41 mm steel case with polished and satin finish. Fixed yellow gold bezel with matt black anodized aluminium disc with tachymetric scale, yellow gold markings. Steel and yellow gold bracelet. Manufacture Calibre MT5813 (COSC), self-winding mechanical movement with bidirectional rotor system. Includes a champagne-color dial with domed black counters and domed Sapphire crystal. This watch has a yellow gold screw-down winding crown with the TUDOR rose in relief and yellow gold screw-down pushers at 2 and 4 o'clock. 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. This model is now available in an S&G version.