The Audemars Piguet Royal Oak Selfwinding Chronograph Ref. 26315ST.OO.1256ST.02 is a distinguished and perfectly proportioned member of the iconic Royal Oak lineage, representing Audemars Piguet’s commitment to compact contemporary dimensions without sacrificing the collection’s signature visual impact. This 38mm stainless steel timepiece features a meticulously redesigned silver-toned “Grande Tapisserie” dial with a rhodium-toned outer zone and matching counters, a sophisticated monochromatic palette that enhances legibility while preserving the intricate guilloché pattern that has become the hallmark of the collection . The applied white gold hour-markers and Royal Oak hands, coated with luminescent material, ensure optimal readability against the textured silver dial, while the date window discreetly positioned between 4 and 5 o’clock adds practical daily functionality . At its heart beats the legendary in-house Calibre 2385, a self-winding column-wheel chronograph movement comprising 304 meticulously finished parts and 37 jewels, delivering a reliable 40-hour power reserve and showcasing exquisite haute horlogerie finishing visible through the sapphire crystal caseback . The stainless steel bracelet, with its seamlessly integrated design and alternating satin-brushed and polished surfaces, flows from the case with the fluid elegance that has defined the Royal Oak since its revolutionary debut in 1972 . Presented with its original box and papers, this 38mm chronograph offers exceptional versatility, appealing to both men and women who appreciate the perfect balance of sporty sophistication, technical precision, and timeless design, making it a highly desirable addition to any discerning collection. Key specifications: 38mm stainless steel case; silver-toned “Grande Tapisserie” dial with rhodium counters; Calibre 2385 automatic chronograph movement; 40-hour power reserve; integrated stainless steel bracelet; 50m water resistance; sapphire crystal front and back .