Vacheron Constantin Patrimony self-winding

Vacheron Constantin's Patrimony self-winding, reference 85180/000G-9230, is a men's dress watch with a case measuring 40 mm across and 8.55 mm thick. The case is 18K white gold, and the dial sits under a sapphire crystal. Inside runs the self-winding calibre 2450 Q6/3, carrying the Hallmark of Geneva and offering 40 hours of power reserve. Central seconds and a date aperture at 6 o'clock keep the display simple, and the sapphire caseback shows the movement finishing. The white dial pairs with an alligator leather strap on a white gold pin buckle. Water resistance is a modest 30 metres, in keeping with the watch's dress-watch character.