Vacheron Constantin Patrimony (2011)

Vacheron Constantin Patrimony perpetual calendar (2011);Case is 41mm in 18kwg.  Automatic Caliber 1120QP, Geneva Seal.  Power reserve is 40 hours.  Priced at CHF83000 (in 2022)

this is an excellent example of a perpetual calendar using the 48 step cam system