Perhaps nothing is ever as elegant as a classic perpetual calendar. Pictured here are 3 yellow gold examples from PatekPhilippe and VacheronConstantin, all with finely proportioned dial layout that provides great readability. In great overall conditions, these timepieces serve perfectly from casual to formal settings. 1️⃣Lot 138 Patek Philippe Ref. 5136 with Moon Phases, 24 Hours And Leap Year Indication, Circa 2008 (Est: HK$240k – 350k/ US$31k – 45k) 2️⃣Lot 141 Patek Philippe Ref. 3945 with Moon Phases, 24 Hours And Leap Year Indication, Circa 1993 (Est: HK$200k – 320k/ US$26k – 41k) 3️⃣Lot 146 Vacheron Constantin Ref. 43031/1 with Moon Phases And Leap Year Indication, Circa 1990 (Est. HK$120k – 240k/ US$15k – 31k) . Visit our link in bio to view and shop on the current sale, open for bidding till 6 May. #Sothebyswatches #SothebysOnline #WatchesWeekly #patekphilippe #VacheronConstantin #PerpetualCalendar #wristwatch #watches #patekaholic #patekcollector #WatchesofInstagram #WatchCo...