Vacheron Constantin Traditionnelle moon phase

Vacheron Constantin's Traditionnelle moon phase, reference 83570/000R-H060, measures 36 mm across in rose gold. The case is 9.1 mm thick and pairs with a pink-tinted mother-of-pearl dial finished in the 270th anniversary Maltese cross pattern. Inside is the manual-winding calibre 1410 AS/270, carrying the Hallmark of Geneva and offering 38 hours of power reserve, shown on a dedicated display. A sapphire crystal covers the dial, and a matching crystal caseback reveals the movement. The moon phase, requiring correction only once every 122 years, sits with small seconds on the dial, and the watch is set with diamonds. The rose gold pin buckle closes an alligator leather strap. Rated to 30 metres, the case takes its finish from the same anniversary theme as the dial.