Black Bay One 31

31mm steel case, Steel bracelet

CASE: 31mm stainless steel case with polished and satin finish

BEZEL: Stainless steel bezel with polished and satin finish

MOVEMENT: Manufacture Calibres MT5201 (COSC) Self-winding mechanical movement with bidirectional rotor system

DIAL: Blue

WINDING CROWN: Screw-down crown with the TUDOR rose in relief

CRYSTAL: Flat sapphire crystal

WATERPROOFNESS: Waterproof to 100m (330 ft)

BRACELET: Stainless steel bracelet, polished and satin finish, with TUDOR “T-fit” folding clasp and safety catch