The Audemars Piguet Royal Oak Jumbo Extra-Thin reference 15202BA.OO.1240BA.02.A is a 39mm luxury timepiece crafted from 18-carat yellow gold, featuring the collection’s iconic octagonal bezel and integrated bracelet. This model is distinguished by its champagne-toned dial adorned with the Petite Tapisserie pattern, yellow gold applied hour markers, and Royal Oak hands with luminescent coating. The case maintains a slender profile of 8.1mm and offers water resistance up to 50 meters, protected by glareproofed sapphire crystal on both the front and the exhibition caseback.
Powered by the self-winding Calibre 2121, the watch operates at a frequency of 19,800 vibrations per hour and contains 36 jewels. This ultra-thin movement is a mere 3.05mm thick yet provides a power reserve of approximately 40 hours. In terms of complications, the timepiece focuses on essential timekeeping, displaying hours and minutes alongside a date window located at the 3 o’clock position. The movement is noted for its extensive hand-finishing, including polished jewel sinks and chamfered rims on the screws.
General reviews of the 15202BA often emphasize its historical significance as a direct descendant of the original 1972 Gérald Genta design. Critics and enthusiasts frequently praise the superb wearer comfort provided by the 39mm case and the fluid integration of the yellow gold bracelet. While the monochromatic gold-on-gold aesthetic is sometimes described as having a nostalgic or retro appeal, the watch is widely regarded as a premier example of high-end horology due to its peerless finishing and the legendary status of its thin mechanical movement. Some minor criticisms note the lack of a quickset date function and a shorter power reserve compared to more modern iterations.