TUDOR Black Bay 31 S&G

31mm steel case, Steel and yellow gold bracelet CASE: 31mm 316L steel case with polished and satin finish BEZEL: Fixed bezel in yellow gold MOVEMENT: Manufacture Calibre MT5201 (COSC) Self-winding mechanical movement with bidirectional rotor system Integrated construction DIAL: Champagne-colour WINDING CROWN: Yellow gold screw-down winding crown with the TUDOR rose in relief CRYSTAL: Flat sapphire crystal WATERPROOFNESS: Waterproof to 100m (330 ft) BRACELET: Steel and yellow gold bracelet, polished and satin finish, with steel “T-fit” folding clasp and safety catch