







Product Description
Offered here is a 2021 Tudor Black Bay GMT, reference 79830RB a modern tool watch executed the traditional way. The 41mm stainless-steel case carries Tudor’s purposeful matte finishing and balanced proportions, while the bi-color red and blue aluminum bezel delivers instant recognition without excess. This is functional design, not theatrics.
The black dial is clean, legible, and unmistakably Tudor. Snowflake hands provide excellent visibility, while the red GMT hand independently tracks a second time zone proper traveler functionality, done correctly. Inside beats Tudor’s in-house MT5652 caliber, COSC-certified and engineered for real-world reliability with a robust architecture and 70-hour power reserve. No gimmicks, no fragility.
Condition is very good overall, with only light, honest wear visible on the case and clasp consistent with careful ownership. Nothing distracting, nothing concealed. The watch presents clean on the wrist and wears exactly as intended.
This example includes the inner and outer Tudor boxes and the original warranty card dated February 2021, making it a correct and complete set. A serious GMT for someone who values substance, durability, and long-term usability over short-term hype.
| Brand | Tudor |
|---|---|
| Model | Black Bay GMT |
| Reference | 79830RB |
| Year | 2021 |
| Country/Region of Manufacture | Switzerland |
| Condition | Pre-Owned – Very Good |
| Gender | Unisex |
| Age Group | Adult |
| Style | Luxury Tool / Travel Watch |
| Display | Analog |
| Case Material | Stainless Steel |
|---|---|
| Case Color | Silver |
| Case Size | 41 mm |
| Case Thickness | Approx. 14.6 mm |
| Case Shape | Round |
| Case Finish | Satin / Matte Brushed |
| Bezel Type | Bi-Directional 24-Hour |
| Bezel Material | Aluminum (Red/Blue) |
| Crystal | Sapphire |
| Caseback | Solid Stainless Steel |
| Crown | Screw-down |
| Dial Color | Black |
|---|---|
| Dial Finish | Matte |
| Hour Markers | Applied Indices |
| Hands | Snowflake |
| Lume | Yes (Hour markers & hands) |
| Features | Date window, GMT scale |
| Movement | Tudor MT5652 (Automatic, In-House) |
|---|---|
| Chronometer | COSC Certified |
| Power Reserve | ~70 Hours |
| Escapement Type | Swiss Lever |
| Frequency | 28,800 vph |
| Functions | Hours, Minutes, Seconds, Date, Independent GMT Han |
| Bracelet Material | Stainless Steel |
|---|---|
| Bracelet Style | Oyster-Style |
| Clasp | Folding Clasp with Safety |
| Bracelet Condition | Light wear consistent with use |
| Water Resistance | 200 m / 660 ft |
|---|---|
| Included | Inner & outer box, warranty card (February 2021) |
| Condition Type | Pre-Owned |
| Seller Warranty | Yes fully authenticated and inspected |
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