TUDOR watch. Black Bay One 36 S&G. Steel case with polished and satin finish. Steel and yellow gold bracelet, polished and satin finish, with steel “T-fit” folding clasp and safety catch. Flat sapphire crystal. 36mm case. Champagne-colour dial with decoration and diamond hour markers, flat. Fixed bezel in yellow gold set with diamonds. Yellow gold screw-down winding crown. Manufacture Calibre MT5400 (COSC) Self-winding mechanical movement with bidirectional rotor system. Waterproof to 100M.