TUDOR Black Bay Chrono

41mm steel case, Steel bracelet
CASE: 41mm steel case with polished and satin finish
BEZEL: Fixed 316L steel bezel with matt black anodised aluminium disc with tachymetric scale and silver markings
MOVEMENT: Manufacture Calibre MT5813 (COSC) Self-winding mechanical movement with bidirectional rotor system
DIAL: Opaline with black counters, domed
WINDING CROWN: 316L steel screw-down pushers at 2 o'clock and 4 o'clock
CRYSTAL: Domed sapphire crystal
WATERPROOFNESS: Waterproof to 200m (660 ft)
BRACELET: Riveted 316L steel bracelet with polished and satin finish with folding clasp and safety catch