TUDOR Black Bay Chrono S&G

41mm steel case, Steel and yellow gold bracelet
CASE: 41mm steel case with polished and satin finish
BEZEL: Fixed yellow gold bezel with matt black anodised aluminium disc with tachymetric scale, yellow gold markings
MOVEMENT: Manufacture Calibre MT5813 (COSC) Self-winding mechanical movement with bidirectional rotor system
DIAL: Black, domed
WINDING CROWN: Yellow gold screw-down winding crown with the TUDOR rose in relief Yellow gold screw-down pushers at 2 and 4 o'clock
CRYSTAL: Domed sapphire crystal
WATERPROOFNESS: Waterproof to 200m (660 ft)
BRACELET: Riveted steel and yellow gold bracelet, polished and satin finish, with folding clasp and safety catch