Audemars Piguet Royal Oak Perpetual Calendar 26579CS.OO.1225CS.01 Blue Ceramic

Ultra-rare, technically extraordinary, and visually breathtaking — the Audemars Piguet Royal Oak Perpetual Calendar 26579CS.OO.1225CS.01 is one of the most advanced and collectible modern Royal Oaks ever produced. Crafted entirely in blue ceramic , this 41mm timepiece represents the pinnacle of innovation, combining high-tech materials with elite complications. The layout includes day, date, month, leap year, and moonphase , all seamlessly integrated into the skeletonized display without compromising legibility. The striking blue ceramic case and integrated bracelet offer exceptional scratch resistance and durability while delivering a bold, contemporary aesthetic that sets this piece apart from traditional Royal Oak models. At its core is the in-house Audemars Piguet Caliber 5135 automatic movement , a highly complex perpetual calendar mechanism finished to the highest standards and visible through both the dial and sapphire caseback. Key Features: Model: 26579CS.OO.1225CS.01 Case Size: 41mm Material: Blue ceramic case & bracelet Dial: Blue perpetual calendar Bracelet: Integrated blue ceramic bracelet Movement: Audemars Piguet Caliber 5135 (Automatic Perpetual Calendar) Functions: Day, date, month, leap year, moonphase Crystal: Sapphire crystal (front and caseback) Water Resistance: 20 meters / 66 feet