43-mm bronze case with bronze-colored PVD-treated steel case back and satin finish + Unidirectional rotatable bezel in bronze with 60-minute graduated disk in matte slate gray anodized aluminum + Manufacture Caliber MT5601 (COSC) Self-winding mechanical movement with bidirectional rotor system + Bronze screw-down winding crown adorned with an engraved TUDOR rose + Domed sapphire crystal + Waterproof to 200 m (660 ft) + Slate gray fabric strap with bronze buckle