TUDOR Black Bay 31 S&G

31 mm 316L steel case with polished and satin finish. Fixed bezel in yellow gold set with diamonds. Silver with diamond hour markers. Self-winding mechanical movement with bidirectional rotor system. Power reserve of approximately 50 hours.  Waterproof to 100 m (330 ft). Integrated construction. Steel and yellow gold bracelet, polished and satin finish, with steel “T-fit” folding clasp and safety catch. Yellow gold screw-down winding crown with the TUDOR rose in relief