TUDOR Black Bay GMT S&G M79833MN-000341 mm steel case, Brown leather strap Case: 41 mm steel case with polished and satin finish Bezel: 48 notch bidirectional rotating bezel in yellow gold with 24 hours graduated matte brown and black anodized aluminum disc Movement: Manufacture Calibre MT5652 (COSC) Self winding mechanical movement with bidirectional rotor system Built in architecture Dial: Black, domed Winding Crown: Yellow gold screw down crown, with the TUDOR rose in relief, with