TUDOR watch. Black Bay 41. Steel case with polished and satin finish. Steel bracelet with satin finish, with folding clasp and safety catch. Sapphire crystal. 41mm case. Blue dial. Smooth steel bezel with polished finish. Self-winding mechanical movement, Calibre T600. Approximately 38 hours power reserve. Screw-down winding crown. Waterproof to 150M.