Exclusive Timepieces 22 –⁠ 23 April 2023 | Monaco

Auction Details

The Monaco Legend Group team has put together an astonishing selection of rarities in the horological field. From the Unique Piece Rolex Yachtmaster, former property of the late President of Rolex Patrick Heiniger, to an outstanding example of the Patek Philippe 2523-1. Not to mention the great selection of rarities destined for Middle Eastern market, such as a Rolex Submariner and Daytona from the Sultanate of Oman and a steel Daytona with UAE emblem on the dial.
Many thanks to Auro Montanari, alias John Goldberger, Roberto Randazzo and George Pakkos for their significant help in supervising the catalogue and to Eric Tortella for his assistance in searching for some of our rarest Patek Philippe watches in his database and releasing his passport of authenticity for them.


Session I: Saturday 22 April, 2:30 PM – lots 1 to 100
Session II: Sunday 23 April, 10:30 AM – lots 101 to 164
Session III: Sunday 23 April, 2:30 PM – lots 165 to 261

88 Audemars Piguet Extremely Rare and Collectable, Number 2 of 5, Quantieme Perpetuel Calendar, Automatic Wristwatch in White Gold, Integrated White Gold Bracelet, Pavè Diamond Dial and Bezel, Extract from the Archives, Reference 25673BC

Estimate: € 40,000 –⁠ 80,000

Sold € 85,800

Model: Quantieme Perpetuel
Reference: 25673BC
Case Material: White Gold
Bracelet Material: White Gold
Year: 1989
Movement: Automatic
Caliber: 2120
Case N°: C15914, N° 002
Movement N°: 324414
Dimensions: 36 mm
Signed: Dial, Case and Movement
Accessories: Extract from the Archives

Audemars Piguet has a long history of making some of the most beautiful and impressive perpetual calendars. In 1978 they revealed its first automatic perpetual calendar that was, at that time, the thinnest specimen ever produced around the globe. From that moment on, the brand showed off incredible creativity and the variants explored have been numerous, applied to the most iconic models today such as the Royal Oak or even adorned with a variety of dial configurations, ranging from simple white versions of precious diamonds-set. During the period from the late 1970s to the late 1980s, references like this 25673BC were made in very limited production. Almost 200 different references were only made in 100 pieces, while 58 references had fewer than 40 pieces made across all metals. White-gold examples were the rarest of these productions, with fewer than 200 white-gold perpetual calendar watches made during this period—nearly three quarters of the production was in yellow gold. The example of 25673BC here offered is surely one of the most glizzering and precious for Audemars. The watch, encased in white gold, is very heavy and adorned with the original factory pave-set diamond dial for a total diamond weight of approximately 1.80 cts. The circular case is nicely preserved and is embellished with Audemars Piguet’s diamond-set bezel composed of 56 brilliant-cut stones. Powered by Audemars Piguet’s famous caliber 2120, the present timepiece with its 36 mm case size is the perfect size for both man and women. According to our research, only 8 examples of this reference were produced, with 3 in yellow gold and 5 in white gold. This example, in impeccable condition, is one of only seven white-gold pieces in existence, making it an exceptional addition to any serious Audemar Piguet collection.