Audemars Piguet 15500ST (Pre-owned - Excellent) — USD 52,950 on eBay

The Audemars Piguet Royal Oak reference 15500ST was introduced in 2019, succeeding the 15400ST as the primary time-and-date model in the 41mm Royal Oak collection. This reference marked a significant update, featuring a new in-house movement and subtle aesthetic refinements that distinguish it from its predecessor. It maintains the core design principles of the Royal Oak, offering a contemporary interpretation of the brand's signature sport watch. Its introduction was part of a broader refresh of Audemars Piguet's core collection. This reference is housed in a 41mm stainless steel case with a thickness of 10.4mm, characteristic of the Royal Oak's integrated design. It is powered by the in-house Calibre 4302, an automatic movement operating at 28,800 vibrations per hour and providing a power reserve of 70 hours. The watch features a sapphire crystal on both the front and the display caseback, allowing for a view of the movement. Water resistance is rated at 50 meters, consistent with its intended use as a luxury sport watch. The 15500ST appeals to collectors seeking a modern Royal Oak with updated technical specifications. It was available with several dial colors, including blue, grey, black, and silver, each featuring the "Grande Tapisserie" pattern. The integrated stainless steel bracelet remains a defining characteristic, providing a cohesive look and feel. This reference represents an evolution in the Royal Oak lineage, offering enhanced performance and a refined presence on the wrist.