The quick answer.
BODERRY Admiral GMT Bronze Green is a 40 mm bronze gmt diver watch at $389 after code SEBASTIANBASSOL (before code $399). We recommend it for a buyer who wants an automatic GMT with a green dial, bronze patina and a rubber strap in a 40 mm case.
Why it belongs on the shortlist.
The useful distinction here is that BODERRY combines a GMT layout with a case material that visibly ages. The CuSn8 case, earthy green dial and burgundy-and-green bezel make the Admiral feel warmer and more personal than a standard steel diver, while sapphire and a 20 mm FKM strap keep the package practical. The code test confirms $10 off this exact $399 variant; the case’s changing finish, rather than a claimed performance advantage, is the reason to choose it over the titanium version.
Bronze is the reason to choose this Admiral.
The CuSn8 case brings a warm tone that works with the green dial and two-tone 24-hour bezel. Unlike titanium or coated steel, bronze changes with exposure and wear; BODERRY says that natural oxidation can darken the surface and may appear as spots under the protective film. We like the evolving finish when the buyer expects it, rather than treating the watch as a bronze-colored case that will stay pristine.
The GMT feature gives the color a travel-watch purpose.
BODERRY identifies the TMI NH34 as an automatic GMT movement and lists four hands with a calendar display and hacking. The GMT hand and numbered bezel make a second time reference useful for travel or keeping another time zone in view. The product page does not publish a model-specific reserve figure or explain the setting sequence, so check the included instructions before relying on it for frequent time-zone changes.
A familiar 40 mm size still has a 49 mm span.
The listed diameter is 40 mm, with 49 mm lug-to-lug, 13 mm thickness and a 20 mm strap. Those dimensions give the watch useful wrist presence without a very wide case, but the 49 mm span is worth comparing against a watch that already fits you. The green FKM strap uses a spring-loaded folding steel clasp; BODERRY says it has not released the bronze clasp version yet.
Read the 200 m figure as the manufacturer rating.
BODERRY lists 20 ATM / 200 m and a screw-down crown, but the page we checked does not state ISO 6425 certification. That makes the number useful as a published specification without proving a dive-watch certification. Follow the brand’s water-use and maintenance instructions, and choose a certified instrument if that is part of the requirement.
The details, at a glance.
- SKU
- BD-A12B-03
- Case diameter
- 40 mm
- Lug-to-lug
- 49 mm
- Thickness
- 13 mm
- Lug width
- 20 mm
- Case
- CuSn8 bronze case, aluminum bezel and green FKM rubber strap
- Crystal
- Anti-reflective sapphire crystal
- Movement
- TMI NH34 automatic GMT
- Listed functions
- GMT hand, 24-hour bezel, calendar date, hacking feature and screw-down crown
- Water resistance
- 20 ATM / 200 m
- Strap / bracelet
- Green FKM rubber strap with a spring-loaded folding steel clasp
What draws us in
- CuSn8 bronze and a green dial give this GMT a distinctive warm color pairing
- TMI NH34 automatic GMT, sapphire and a listed 20 ATM / 200 m rating
- 40 mm diameter, 49 mm lug span, 13 mm thickness and 20 mm FKM strap
Before you choose
Bronze naturally oxidizes, so the case will darken and become less uniform. BODERRY says occasional dark spots can appear if air reaches the watch beneath its protective film in transit. It lists 20 ATM / 200 m, but the product page does not state ISO 6425 certification; treat that as the manufacturer rating and choose a certified dive watch if the standard matters.
Who it suits.
A buyer who wants an automatic GMT with a green dial, bronze patina and a rubber strap in a 40 mm case.
When to choose something else.
Choose the titanium Admiral if you want a more uniform case finish and metal bracelet, or an ISO-certified diver if your water use requires that documented standard.
Warranty, returns and ownership.
BODERRY lists a 24-month movement warranty and a 30-day return period for eligible watches that have not been used, worn or strapped on. Free shipping is listed for most countries, but local taxes and import fees may remain payable. Check the complete terms and delivered cost for your location before ordering.
Closest alternatives.
- BODERRY Admiral GMT Black · $389 listed (2026-10-17): The closest functional alternative: the same 40 mm NH34 GMT layout, 49 mm span, 13 mm thickness and 20 ATM listing, but with a titanium case and bracelet. Its exact $389 variant tested at $379 with the same code. Choose it for a more uniform metal finish and bracelet; the bronze model costs $10 more before or after code.
- BODERRY SeaTurtle Ocean Bronze Automatic Diver (Sea Blue/FKM) · $219 listed (2026-10-17): A lower-cost bronze diver from BODERRY at $219, or $209 after its tested code, with an NH35, blue dial and FKM strap. Choose it if the bronze-and-rubber look matters more than tracking a second time zone; its stated water rating is 100 m instead of this GMT’s 200 m.
Think beyond the diameter.
The published 49 mm lug-to-lug gives you a useful starting point for checking overhang. Use our wrist-fit guide and compare the proportions with a watch you already enjoy wearing.
BODERRY partner code and offer terms. Our cart test applied SEBASTIANBASSOL to this exact variant on October 17, 2026. Use the product link below and confirm the final total; shipping and taxes are not included in the item price shown.
Where to buy.
Specifications and product photography: BODERRY official product page (checked October 17, 2026). Find Admiral GMT Bronze Green at BODERRY through our partner link and search for the selected option there. How we choose.
A few good questions.
What is the discount code for the BODERRY Admiral GMT Bronze Green?
The BODERRY discount code is SEBASTIANBASSOL for $10 off at boderry.com. In our cart test it lowered this model from $399 to $389 before shipping and taxes. Every code and tested price: https://watchritual.com/promo/boderry
Does the BODERRY Admiral GMT Bronze Green show a second time zone?
BODERRY calls the TMI NH34 an automatic GMT movement and lists a four-hand display with a calendar. The product page does not explain the setting sequence, so check the included instructions before relying on it for frequent time-zone changes.
Will the BODERRY Admiral GMT Bronze Green change color?
Yes. BODERRY says its CuSn8 bronze case naturally oxidizes and will develop patina. The brand also notes that dark spots can appear if air reaches the case under its protective shipping film.
Can the BODERRY Admiral GMT Bronze Green be used for scuba diving?
BODERRY lists 20 ATM / 200 m water resistance and a screw-down crown, but the product page does not state ISO 6425 certification. Choose a specifically certified dive watch if that standard is required.
What size is the BODERRY Admiral GMT Bronze Green?
BODERRY lists a 40 mm diameter, 49 mm lug-to-lug span, 13 mm thickness and 20 mm lug width. It does not publish the full watch weight or a model-specific power reserve on the product page.
What does the BODERRY Admiral GMT Bronze Green cost with the Watch Ritual code?
The price before code was $399. In our cart test on October 17, 2026, SEBASTIANBASSOL lowered the tested variant to $389, saving $10 before shipping and taxes. This result applies to this exact item and variant.
