Audemars Piguet 25594ST Royal Oak Day-Date Moonphase SS White Dial

The Audemars Piguet Royal Oak Day-Date Moonphase reference 25594ST.OO.0789ST.05 pairs the collection's instantly recognizable octagonal steel architecture with a clean white dial that lets the day, date, and lunar display read with premium clarity. This configuration is built around a robust automatic movement architecture associated with the AP 2224 and 2825 family, delivering the correct blend of power, calendar functionality, and long-term serviceability that collectors expect from Audemars Piguet. At 36mm, the watch keeps the Royal Oak proportionally elegant while the integrated bracelet design contributes to its distinctive wrist presence. The case and bracelet in stainless steel provide the durability and everyday practicality that made steel Royal Oaks historically so desirable. Depth rating is modest by modern sport standards, but it aligns with the watch's heritage as a luxury calendar piece intended for daily wear rather than water recreation. The dial layout highlights a day and date for full weekday context, while the moonphase at 6 oclock adds the extra horological romance that separates this reference from simpler Royal Oak day-date variants. Collectors value the 25594ST series for its relative rarity and for offering the full trio of day, date, and moonphase in the Royal Oak mid-size format. For buyers who want a classic steel Audemars Piguet calendar with a statement dial and an iconic integrated design language, this reference is a compelling choice. Like New with Audemars Piguet travel pouch.