Watch of the Day · 2026-08-16 · from the archive
Audemars Piguet Royal Oak Perpetual Calendar
Ref. 25820PT.OO.0944PT.04 · Platinum — one documented result from the 1,156-lot MostExpensiveWatches auction record, featured today.
A platinum perpetual calendar featuring a highly sought-after salmon dial and the automatic Calibre 2120/4.
Achieving $398,000 at Sotheby's Geneva in 2022, this Audemars Piguet Royal Oak Perpetual Calendar (ref. 25820PT.OO.0944PT.04) stands among 65 documented sales for the brand in the corpus. Collectors track this model for its platinum execution, automatic Calibre 2120/4, and sought-after salmon dial. While below the brand's $7,736,000 auction record established by the Grosse Pièce in 2025, the result establishes documented market value for this specific platinum perpetual calendar reference.
Full lot record & sources All Audemars Piguet results The Grail Index
Previous watches of the day
| Date | Watch | Result |
|---|---|---|
| 2026-08-20 | Audemars Piguet Jumping Hour (circa 1928) | $1,016,000 · Christie's New York · 2026 |
| 2026-08-19 | George Daniels Anniversary | $452,700 · Phillips Geneva · 2019 |
| 2026-08-18 | Richard Mille Felipe Massa 'White Demon' | $378,000 · Christie's Dubai · 2023 |
| 2026-08-17 | Rolex Daytona 'The Legend' | $3,726,000 · Phillips Geneva · 2017 |
| 2026-08-15 | Greubel Forsey GMT Balancier Convexe (1 of 1) | $302,400 · Christie's Dubai · 2025 |
| 2026-08-14 | Rolex GMT-Master "Marlon Brando" | $1,952,000 · Phillips New York · 2019 |
| 2026-08-13 | George Daniels Anniversary | $1,260,614 · Phillips Geneva · 2023 |
| 2026-08-12 | Greubel Forsey Invention Piece 2 | $423,395 · Christie's Hong Kong · 2024 |
| 2026-08-11 | Cartier Tank Louis Cartier | $379,500 · Christie's New York · 2017 |
| 2026-08-10 | Vacheron Constantin Chronograph | $150,000 · Phillips Geneva · 2016 |
| 2026-08-09 | Greubel Forsey Double Tourbillon 30° | $225,806 · Phillips Hong Kong · 2016 |
| 2026-08-08 | Greubel Forsey Balancier Convexe S² Carbon | $176,400 · Christie's Dubai · 2025 |
| 2026-08-07 | Urwerk Maltese Falcon | $133,197 · Phillips Geneva · 2024 |
| 2026-08-06 | Audemars Piguet Royal Oak Grand Complication | $1,134,000 · Sotheby's New York · 2022 |
About this series
Every day MostExpensiveWatches features one documented auction result from its comp corpus — hammer prices with primary sources, the record layer behind the Grail Index and the daily Price Index. Machine-readable: /data/watch-of-the-day.json. Cite as “MostExpensiveWatches Watch of the Day”.
Compiled: 2026-08-16T00:15:24.673583+00:00