Perpetual calendar function Since the beginning of Audemars Piguet, it has become one of the core of the brand’s complex function watchmaking. The advent of this feature also reminds people that all timing techniques are derived from astronomy and natural cycles. In 1955, Audemars Piguet launched the world’s first perpetual calendar watch with a leap year display. At that time, only nine watches were made, all made of 18K yellow gold. Since then, Audemars Piguet has launched a variety of perpetual calendar watches, including the Royal Oak series perpetual calendar watch released in 2016, which combines gold material, the iconic design of watchmaker Gérald Genta and the classic perpetual calendar Features.
Audemars Piguet Royal Oak Perpetual Calendar, black ceramic case, ceramic bracelet with perpetual calendar function, using 51.34 million calendar movement, power reserve of at least 40 hours.
This year, Audemars Piguet introduced the black ceramic perpetual calendar watch with hand decoration, which further enriched the Royal Oak series of perpetual calendar models. On the ‘Grande Tapisserie’ large checkered dial, the date, week, month, astronomical moon phase, week display on the outer circle of the dial, and the leap year display with the most essence of the perpetual calendar function are clearly presented and complement each other. In the classic 41mm case, the Calibre 5134 self-winding self-produced movement is moved. The anti-glare treatment of the sapphire crystal back allows the wearer to appreciate the mechanical beauty of this self-produced movement.
Black ceramic has excellent scratch resistance and wear resistance, and can withstand high temperature and thermal shock. It has strong anti-aging ability, but it is extremely difficult to handle by hand. In order to create materials that are uniform, dense, extremely hard, and can be decorated by hand, watchmakers need a high degree of patience and skill. Audemars Piguet’s designers completed the design and development of this new watch in more than 600 hours. It takes 6 hours to machine, decorate, assemble, and adjust a stainless steel Royal Oak bracelet. It takes up to 30 hours to make the same black ceramic bracelet.
The dark gray ‘Grande Tapisserie’ large checkered dial with black sub-dial design, and the astronomical accurate moon phases are displayed in real moon images, in contrast to the black parts.