Vacheron Constantin Patrimony moon phase retrograde date

The Patrimony moon phase retrograde date, reference 4010U/000R-B329, is a 42.5mm round case in rose gold with a white dial and sapphire crystal. It is fitted with the automatic Vacheron Constantin calibre 2460 R31L, carrying the Poinçon de Genève hallmark that certifies its Geneva origin and craftsmanship since 1886. The movement offers a 40-hour power reserve and drives moon phase and retrograde date functions. Water resistance is rated to 30 metres.