Audemars Piguet 15400ST Royal Oak SS Ruthenium Dial

Launched circa 2017, the Audemars Piguet Royal Oak ref. 15400ST.OO.1220ST.04 presents a refined evolution of the iconic 15400 line, pairing a 41 mm stainless steel case with the rare grey ruthenium "Grande Tapisserie" dial—an uncommon finish that elevates its appeal among discerning collectors. Powered by the in‑house Caliber 3120 self‑winding movement, this model delivers a 60‑hour power reserve and showcases AP’s hallmark 22‑carat gold rotor. The watch’s proportions—41 mm diameter and 9.8 mm thickness—offer a sporty yet elegant wrist presence, while the exhibition caseback underscores the movement’s craftsmanship. Though not a limited edition, the ruthenium dial variant was produced in very limited numbers and is often regarded as boutique‑exclusive, enhancing its rarity and desirability. This reference embodies the Royal Oak’s heritage, blending Gerald Genta’s original octagonal design with modern technical refinement. Collectors prize it for its subtle dial nuance, robust yet refined movement, and its position as a transitional piece bridging earlier and later iterations of the 15400 series. Like New with Audemars Piguet box and digital warranty card.