T he Royal Oak was the first luxury sport watch. Years before other manufacturers, it opened the path to a new way of thinking in the traditional world of watchmaking. This visionary concept is the masterpiece of the designer Gerald Genta and contributed to saving the Swiss industry. Not all the Royal Oak are created equal. Perpetual calendar Royal Oaks are extremely exclusive and sought after by discerning collectors. With a unique size and a different movement, the elusive Reference 25800 is the most special Royal Oak featuring this complication. Sotheby’s is extremely pleased to present as a special single lot sale the only publicly known 25800 in white gold with an incredible bright yellow dial.