Watch of the Day · 2026-10-04 · from the archive
Patek Philippe Perpetual Calendar Automatic (with Leap Year)
Ref. 3450 · 18k Yellow Gold — one documented result from the 1,183-lot MostExpensiveWatches auction record, featured today.
First Patek with leap-year indicator. 1981-1985 production. Bridge between vintage 3448 and modern 3940.
Selling for $322,000 at Phillips Geneva in 2022, this 18k yellow gold Patek Philippe Perpetual Calendar Automatic ref. 3450 matters to collectors as the first Patek Philippe with a leap-year indicator. Produced between 1981 and 1985, the reference serves as a bridge between the vintage 3448 and the modern 3940. It is one of 94 documented Patek Philippe results in the corpus.
Full lot record & sources All Patek Philippe results The Grail Index
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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: 2026-10-04T00:15:21.840667+00:00