TUDOR watch. Black Bay Chrono S&G. Steel case with polished and satin finish. Black fabric strap with buckle. Domed sapphire crystal. 41mm case. Champagne-color dial with black counters, domed. 41mm case. Fixed yellow gold bezel with matt black anodized aluminium disc with tachymetric scale, yellow gold markings. Manufacture Calibre MT5813 (COSC) Self-winding mechanical movement with bidirectional rotor system. Date. Approximately 70 hour power reserve. Waterproof to 200M.