DIY Watchmaking Kit - Automatic GMT with Silver stainless steel 24-hour bezel. Powered by automatic Seiko GMT movement

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

This dive watch features a stainless steel blue 24‑hour bezel, a white sandwich dial with BGW9 lume, and an orange GMT hand for a functional yet stylish look. Comes with two FKM rubber straps—white and orange—for easy color swaps and versatile styling.

The DIY kit includes:

• Complete components of one 42mm GMT Diver series mechanical watch 

  Watch Case:	42mm DWC Diver Case Material: SS316L Stainless Steel Crystal: Sapphire double dome with Anti-Reflective coating Case size: 42mm (42mm bezel, 41mm body) Lug size: 22mm Lug-to-lug: 47.5mm Thickness: ~14mm Water-resistant: 20ATM (assuming correct assembly) Crown: Screw-down
  Case Back:	Stainless steel Exhibition case back (Hardened Mineral Crystal)
  Chapter Ring:	CR-01-NH 24 hours GMT Chapter ring for DIY Watch Club Divers and Expedition Watch - Blue / White Dual-Tone Chapter Ring (white markers on blue, black markers on white)
  Bezel:	42mm DWC Classic Bezel (Stainless Steel)
  Bezel function:	unidirectional 120-click / bi-directional 24-click (updated 2023 Q4)
  Bezel Insert:	39.4mm Stainless Steel GMT Bezel Insert with Japan BGW9 SuperLume markers (Silver - Type B)
  Watch dial:	28.5mm DWC D03 GMT Sandwich Dial - Fine silver coated edition with Japan BGW9 Superlume
  Hands:	PVD Diver Hands with Japan BGW9 Superlume (TMI NH Series)  Orange GMT hand (24 hours hand) with C2 lume
  Movement:	TMI NH34 GMT movement by Seiko
  Strap:	22mm DIY Watch Club FKM Rubber Watch Band - Orange & White

• Watchmaking tool options - GMT hand installation tool is included in every GMT set:
• DWC Essential tools for this experience
• 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：★★★★★ (With huge potential for modding due to Seiko Mod compatibility. Details below)

Difficulty Level: ★★★★ (without the new second hand installation tool)

• Hand installation will be slightly more challenging than regular 3-hand watch installation
• Key challenge: second hand installation

Difficulty Level: ★★★ (With the new second hand installation tool. Details below)

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  A post shared by DIY Watch Club | Watchmaking (@diywatchclub)

• We made the hardest step much easier!

  We know. Installing that second hand for the first time can seem a little daunting. That's why we spent a year to invent this second hand installation tool for everyone.

  Get the tool here.

DWC PRO WATCHMAKING TOOL KIT: 

This 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: DIY Watch Club Pro Watchmaking Tools Set

SEIKO MOD COMPATIBILITY:

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

https://diywatch.club/en/blog/parts-compatibility-for-seiko-mod

MODDING SUGGESTIONS

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