Patek Philippe
Patek Philippe Perpetual Calendar Chronograph 3970 3970EG
The Patek Philippe Perpetual Calendar Chronograph 3970 (reference 3970EG) is a 36 mm 18k white gold watch with a silver dial. It runs on the manual caliber CH 27-70 Q. It was made from 1987 to 2004.
Specifications
Case
- Reference
- 3970EG
- Collection
- Grand Complications
- Case size
- 36 mm
- Case material
- 18k white gold
- Case shape
- Round
- Crystal
- Sapphire
Dial and bezel
- Dial
- Silver
Movement
- Movement
- Manual
- Caliber
- CH 27-70 Q
- Functions
- Perpetual calendar, Chronograph, Moon phase, Day/night indicator, Leap year indicator, Small seconds
Production
- Production
- 1987–2004
Dial versions
This reference was made with these dials and finishes.
3970EG Silver
3970EG-016
Applied markers
How it compares within the Grand Complications family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 3970EG (This watch) | 36 mm | 18k white gold | Silver | CH 27-70 Q | 1987–2004 |
| 5204G | 40.2 mm | — | — | CHR 29-535 PS Q | 2021– |
| 5208R | 42 mm | 18k rose gold | Black | R CH 27 PS QI | 2018–2025 |
| 5236P | 41.3 mm | Platinum | — | 31-260 PS QL | 2021– |
| 5270P-001 | 41 mm | Platinum | Salmon | CH 29-535 PS Q | 2018–2021 |
| 5320G-001 | 40 mm | 18k white gold | Cream | 324 S Q | 2017– |
| 5327G | 39 mm | 18k white gold | Blue | 240 Q | 2016– |
| 5327R | 39 mm | 18k rose gold | Ivory | 240 Q | 2016– |
| 5470P-001 | 41 mm | Platinum | Blue | CH 29-535 PS 1/10 | 2022– |
About the Grand Complications family
Grand Complications is Patek Philippe's heading for its most complex watches: perpetual calendars, split-seconds chronographs, minute repeaters, tourbillons and astronomical displays such as the sidereal time and sky charts of the Celestial models. It continues a tradition that goes back to the brand's complicated pocket watches.
References in the catalog include perpetual calendars such as the 5160/500R with an engraved case, the minute repeater perpetual calendar 5374, the Celestial 6104 and the Grandmaster Chime 6300, a reversible watch with grande and petite sonnerie. Production of many of these is very small. For dealers, provenance, the Certificate of Origin, an Extract from the Archives and service by the brand matter more here than anywhere else in the range.
Quick answers
- What size is the Patek Philippe Perpetual Calendar Chronograph 3970 3970EG?
- The Patek Philippe Perpetual Calendar Chronograph 3970 3970EG has a 36 mm case.
- What movement does the Patek Philippe Perpetual Calendar Chronograph 3970 3970EG use?
- It uses the manual caliber CH 27-70 Q.
- Is the Patek Philippe Perpetual Calendar Chronograph 3970 3970EG still in production?
- No. It was made until 2004.
- When did the Patek Philippe Perpetual Calendar Chronograph 3970 3970EG come out?
- It was introduced in 1987 and made until 2004.
- What is the Patek Philippe Perpetual Calendar Chronograph 3970 3970EG made of?
- The case is 18k white gold.
Catalog facts checked October 2026.