|Manufacturer's Reference #
|Self-winding mechanical movement with bidirectional rotor system, Manufacture Caliber MT5813 (COSC)
|41 mm diameter
41 mm steel case with polished and satin finish. Fixed steel bezel with matte black anodized aluminum disc with tachymetric scale and silver markings. Manufacture Caliber MT5813 (COSC), self-winding mechanical movement with date aperture at 6 o'clock. Opaline domed dial with black counters. Screw-down steel pushers at 2 o'clock and 4 o'clock. Domed sapphire crystal. Waterproof to 200 m (660 ft).
The famous Black Bay family introduced the first TUDOR chronograph, powered by the self-winding Manufacture Caliber MT5813, with a column wheel and vertical clutch.