Watch of the Day · 2026-09-26 · from the archive
Panerai Radiomir Type C 'Helmut Rösel'
Ref. 3646 · Stainless Steel — one documented result from the 1,183-lot MostExpensiveWatches auction record, featured today.
A historically significant piece formerly owned by German combat swimmer Helmut Rösel, complete with original documentation.
The stainless steel Panerai Radiomir Type C ref. 3646 achieved $112,000 at Phillips Geneva in 2017. This result matters to collectors due to its verified provenance, having been formerly owned by German combat swimmer Helmut Rösel and accompanied by original documentation. Within the corpus of 36 documented Panerai sales—led by the brand record of $391,000 for the Radiomir Guido Panerai & Figlio in 2023—this sale establishes pricing for historically significant, documented military references.
Full lot record & sources All Panerai results The Grail Index
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| Date | Watch | Result |
|---|---|---|
| 2026-10-10 | Rexhep Rexhepi Chronomètre Contemporain I | $920,000 · Phillips Geneva · 2023 |
| 2026-10-09 | Voutilainen Vingt-8 Hisui Unique Piece | $561,834 · Phillips Hong Kong · 2022 |
| 2026-10-08 | Rolex Cosmograph Daytona "Paul Newman" | $447,392 · Antiquorum Monaco · 2026 |
| 2026-10-07 | Patek Philippe "South America" World Time | $10,247,000 · Phillips Geneva · 2026 |
| 2026-10-06 | Patek Philippe Aquanaut Luce Rainbow | $478,000 · Phillips New York · 2023 |
| 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: 2026-09-26T00:15:29.697239+00:00