The Audemars Piguet Royal Oak Selfwinding Chronograph 41 mm (Ref. 26240ST.OO.1320ST.06) is a sophisticated timepiece that embodies the latest evolution of the Royal Oak design. Featuring a 41 mm stainless steel case and bracelet, it showcases a black "Grande Tapisserie" dial with black counters, white gold applied hour-markers, and Royal Oak hands with luminescent coating. Powered by the Calibre 4401 selfwinding movement, it offers a flyback chronograph, hours, minutes, small seconds, and date functions, with a power reserve of approximately 70 hours. The watch is water-resistant up to 50 meters and comes with an AP folding clasp.