Quantième Perpetual | A yellow gold automatic perpetual calendar wristwatch with moon phases, Circa 1985
Audemars Piguet
Dial: white Caliber: cal. 2120/1 automatic, 36 jewels Movement number: 212'094 Case: 18k yellow gold, snap on case back Case number: no. 267, B 50049 Closure: 18k yellow gold Audemars Piguet buckle Size: 36 mm diameter Signed: case, dial, and movement Box: no Papers: yes Accessories: Audemars Piguet traveling case, and Certificate of Origin and Guarantee booklet (open) Audemars Piguet has long been revered in the world of horology, not only for iconic timepieces like the Royal Oak but also for its mastery in crafting exceptional perpetual calendars. Released in 1982, the brand introduced the Quantième Perpétuel Automatique, debuting the world’s thinnest self-winding perpetual calendar. At the time of its release, reference 25657 was among the few perpetual calendar wristwatches available, making it a remarkable feat of mechanical ingenuity. Reference 25657 saw the production of 1,821 units, crafted from materials such as 18k yellow gold, platinum, and more over the years. Staying true to classic design principles, its case boasts a traditional stepped bezel, short downturned lugs, and refined, elegant proportions. The dial maintains a harmonious symmetry, featuring a perpetual calendar with day, date, and month subdials, complemented by a moon phase display at 6 o’clock—an exquisite touch that enhances its timeless appeal. Despite the dominance of quartz technology during the era, Audemars Piguet boldly pursued innovation with the development of the cal. 2120/2800 movement. The brand embraced creativity in design, materials, and craftsmanship, offering collectors an array of choices that reflected the vibrant trends of the time. In an era when many watchmakers were shifting focus to quartz, Audemars Piguet’s dedication to high-complication mechanical watches was both audacious and visionary.
