131 Audemars Piguet A very rare and incredibly attractive, Perpetual Calendar, moonphases wristwatch in platinum, with openworked dial, certificate of origin, VHS instruction manual, winding presentation box, reference 25636PT.
Estimate: € 150.000 – 300.000
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| model | Royal Oak Perpetual Calendar |
|---|---|
| year | 1995 |
| reference | 25636PT |
| case material | Platinum |
| case number | N°71, D56673 |
| bracelet material | Platinum Audemars Piguet bracelet, approximate length 195mm |
| movement type | Automatic, cal. 21 C, 38 jewels |
| movement number | 391'975 |
| dimension | 39mm Diameter |
| signed | Case, dial and movement |
| accessories | Accompanied by, Certificate of origin, hang tags, booklet, calendars, VHS instruction manual, winding fitted presentation box and outer packaging. |
Unveiled in 1986, just two years after Audemars Piguet introduced the first Royal Oak Perpetual Calendar, the reference 25636 was a technical and aesthetic revolution: the world’s first skeletonized perpetual calendar wristwatch with a sapphire caseback. Produced in just 312 pieces across all metals, only 34 examples were crafted in platinum. Bearing a D-series case number, the present 25636PT is a superb specimen of this early openworked generation, notable for its dial layout sans leap-year indication—a characteristic of the earliest perpetual calendars by Audemars Piguet, echoing the traditions of mid-century high horology. The white-printed sapphire dial provides an enthralling window into the intricate choreography of wheels and cams that define the perpetual calendar complication. Housed in platinum, a notoriously delicate and soft material, the case remains remarkably well-preserved, its sharp lines intact. Adding tremendous appeal is its extraordinary completeness: certificate of origin, presentation box with integrated winder, calendar inserts, hang tags, VHS manual, and more. A cornerstone in the history of the Royal Oak, this reference embodies the perfect confluence of avant-garde design, mechanical mastery, and rarity—rightly earning its place among the most coveted complicated Royal Oaks of the modern era.
Condition Report
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