Vacheron Constantin Traditionnelle Calibre Opaline Dial Mens Watch 80172/000P-9505. Platinum case with a black alligator leather strap. Opaline dial with silver-tone hands and index hour markers. Minute markers around the outer rim. Vacheron Constantin Calibre 2755 QP hand wind movement with about 58 hours of power reserve. Scratch resistant sapphire crystal. Skeleton transparent exhibition see through case back. Case size: 44 mm. Case thickness: 13.54 mm. Round case shape. Deployment clasp. Water resistant at 30 meters / 100 feet. Functions: tourbillon, perpetual calendar, leap year, month, date, day, hour, minute, small second, minute repeater, power reserve indicator. Item Variations: 80172000P-9505 , 80172/000P-9505 , X80P2728.