Measuring 41mm in diameter, the case is crafted from 18-carat pink gold and offers water resistance to 50 metres. The dial — described as "Bleu nuit nuage 50" — carries the Royal Oak's hallmark "Grande Tapisserie" texture, complemented by pink gold applied hour-markers and Royal Oak hands finished with a luminescent coating. A blue alligator strap with an 18-carat pink gold AP folding clasp completes the presentation.
Inside, a selfwinding calibre with a 32mm diameter and 4.9mm thickness runs at 4 Hz (28,800 vph), composed of 257 parts set with 32 jewels. The movement delivers hours, minutes, centre seconds, and a date function, and is rated for a power reserve of 70 hours.
Reference 15510OR.OO.D315CR.02 represents a considered combination of the Royal Oak's architectural case form and the warm tones of pink gold, brought together with a deep blue dial and matching strap for a cohesive overall look.
