TUDOR Black Bay 31 S&G 31 mm steel case, Steel and yellow gold bracelet. 31 mm 316L steel case with polished and satin finish. Fixed bezel in yellow gold.  Yellow gold screw-down winding crown with the TUDOR rose in relief. Manufacture Calibre MT5201 (COSC) Self-winding mechanical movement with bidirectional rotor system Integrated construction. Black dial. Flat sapphire crystal. Steel and yellow gold bracelet, polished and satin finish, with steel “T-fit” folding clasp and safety catch. Waterproof to 100 m (330 ft).

Brand: TUDOR M79603-0001
Tudor Bracelet Sizing Guide