About Patek Philippe: Patek Philippe SA is a Swiss luxury watch and clock manufacturer, located in the Canton of Geneva. Established in 1839, it is named after two of its founders, Antoni Patek and Adrien Philippe. It is one of the oldest watch manufacturers in the world with an uninterrupted watchmaking history since its founding.
About the Annual Calendar : It represents one of watchmaking's most celebrated complications, pioneering a revolutionary approach to calendar displays since its exclusive patent in 1996. This ingenious mechanism automatically adjusts for 30 and 31-day months, requiring only one manual correction annually at February's end—showcasing the perfect marriage of practical functionality and horological artistry. This prestigious timepiece stands as both a technical masterpiece and coveted collector's investment in Swiss haute horlogerie excellence.