The Audemars Piguet Royal Oak Perpetual Calendar Stainless Steel Blue Dial is a true masterpiece of Swiss watchmaking, carrying on the legacy of the iconic Royal Oak collection. First introduced in 2015, this model continues to captivate enthusiasts with its unparalleled blend of functionality and timeless style. Crafted in a 41mm stainless steel case, the Royal Oak Perpetual Calendar boasts a striking blue "Grande Tapisserie" dial, complete with luminescent index markers for exceptional legibility. Powered by the self-winding Calibre AP 5134 movement, this timepiece features a remarkable 38-jewel mechanism and a 40-hour power reserve, ensuring reliable performance and precision. The key highlight of this model is its perpetual calendar complication, which automatically adjusts the date, day, month, and moon phase indicators to account for the varying lengths of months and leap years. This exceptional functionality makes the Royal Oak Perpetual Calendar an indispensable companion for the modern professional or seasoned collector, allowing them to focus on their daily pursuits without the need to manually adjust the time and date. Whether you're attending a formal event, traveling the globe, or simply enjoying the finer things in life, the Audemars Piguet Royal Oak Perpetual Calendar Stainless Steel Blue Dial is a true statement piece that will elevate any wrist. Its timeless design, innovative complications, and impeccable craftsmanship make it a true icon of Swiss watchmaking.