Zenith
Zenith Pilot Automatic 03.4000.3620/21.I001
The Zenith Pilot Automatic (reference 03.4000.3620/21.I001) is a 40 mm stainless steel watch with a black dial. It runs on the automatic caliber El Primero 3620 with a 60-hour power reserve and is water resistant to 100 m. It was introduced in 2023 and is still in production.
Specifications
Case
- Reference
- 03.4000.3620/21.I001
- Collection
- Pilot
- Case size
- 40 mm
- Case material
- Stainless steel
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 100 m
- Bracelet / strap
- Interchangeable strap system
Dial and bezel
- Dial
- Black
- Bezel
- Fixed
Movement
- Movement
- Automatic
- Caliber
- El Primero 3620
- Power reserve
- 60 hours
- Frequency
- 36,000 vph
- Jewels
- 31
- Functions
- Date
Production
- Production
- 2023 – today (current)
How it compares within the Pilot family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 03.4000.3620/21.I001 (This watch) | 40 mm | Stainless steel | Black | El Primero 3620 | 2023– |
| 03.2430.3000/21.C738 | — | Stainless steel | Black | — | — |
| 03.2430.693/21.C723 | 48 mm | Stainless steel | Black | Elite 693 | — |
| 03.4000.3652/21.I001 | 42.5 mm | Stainless steel | Black | El Primero 3652 | 2023– |
| 29.2430.4069/21.C800 | 45 mm | Bronze | Black | El Primero 4069 | — |
| 29.2430.4069/57.C808 | 45 mm | Bronze | Blue | El Primero 4069 | — |
| 29.2430.679/57.C808 | 45 mm | Bronze | Blue | Elite 679 | — |
| 49.4000.3620/21.I001 | 40 mm | Black ceramic | Black | El Primero 3620 | 2023– |
| 49.4000.3652/21.I001 | 42.5 mm | Black ceramic | Black | El Primero 3652 | 2023– |
About the Pilot family
Zenith has a long link with aviation and registered the Pilot name early in its history. The Pilot Type 20 of the 2010s took its look from vintage cockpit instruments, with large numerals and a big onion crown.
In 2023 Zenith launched a new Pilot collection: the 40 mm Pilot Automatic with the El Primero 3620, and the 42.5 mm Pilot Big Date Flyback with the El Primero 3652, in steel and black ceramic. The catalog also lists earlier references in aged steel and bronze. Dealers identify the generation, size and caliber from the reference.
Quick answers
- What size is the Zenith Pilot Automatic 03.4000.3620/21.I001?
- The Zenith Pilot Automatic 03.4000.3620/21.I001 has a 40 mm case.
- What movement does the Zenith Pilot Automatic 03.4000.3620/21.I001 use?
- It uses the automatic caliber El Primero 3620, with a 60-hour power reserve.
- How water resistant is the Zenith Pilot Automatic 03.4000.3620/21.I001?
- It is water resistant to 100 metres.
- Is the Zenith Pilot Automatic 03.4000.3620/21.I001 still in production?
- Yes, it is a current reference.
- When did the Zenith Pilot Automatic 03.4000.3620/21.I001 come out?
- It was introduced in 2023.
- What is the Zenith Pilot Automatic 03.4000.3620/21.I001 made of?
- The case is stainless steel. Bracelet or strap: Interchangeable strap system.
Catalog facts checked September 2026.