Audemars Piguet Royal Oak Offshore Chronograph, reference 25721ST.00.1000ST.09, stainless steel wristwatch with blue dial, chronograph and bracelet, Extract from the Archives, circa 2007. A bold and highly recognizable sports chronograph, the present Royal Oak Offshore reference 25721ST — often nicknamed “The Beast” by collectors — is one of the most emblematic creations of Audemars Piguet. Introduced as a more powerful and contemporary evolution of the Royal Oak, the Offshore line quickly established itself as a cornerstone of modern luxury sports watchmaking. This example was produced in 2007 and is accompanied by an Extract from the Audemars Piguet Archives confirming its year of production. The watch is housed in the signature 42 mm stainless steel case, featuring the iconic octagonal bezel secured by eight hexagonal screws, crown guards and chronograph pushers, giving the model its unmistakable presence on the wrist. The watch is fitted with a blue “Méga Tapisserie” dial, displaying luminous hands and hour markers, three chronograph counters and a date aperture, offering both depth and excellent legibility. It is powered by a reliable automatic chronograph movement, characteristic of early Royal Oak Offshore models. Presented on its original stainless steel Royal Oak Offshore bracelet with 16 links, the watch retains the strong and sporty character that defines the collection. The watch underwent a complete service in October 2025 and is offered in excellent mechanical condition. For additional peace of mind, it is sold with a two-year warranty. A landmark model within the Royal Oak Offshore family, this reference 25721 represents an excellent opportunity to acquire a well-maintained and documented example of one of Audemars Piguet’s most celebrated modern sports chronographs.