Vacheron Constantin Patrimony self-winding

The Patrimony self-winding (reference 4115U/000R-B907) is a round 36.5mm case in rose gold with a champagne dial and sapphire crystal. It is powered by the automatic Vacheron Constantin calibre 2450 Q6/3, offering a 40-hour power reserve and a date function. The piece carries the Geneva Seal, a certification introduced by the Republic and Canton of Geneva in 1886 to denote quality craftsmanship in watchmaking. It has a display back and is water resistant to 30 metres.