Tudor Black  Bay, 41mm steel case with polished and satin finish, black with grey index, domed, steel unidirectional rotatable bezel with disc in matt blue anodised aluminium, manufacture calibre MT5602 (COSC) self-winding mechanical movement with bidirectional rotor system, blue fabric strap with buckle, domed sapphire crystal, waterproof to 200m (660 ft)