TUDOR Black Bay GMT S&G

41 mm steel case, Brown leather strap, 41 mm steel case with polished and satin finish, 48-notch bidirectional rotating bezel in yellow gold with 24-hours graduated matt brown and black anodised aluminium disc, Manufacture Calibre MT5652 (COSC) Self-winding mechanical movement with bidirectional rotor system Built-in architecture, Black, domed, Yellow gold screw-down crown, with the TUDOR rose in relief, with circular satin-brushed steel winding crown tube, Domed sapphire crystal, Waterproof to 200 m (660 ft), Brown leather strap with steel folding clasp and safety catch.