DIY Watch Club - Watchmaking tool - Profession Tools box setThis is our Pro Tool Kit, a DWC in-house design from top to bottom. This is a lot more than a mere step up from standard Amazon watch-making tools; it is a collection of tools we designed and crafted to give you the best watchmaking experience possible.

And in watchmaking, just like many other crafts, the quality of the tools does affect the quality of the outcome.

Learn more about it here: What Makes a Good Watchmaking Tool


This dive watch is partially compatible with Seiko Mods. For detail please check out our blog post here:


DIY WATCH CLUB - Custom Rotor for seiko NH35, NH34

A Seiko made original rotor with Côtes de Genève finish, customized by us. A perfect icing on the cake for the watch you assembled yourself or a mod you are proud of. Best paired with an exhibition case back. Design your custom rotor