Reference
Patek Philippe Perpetual Calendar Chronograph 3970EJ 3970EJ-001
The Patek Philippe 3970E was introduced around 1992 as the third series of the 3970, with the 'E' signifying 'Etanche', French for waterproof. This series was delivered with both a closed as well as a see-through case back.
| Reference | 3970EJ-001 |
|---|---|
| Collection | Grand Complications |
| Case diameter | 36 mm |
| Case material | Yellow Gold |
| Case shape | Round |
| Case back | Open |
| Movement | Patek Philippe caliber CH |
| Dial colour | White |
| Indexes | Stick / Dot |
| Hands | Breguet |
| Crystal | Sapphire |
| Year introduced | 1991 |
| Limited edition | Yes |
This is a reference-catalog entry for the Patek Philippe Perpetual Calendar Chronograph 3970EJ 3970EJ-001. WatchFlow's Watch Library lets a dealer attach a reference like this to a piece of stock in one click, so the brand, reference and specs are filled in automatically instead of retyped — then that record drives listings, invoices and reports. See how it fits the wider watch inventory management workflow.
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