On the Black Bay GMT, the reference time is indicated by an angular "Snowflake" hand, an aesthetic hallmark of TUDOR, which completes a lap of the dial every 24 hours. Local time is indicated by another, shorter "Snowflake" hand set by a jumping hour, which can be moved either backwards or forwards. The date, displayed through an aperture positioned at 3 o'clock, is connected to the local time hand so that when setting the time and passing midnight in retrograde, it instantly jumps to the previous day. A very practical and technical detail for the user. The 24-hour graduated bidirectional rotating bezel and "24-hour" hand mean you can also keep track of a third time zone. On the anodised aluminium disc of the S&G models, the graduations for the twelve daylight hours are gold-coloured on the brown section with the night-time hours on the black section.

CASE

41 mm steel case with polished and satin finish

Lugs: 22mm lug width

Case thickness: 14.6mm

BEZEL

48-notch bidirectional rotating bezel in yellow gold with 24-hours graduated matt brown and black anodised aluminium disc 

DIAL

Black, domed

Domed sapphire crystal

Manufacture Calibre MT5652  (COSC)

Self-winding mechanical movement with bidirectional rotor system

Power reserve of approximately 70 hours

WINDING CROWN

Yellow gold screw-down crown, with the TUDOR rose in relief, with circular satin-brushed steel winding crown tube

Waterproof to 200 m (660 ft)

Riveted steel and yellow gold bracelet with polished and satin finish

FIVE YEAR GUARANTEE

Five-year transferable guarantee with no registration or periodic maintenance checks required

REF: M79833MN-0001