The Audemars Piguet Royal Oak Selfwinding reference 15500ST.OO.1220ST.02 is a contemporary 41mm luxury sports watch crafted from stainless steel. Introduced in 2019 as a successor to the 15400, it features a case thickness of 10.4mm and maintains the collection’s iconic octagonal bezel secured by eight functional white gold screws. The timepiece is defined by its slate grey dial adorned with the Grande Tapisserie hobnail pattern, which includes white gold applied hour-markers and Royal Oak hands with luminescent coating for enhanced legibility. It is paired with an integrated stainless steel bracelet featuring a folding AP clasp.
Mechanically, the watch is powered by the manufacture caliber 4302, a self-winding movement that represents a significant upgrade over previous generations. This movement operates at a high-beat frequency of 4Hz and provides an extended power reserve of approximately 70 hours. The complications are focused on essential timekeeping, featuring central hours, minutes, and seconds, along with a date window positioned at 3 o’clock. A glareproofed sapphire crystal and transparent caseback allow for a clear view of the movement’s refined finishing and skeletonized gold rotor, while the screw-locked crown ensures water resistance up to 50 meters.
General reviews of the reference 15500ST highlight its evolved design and technical improvements, noting that the removal of the automatic text from the dial results in a cleaner, more modern aesthetic. Collectors frequently praise the caliber 4302 for better filling the case diameter than its predecessor and for its robust construction. While some purists find the 41mm size and thicker profile to have a bolder wrist presence compared to the ultra-thin Jumbo models, the watch is widely regarded as a premier daily-wear sports watch due to its exceptional finishing and improved mechanical efficiency. Minor criticisms occasionally focus on the highly polished surfaces being prone to hairline scratches.