TUDOR Black Bay GMT
Ref. M79830RB-0010
The 41mm stainless steel case features a refined mix of polished and satin finishes, paired with the signature burgundy and blue 24-hour bezel. The bidirectional rotatable bezel allows you to track a second time zone, while the distinctive snowflake hands ensure instant legibility.
The domed opaline dial adds a clean, luminous contrast against the rich bezel tones, giving this reference a fresh and contemporary presence within the Black Bay line.
At its heart is the COSC-certified Manufacture Calibre MT5652, delivering a robust 70-hour power reserve and independent local hour adjustment for effortless time zone changes without stopping the watch.
Finished on the riveted steel bracelet with folding clasp and safety catch, the Black Bay GMT offers comfort, durability, and unmistakable character.
Key Specifications
Case: 41mm stainless steel, polished and satin finish
Thickness: 14.6mm
Lug Width: 22mm
Bezel: Bidirectional 48-notch bezel with burgundy and blue anodised aluminium 24-hour disc
Dial: Domed opaline with galvanic finish
Crystal: Domed sapphire crystal
Movement: Manufacture Calibre MT5652, COSC-certified, self-winding
Power Reserve: Approximately 70 hours
Water Resistance: 200m / 660ft
Bracelet: Riveted steel bracelet with folding clasp and safety catch
A true traveler’s GMT with heritage styling, modern engineering, and everyday versatility.


