Seiko GMT Mod – Bruce Wayne Premium Black Dial
Taxes included.
GMT mod featuring a black dial with a refined grey-and-black bezel style, built for a clean premium everyday look.
Free Worldwide ShippingTracked delivery, ships in 7–9 business days
1-Year WarrantyCovered movement warranty
14-Day ReturnsFrom the day it arrives
Hand-AssembledBuilt and checked before shipping
Description
The GMT Bruce Wayne is a Seiko GMT mod with a black dial and a grey-and-black bezel: the darker, more understated cousin of the Batman. Its NH34 GMT automatic movement adds an extra hand that tracks a second time zone, so you can keep home time while you travel, or follow a colleague abroad from your desk. It has about 41 hours of power reserve and a sapphire crystal.
- Case Size: 40mm
- Movement: NH34 GMT Automatic, approximately 41-hour power reserve
- Crystal: Sapphire glass
- Water Resistance: 3 ATM, splash and rain resistant
- Case Material: 316L stainless steel
- Bracelet/Strap: Oyster or Jubilee bracelet
- Lug Width: 20mm
Choose an Oyster or Jubilee bracelet on the 40mm 316L stainless steel case. It is our best-selling GMT mod. Prefer more color? See the GMT Batman, or browse all Seiko GMT mods.
Hand-built and checked by Timelab before it ships. Timelab Mods is independent and not affiliated with Seiko or the brands whose designs inspire our watches.
Shipping & Delivery
We offer worldwide tracked shipping. Orders are prepared carefully before dispatch, and delivery times may vary depending on your country and local customs processing.
Returns
Returns are accepted within 14 days if the watch is unused, unworn, and returned in its original condition and packaging.
Warranty
All watches include a 1-year movement warranty. Damage caused by misuse, water exposure, accidental impact, normal wear, or unauthorized repairs is not covered.
About TimeLab Mods
Each TimeLab Mod is hand-assembled using selected aftermarket parts and checked before shipping. Our focus is clean design, reliable movements, good finishing, and a smooth customer experience.
Care Guide
Avoid exposing the watch to water, steam, strong impacts, or magnetic fields. Keep the crown pushed in, clean the watch gently with a soft cloth, and store it safely when not in use.
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Why Timelab Mods?

Built by hand
Every watch is assembled and checked by our watchmakers, one at a time.






