The Audemars Piguet Royal Oak Jumbo Extra-Thin reference 15202ST.OO.1240ST.01.A is a premier luxury sports watch that pays homage to the original 1972 design by Gérald Genta. It features a 39mm stainless steel case with a remarkably slim profile of approximately 8.1mm, housing the iconic octagonal bezel secured by eight hexagonal white gold screws. The blue dial is decorated with the signature “Petite Tapisserie” pattern and includes white gold applied hour-markers and Royal Oak hands, both treated with a luminescent coating for legibility in low-light conditions. The watch is presented on an integrated stainless steel bracelet with an AP folding clasp, maintaining the seamless aesthetic of the collection.
The timepiece is powered by the ultra-thin, self-winding Calibre 2121 movement, which measures only 3.05mm in thickness. This movement features an annular rotor supported by four ruby rollers to minimize wear and maintain its slim dimensions. It operates at a frequency of 19,800 vibrations per hour and provides a power reserve of approximately 40 hours. In terms of complications, the watch is intentionally minimalist, offering central hours and minutes alongside a date window located at the 3 o’clock position. The case provides a water resistance of up to 50 meters and features a sapphire crystal caseback, allowing for a clear view of the movement’s high-end finishing.
General reviews of the 15202ST frequently praise its historical authenticity and its status as the most faithful modern interpretation of the original “Jumbo.” Enthusiasts often highlight its exceptional wearability and the refined craftsmanship of the Calibre 2121, which is considered a masterpiece of thin horology. While it is celebrated for its elegant proportions and iconic design, some collectors note the lack of a quick-set date function as a minor quirk of its vintage-inspired movement. Overall, it remains one of the most coveted and respected timepieces in the luxury market due to its combination of heritage, technical sophistication, and enduring style.