An icon of modern horology, the Audemars Piguet Royal Oak 15400ST embodies architectural precision and timeless style. Crafted in stainless steel with the signature octagonal bezel, its 41 mm case frames a black “Grande Tapisserie” dial—an emblematic detail that speaks to the maison’s mastery of craft. The automatic movement ensures enduring performance, while the integrated bracelet completes its seamless design. At once bold and refined, the Royal Oak remains one of the most coveted symbols of contemporary watchmaking excellence.