Vacheron Constantin Patrimony self-winding

Vacheron Constantin's Patrimony self-winding, reference 85180/000R-B515, measures 40 mm in rose gold. The case is 8.55 mm thick and holds a sunburst blue dial with a date aperture and central seconds. A sapphire crystal covers the dial, and the transparent sapphire caseback reveals the self-winding calibre 2450 Q6/3 beneath, finished to the standards of the Hallmark of Geneva. The movement runs with 40 hours of power reserve and is also a certified chronometer. The watch is paired with a dark blue alligator leather strap closed by an 18-carat pink gold pin buckle. Water resistance sits at a modest 30 metres, enough for everyday wear away from water.