Vacheron Constantin Traditionnelle moon phase

Vacheron Constantin's Traditionnelle moon phase, reference 83570/000G-9916, is a 36 mm white gold watch set with diamonds. The case measures 9.1 mm thick, and the mother-of-pearl dial sits under a sapphire crystal. Inside is the manual-winding calibre 1410 AS, carrying the Hallmark of Geneva and offering 38 hours of power reserve. The dial shows a precision moon phase at its centre, along with small seconds and a power reserve display. A transparent sapphire caseback exposes the movement's finishing. The watch is fitted to a grey alligator leather strap with a white gold pin buckle. Water resistance is a modest 30 metres, in keeping with its dress proportions.