Patek Philippe 5320G (New with box and papers) — USD 76,850 on eBay

The Patek Philippe reference 5320G is a perpetual calendar wristwatch, notable for its vintage-inspired design cues and contemporary execution. It integrates a day, date, month, leap year, day/night indicator, and moon phase display, presented in a legible and balanced dial layout. This reference represents a modern interpretation of Patek Philippe's perpetual calendar tradition, offering a distinct aesthetic within the brand's Grand Complications collection. The 5320G features a white gold case with stepped lugs, measuring 40mm in diameter. It houses the self-winding caliber 324 S Q, which provides a power reserve of approximately 35-45 hours. The watch is fitted with a sapphire crystal on the front, offering a clear view of the dial, and a sapphire crystal exhibition case back reveals the meticulously finished movement. This reference appeals to collectors seeking a perpetual calendar with a strong historical design language, yet built with modern manufacturing standards. Its distinctive dial and case design set it apart from other perpetual calendar offerings, positioning it as a significant piece for those who appreciate both Patek Philippe's heritage and its ongoing innovation in complicated watchmaking.