The Audemars Piguet Royal Oak Perpetual Calendar Ref. 26579CE.OO.1225CE.01 is an exceptional timepiece that showcases both technical innovation and aesthetic excellence. The case and bracelet are made entirely of black ceramic, making the watch incredibly lightweight, durable, and scratch-resistant. The iconic octagonal bezel, secured with eight white gold screws, gives the watch its signature Royal Oak look.

The blue “Grande Tapisserie” dial contrasts beautifully with the black ceramic case, adding a touch of sophistication. The white gold applied hour markers and Royal Oak hands are coated with luminescent material, ensuring excellent visibility in low light.

One of the most remarkable features of this watch is its perpetual calendar complication, which automatically adjusts for different month lengths and leap years, requiring no manual correction until the year 2100. The dial displays:

• Day of the week (at 9 o’clock)
• Date (at 3 o’clock)
• Month and leap year indicator (at 12 o’clock)
• Astronomical moon phase (at 6 o’clock)

Additionally, the week number is displayed on the outer edge of the dial, a unique feature rarely seen in luxury watches.

The automatic self-winding movement ensures precise and reliable timekeeping without requiring manual winding. The transparent sapphire crystal case back allows a clear view of the intricate mechanics, showcasing the craftsmanship behind this masterpiece.

Despite its complex functions, the watch remains highly wearable, thanks to the ergonomic ceramic bracelet, which provides a comfortable and secure fit. It is also water-resistant, offering protection from splashes and light exposure to water.

The Audemars Piguet Royal Oak Perpetual Calendar Ref. 26579CE.OO.1225CE.01 is an excellent choice for collectors and watch enthusiasts who appreciate fine watchmaking and timeless design.