Five year guarantee. 41 mm steel case with polished and satin finish. Manufacture Calibre MT5813 (COSC). Self-winding mechanical movement with bidirectional rotor system. Power reserve of approximately 70 hours. Yellow gold screw-down winding crown with the TUDOR rose in relief, yellow gold screw-down pushers at 2 and 4 o'clock. Waterproof to 200 m (660 ft). Fixed yellow gold bezel with matt black anodised aluminium disc with tachymetric scale, yellow gold markings. Champagne-colour dial with black counters and domed sapphire crystal. Riveted steel and yellow gold bracelet, polished and satin finish, with folding clasp and safety catch.