Vacheron Constantin Patrimony moon phase retrograde date

The Patrimony moon phase retrograde date, reference 4010U/000G-H070, is a 42.5mm round white gold case with a champagne dial and sapphire crystal. It houses the automatic Vacheron Constantin calibre 2460 R31L, offering a 40-hour power reserve and featuring moon phase and retrograde date functions. The movement carries the Poinçon de Genève, a hallmark established by the Republic and Canton of Geneva in 1886 to certify watchmaking quality and craftsmanship. Water resistance is rated to 30 meters.