Watch of the Day · 2026-07-13 · from the archive
Patek Philippe Grandmaster Chime
Ref. 6300A-010 · Stainless Steel — one documented result from the 1,183-lot MostExpensiveWatches auction record, featured today.
Steel-cased Grandmaster Chime made exclusively for the Only Watch 2019 charity sale. Patek's most complicated wristwatch (20 complications, double-faced reversible case) in a metal Patek never produces for retail. Sold for charity.
The 2019 sale of the Patek Philippe Grandmaster Chime ref. 6300A-010 for $31,000,000 at Christie’s Geneva established a brand record. Created exclusively for the Only Watch charity auction, this is Patek Philippe’s most complicated wristwatch, featuring 20 complications and a double-faced reversible case. Its significance stems from its stainless steel construction—a material the brand never produces for retail. This result remains the highest of 87 documented Patek Philippe entries in the corpus.
Full lot record & sources All Patek Philippe results The Grail Index
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| 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: 2026-07-13T00:15:28.762927+00:00