Ref. No M79680-0001 Description Tudor Black Bay 41mm Manufacture Calibre MT5601 Case 41mm steel case with polished and satin finish Lugs: 22mm lug width Case thickness: 12.2mm Winding Crown Screw-down crown with the TUDOR rose in relief Movement: Manufacture Calibre MT5601 (COSC) Self-winding mechanical movement with bidirectional rotor system Bezel: Stainless steel bezel with polished and satin finish Crystal: Flat sapphire crystal Waterproofness: Waterproof to 100m (330 ft) Guarantee: Five-year transferable guarantee with no registration or periodic maintenance checks required Bracelet Stainless steel bracelet, polished and satin finish, with TUDOR “T-fit” folding clasp and safety catch Size Guide