The Audemars Piguet Quantieme Perpetual is a historically important and beautifully crafted perpetual calendar wristwatch. Released as the world's thinnest self-winding perpetual calendar wristwatch in 1987, it features an ultra-thin caliber 2120/2800 automatic movement. The watch boasts exceptional condition, with a pristine white lacquer dial and crisp apertures for day, date, month, and moon phase.

• Condition: Exceptional, collector's grade condition
• Case size: 36mm diameter
• Movement: Caliber 2120/2800 automatic perpetual calendar movement
• Dial finish: White lacquer dial with horizontally brushed mid-case band and vertically brushed side profile of the lugs

The Audemars Piguet Quantieme Perpetual Ref 25548BA is a historically important, ultra-thin perpetual calendar wristwatch with a beautiful white lacquer dial and exceptional finish.

• Condition: Exceptional, collector's grade
• Case size: 36 × 37.5 × 7.5 mm
• Movement: Caliber 2120/2800 automatic perpetual calendar movement
• Accessories: Fabric wrapped outer box,Leather tri-fold inner box,18-carat gold push pin,Brand new AP signed alligator strap with 18-carat gold buckle,German card indicating a January 1987 sale,Moon phase calendars for 1987 through 1995,Original leather documents holder and manual