Tudor
Black Bay GMT
M79830RB-0001
An extension of the Black Bay line, the Black Bay GMT is equipped with a highly functional complication: a multiple time-zone function, also known as a GMT function. The Black Bay GMT, like its many predecessors, is recognisable by its rotatable bezel, which sports a deep blue and burgundy colour theme.
TECHNICAL DETAILS
Collection
Black Bay GMT
Reference Number
79830RB
Description
41 mm steel case, steel bracelet
Material
Steel
Case
41 mm steel case with polished and satin finish
Bezel
Bidirectional rotatable 48 notches bezel in steel with 24-hour graduated anodised aluminium disc in matt burgundy and blue
Bracelet
Steel
Movement
Manufacture Calibre MT5652 (COSC) Self-winding mechanical movement with bidirectional rotor system Built-in architecture
Dial
Dark-Coloured Dial
Winding
Steel screw-down winding crown, with the TUDOR rose, with circular satin-brushed steel winding crown tube
Crystal
Domed sapphire crystal
Waterproofness
Waterproof to 200 m (660 ft)
Like its many predecessors, the Black Bay GMT is recognisable by its rotatable bezel in deep blue and burgundy. But this version distinguishes itself from other models in the Black Bay line with a matt bezel. The Black Bay GMT features a 4 mm satin-brushed steel case, which is waterproof to 200m (660ft). Luminescent hour markers are set against the black dial to ensure legibility at night — and in all conditions.
One of the most prominent features of the Black Bay GMT is the bidirectional, rotatable bezel, which is calibrated for 24 hours. The 12 daylight hours are on the burgundy section and the night-time hours on the blue. Additional time zones can be indicated by a red Snowflake hand, which traverses the dial in 24 hours. The Black Bay GMT comes with a choice of a riveted steel bracelet with polished and satin finish, a “Terra di Siena” brown leather strap with folding clasp and safety catch, or a black fabric strap with a burgundy band.