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: Silver
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