Housed in a 41mm 18-carat pink gold case with 50 metres of water resistance, this Royal Oak carries one of Audemars Piguet's most distinctive dial treatments — the "Bleu Nuit Nuage 50" — rendered with the hallmark "Grande Tapisserie" relief pattern. Pink gold applied hour-markers and Royal Oak hands finished with a luminescent coating complete the dial, while an AP folding clasp secures the matching 18-carat pink gold bracelet.
Inside beats a selfwinding calibre measuring 32mm in diameter and 4.9mm in thickness, comprising 257 parts and 32 jewels. Oscillating at 4 Hz (28,800 vph), the movement delivers a generous 70-hour power reserve and drives a full display of hours, minutes, centre seconds, and date.
Reference 15510OR.OO.1320OR.03 represents the Royal Oak in one of its most luxurious expressions, pairing the warmth of pink gold with a deep, cloud-inflected blue dial that shifts character in different lighting conditions.
