This is the bezel for theWA1410 or 370.508 Formula 1 Series watch. The size is 27mm from side to side. The bezel is in near mint condition with little to no marks. WA1410, WA1411, WA1412, WA1413, WA1414, WA1415, WA1416, WA1417, WA1418, WA1419, 370.508, 371.508, 372.508, 373.508, 374.508, 375.508, 376.508, 377.508, 378.508, PLUS MANY MORE.