SIGNED AUDEMARS PIGUET, ROYAL OAK QUANTIEME PERPETUEL MODEL, REF. 25829ST, CASE NO. E-88349, NO. 373, CIRCA 2003

Regarded as one of Audemars Piguet’s masterpieces, the now discontinued ‘openworked’ or skeletonized perpetual calendar Royal Oak reference 25829 is especially desired among watch collectors. Originally available in stainless steel, yellow gold, pink gold, platinum and tantalum two-tone, the steel versions, such as the present watch are particularly sought after and hard to find.

Launched in 1982, the Royal Oak Perpetual Calendar combines two of the great icons of Audemars Piguet’s heritage, the Royal Oak model and the perpetual calendar complication. The skeletonized version was introduced in the 1990s to allow the incredible finish of the movement to be visible through both the sapphire crystal case back and the dial and bringing a stunning new aesthetic to the Royal Oak model. The movement is the automatic Calibre 2120/2800, featuring the date, day, month, leap years, and a moon phase with 29 1⁄2 day lunar calendar. The transparent crystal dial with white subsidiaries completes this visually stunning and ultra-rare steel Royal Oak.