Tudor Black Bay Chrono S&G, 41mm steel case with polished and satin finish, champagne-colour with black counters, domed, fixed 18 ct yellow gold bezel with matt black anodised aluminium disc with tachymetric scale, yellow gold markings, manufacture calibre MT5813 (COSC) self-winding mechanical movement with bidirectional rotor system, black fabric strap with buckle, domed sapphire crystal, waterproof to 200m (660 ft)