Tudor Black Bay 58 925, 39mm 925 silver case, satin finished open case back with sapphire crystal, taupe, domed, unidirectional rotatable bezel in 925 silver with 60-minute graduated disc in matt taupe anodised aluminium and silver gilded markings and numerals, manufacture calibre MT5400 (COSC) self-winding mechanical movement with bidirectional rotor system, taupe fabric strap with 925 silver buckle, domed sapphire crystal, waterproof to 200m (660 ft)