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 1,183-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
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| Date | Watch | Result |
|---|---|---|
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| 2026-10-05 | Urwerk UR-CC1 King Cobra | $148,590 · Christie's Hong Kong · 2025 |
| 2026-10-04 | Patek Philippe Perpetual Calendar Automatic (with Leap Year) | $322,000 · Phillips Geneva · 2022 |
| 2026-10-03 | Vacheron Constantin King Fouad I Pocket Watch | $2,755,000 · Antiquorum Geneva · 2005 |
| 2026-10-02 | Voutilainen Vingt-8 | $138,176 · Sotheby's Hong Kong · 2024 |
| 2026-10-01 | A. Lange & Söhne Tourbillon 'Pour le Mérite' (1994) | $285,000 · Phillips Geneva · 2023 |
| 2026-09-30 | Voutilainen Reference 217QRS Retrograde Date | $146,050 · Sotheby's New York · 2023 |
| 2026-09-29 | Audemars Piguet Royal Oak Perpetual Calendar Openworked | $695,000 · Phillips Geneva · 2022 |
| 2026-09-28 | Panerai Radiomir Guido Panerai & Figlio | $391,000 · Phillips Geneva · 2023 |
| 2026-09-27 | Bovet Miss Audrey Sweet Fairy Only Watch | $247,000 · Christie's Geneva · 2021 |
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