The Audemars Piguet Royal Oak Perpetual Calendar (Ref. 26574BC.OO.1220BC.01) is a luxurious timepiece that seamlessly blends classic design with modern sophistication. Housed in a 41 mm 18K white gold case, it features a striking burgundy "Grande Tapisserie" dial, complemented by white gold applied hour markers and Royal Oak hands with luminescent coating. The watch offers a comprehensive perpetual calendar, displaying the day, date, month, leap year, and moon phase, all powered by the self-winding Calibre 5134 movement with a 40-hour power reserve. The 18K white gold bracelet ensures both comfort and elegance, while two additional rubber straps in black and burgundy provide versatility. This timepiece epitomizes Audemars Piguet's commitment to craftsmanship and timeless design.