![Patek Philippe 3940 FIRST SERIES Perpetual Calendar 3940 '1st Series' 18k Yellow Gold RARE FULL SET (36620) | European Watch Co. Patek Philippe 3940 FIRST SERIES Perpetual Calendar 3940 '1st Series' 18k Yellow Gold RARE FULL SET (36620) | European Watch Co.](https://images.europeanwatch.com/images-sold/Patek-Philippe-3940-FIRST-SERIES-Perpetual-Calendar-3940-1st-Seri-36620-1.jpg)
Patek Philippe 3940 FIRST SERIES Perpetual Calendar 3940 '1st Series' 18k Yellow Gold RARE FULL SET (36620) | European Watch Co.
![JUST: The 3940G – The Most Important Watch in Patek Philippe's Modern History & The Most Important Watch in my Life (but not for that reason) – BEXSONN JUST: The 3940G – The Most Important Watch in Patek Philippe's Modern History & The Most Important Watch in my Life (but not for that reason) – BEXSONN](https://www.bexsonn.com/wp-content/uploads/2016/06/IMG_8394.jpg)
JUST: The 3940G – The Most Important Watch in Patek Philippe's Modern History & The Most Important Watch in my Life (but not for that reason) – BEXSONN
![Reference 3940 'First Series' A yellow gold perpetual calendar wristwatch with moon phases, 24-hour, and leap year indication, Made in 1987 | Fine Watches | 2021 | Sotheby's Reference 3940 'First Series' A yellow gold perpetual calendar wristwatch with moon phases, 24-hour, and leap year indication, Made in 1987 | Fine Watches | 2021 | Sotheby's](https://sothebys-md.brightspotcdn.com/dims4/default/60c47b2/2147483647/strip/true/crop/3543x3543+0+0/resize/385x385!/quality/90/?url=http%3A%2F%2Fsothebys-brightspot.s3.amazonaws.com%2Fmedia-desk%2F7b%2Fd2%2F0bea67064d83bde8a2230aaa0a67%2F1646.jpg)
Reference 3940 'First Series' A yellow gold perpetual calendar wristwatch with moon phases, 24-hour, and leap year indication, Made in 1987 | Fine Watches | 2021 | Sotheby's
![The Two Watch Collection: The Patek Philippe 3940 And The A. Lange & Söhne 1815 Chronograph - Hodinkee The Two Watch Collection: The Patek Philippe 3940 And The A. Lange & Söhne 1815 Chronograph - Hodinkee](https://hodinkee.imgix.net/uploads/images/1470145593058-lcn34oc5d6j-4f1d1f6da56f5247652a644ea6873e10/PP3940ALS1815-1.jpg?ixlib=rails-1.1.0&fm=jpg&q=55&auto=format&usm=12)
The Two Watch Collection: The Patek Philippe 3940 And The A. Lange & Söhne 1815 Chronograph - Hodinkee
![Reference 3940 | A yellow gold perpetual calendar wristwatch with moon phase and leap year indication | Circa 1989 | Important Watches: Part II | 2023 | Sotheby's Reference 3940 | A yellow gold perpetual calendar wristwatch with moon phase and leap year indication | Circa 1989 | Important Watches: Part II | 2023 | Sotheby's](https://sothebys-md.brightspotcdn.com/dims4/default/b96e61f/2147483647/strip/true/crop/2000x2000+0+0/resize/1024x1024!/quality/90/?url=http%3A%2F%2Fsothebys-brightspot.s3.amazonaws.com%2Fmedia-desk%2Fwebnative%2Fimages%2Fd3%2F71%2Faa11602c405cb743aedcf938b350%2Fge2314-ctyzg-t1-01.jpg)