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Stainless Steel
41mm
Opaline White - Dial
Anodised Aluminium and Stainless Steel - Bezel
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The striking Tudor Black Bay GMT M79830RB combines vintage-inspired design with modern travel functionality, making it one of Tudor’s most versatile sports watches. Featuring a 41 mm stainless steel case, an opaline white dial, and the iconic burgundy-and-blue “Pepsi” bezel, the Black Bay GMT delivers bold presence with exceptional practicality for frequent travellers and collectors alike.
Powered by the COSC-certified Manufacture Calibre MT5652, this GMT watch allows the wearer to track multiple time zones with precision and reliability. Its domed sapphire crystal, riveted steel bracelet, and classic snowflake hands reinforce Tudor’s heritage-inspired aesthetic while maintaining modern durability and comfort.
Designed for adventure across continents and time zones, the Black Bay GMT balances rugged tool-watch capability with timeless everyday wearability.
The Tudor Black Bay GMT M79830RB is a perfect fusion of functionality, vintage character, and modern engineering. Inspired by classic GMT watches of the golden age of travel, it brings together Tudor’s signature dive-watch DNA with a practical dual-time complication.
Its iconic burgundy and blue bidirectional bezel allows for easy tracking of a second time zone, making it an ideal companion for international travel, business trips, and everyday versatility. The opaline white dial creates strong contrast against the snowflake hands and markers, ensuring excellent readability in all lighting conditions.
Equipped with the in-house COSC-certified MT5652 movement, the watch delivers exceptional precision along with an impressive 70-hour power reserve. The robust 200-metre water resistance, screw-down crown, and riveted steel bracelet further reinforce its capability as a true modern tool watch.
For enthusiasts seeking a GMT watch with vintage charm, strong wrist presence, and outstanding value in luxury watchmaking, the Black Bay GMT “Pepsi” stands as one of the most compelling options available today.

Every watch in our collection undergoes a multi-point inspection by master watchmakers to ensure 100% authenticity.

We prioritize watches that come with original boxes and papers, preserving the full provenance and investment value.

Shop with total confidence. We offer a no-questions-asked return policy if the watch doesn't meet your expectations.

Leverage your collection. We offer the most competitive market rates for trades, selling and other direct purchases.

Our in-house master watchmakers are certified to service and maintain the most complex horological complications and get the best service done.

Every timepiece is backed by our comprehensive 24-month mechanical as well as replacement warranty for your total peace of mind.
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Step 3
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Step 4
Inspect your watch, verify the documentation, and welcome a new masterpiece to your collection.
Ensuring a perfect fit for your wrist
Wrist Size (Circumference) | Recommended Case Size | Bracelet Adjustment |
|---|---|---|
| 6.0 - 6.5 inches | 31mm - 36mm | Small / Petite |
| 6.5 - 7.0 inches | 36mm - 40mm | Medium / Standard |
| 7.0 - 7.5 inches | 40mm - 42mm | Large / Professional |
| 7.5+inches | 42mm - 46mm | Extra Large |
* This guide is for reference only. Personal style and comfort preferences vary.