Zenith
Zenith Defy Skyline Chronograph 42 03.9500.3600/21.I001
The Zenith Defy Skyline Chronograph 42 (reference 03.9500.3600/21.I001) is a 42 mm stainless steel watch with a black dial. It runs on the automatic caliber El Primero 3600 with a 60-hour power reserve and is water resistant to 100 m. It was introduced in 2024 and is still in production.
Specifications
Case
- Reference
- 03.9500.3600/21.I001
- Collection
- Defy Skyline
- Case size
- 42 mm
- Case material
- Stainless steel
- Case shape
- Other
- Crystal
- Sapphire
- Water resistance
- 100 m
- Bracelet / strap
- Stainless steel, interchangeable strap system bracelet
Dial and bezel
- Dial
- Black
- Bezel
- Fixed, dodecagonal
Movement
- Movement
- Automatic
- Caliber
- El Primero 3600
- Power reserve
- 60 hours
- Frequency
- 36,000 vph
- Jewels
- 35
- Functions
- Small seconds, Date, Chronograph (1/10th second)
Production
- Production
- 2024 – today (current)
How it compares within the Defy Skyline family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 03.9500.3600/21.I001 (This watch) | 42 mm | Stainless steel | Black | El Primero 3600 | 2024– |
| 03.9300.3620/01.I001 | 41 mm | Stainless steel | Silver | El Primero 3620 | 2022– |
| 03.9300.3620/21.I001 | 41 mm | Stainless steel | Black | El Primero 3620 | 2022– |
| 03.9300.3620/51.I001 | 41 mm | Stainless steel | Blue | El Primero 3620 | 2022– |
| 03.9300.3620/79.I001 | 41 mm | Stainless steel | Skeleton | El Primero 3620 SK | 2023– |
| 03.9400.670/18.I001 | 36 mm | Stainless steel | Pink | Elite 670 | 2023– |
| 03.9400.670/51.I001 | 36 mm | Stainless steel | Blue | Elite 670 | 2023– |
| 03.9500.3600/01.I001 | 42 mm | Stainless steel | Silver | El Primero 3600 | 2024– |
| 03.9500.3600/51.I001 | 42 mm | Stainless steel | Blue | El Primero 3600 | 2024– |
About the Defy Skyline family
The Defy Skyline was introduced in 2022 as a 41 mm sports watch with an integrated bracelet, a faceted bezel and a dial patterned with four-pointed stars. Its El Primero 3620 drives a small seconds hand that turns once every ten seconds, a nod to the tenth-of-a-second El Primero chronographs.
The family now includes 36 mm models, skeleton versions, chronographs with the El Primero 3600 and models in steel, ceramic, rose gold and platinum. Dealers identify the size, dial and material from the reference and check the bracelet and extra strap.
Quick answers
- What size is the Zenith Defy Skyline Chronograph 42 03.9500.3600/21.I001?
- The Zenith Defy Skyline Chronograph 42 03.9500.3600/21.I001 has a 42 mm case.
- What movement does the Zenith Defy Skyline Chronograph 42 03.9500.3600/21.I001 use?
- It uses the automatic caliber El Primero 3600, with a 60-hour power reserve.
- How water resistant is the Zenith Defy Skyline Chronograph 42 03.9500.3600/21.I001?
- It is water resistant to 100 metres.
- Is the Zenith Defy Skyline Chronograph 42 03.9500.3600/21.I001 still in production?
- Yes, it is a current reference.
- When did the Zenith Defy Skyline Chronograph 42 03.9500.3600/21.I001 come out?
- It was introduced in 2024.
- What is the Zenith Defy Skyline Chronograph 42 03.9500.3600/21.I001 made of?
- The case is stainless steel. Bracelet or strap: Stainless steel, interchangeable strap system bracelet.
Catalog facts checked September 2026.