Rendered entirely in 18-carat yellow gold, this 37mm Royal Oak carries the model's iconic architecture alongside a vivid turquoise dial set with yellow gold applied hour-markers and Royal Oak hands finished with a luminescent coating. The combination of warm gold and cool turquoise creates a contrast that is both bold and refined, water-resistant to 50 metres.
Inside, a selfwinding calibre measuring 26.2 mm in diameter and just 3.9 mm thick beats at 4 Hz (28,800 vph), offering a 60-hour power reserve. The movement comprises 188 parts and 29 jewels, delivering hours, minutes, centre seconds, and a date display.
Reference 15550BA.OO.1356BA.01 represents the Royal Oak's ability to balance sporting origins with precious-metal luxury, making it a distinctive choice for those drawn to colour and craftsmanship in equal measure.