TUDOR Black Bay One 41

41mm steel case, Steel bracelet
CASE: 41mm steel case with polished and satin finish
BEZEL: Stainless steel bezel with polished and satin finish
MOVEMENT: Manufacture Caliber MT5601 (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