Audemars Piguet 26240ST Royal Oak Chronograph "50th Anniversary" SS Black Dial

Introduced in 2022 to celebrate the 50th anniversary of the Royal Oak, the reference 26240ST.OO.1320ST.02 stands as the first Royal Oak chronograph to feature Audemars Piguet’s fully integrated in‑house automatic chronograph caliber 4401, including a flyback function and the commemorative “50‑years” oscillating weight visible through the sapphire caseback. Housed in a 41 mm stainless steel case with glare‑proofed sapphire crystal front and back, this edition brings a modern design refresh while faithfully honouring Gerald Genta’s original octagonal Royal Oak silhouette. The black 'Grande Tapisserie' dial is impeccably balanced with refined registers and a discreet date aperture at the periphery, offering both legibility and aesthetic symmetry. With 40 jewels, a robust 70‑hour power reserve, and a water resistance of 50 m, the caliber 4401 demonstrates both technical advancement and practical day‑to‑day reliability. Its integrated stainless steel bracelet continues the seamless and luxurious DNA of the Royal Oak lineage, secured by an AP folding clasp. As a limited‑edition anniversary model, its significance among collectors is amplified—this reference marks a milestone in the evolution of AP’s chronographs and encapsulates decades of sporty sophistication. Like New with Audemars Piguet box and Audemars Piguet digital warranty card. Includes Audemars Piguet 50th anniversary certificate dated 2022.