TUDOR watch. Black Bay GMT S&G. Steel case with polished and satin finish. Brown leather strap with steel folding clasp and safety catch. Domed sapphire crystal. 41mm case. Black dial. 48-notch bidirectional rotating bezel in yellow gold with 24-hours graduated matt brown and black anodized aluminium disc. Manufacture Calibre MT5652 (COSC) Self-winding mechanical movement with bidirectional rotor system. Date. Approximately 70 hour power reserve. Waterproof to 200M.