El Primero Chronograph 20.0250.400.
c. 1980–?
Years estimated from 3 dated marketplace listings; seller-stated, unverified. Listings also state years up to 2003; end of production left open.
Variants
No variants documented yet.
Reference specifications
- Brand
- Zenith
- Model
- El Primero Chronograph
- Reference
- 20.0250.400.
- Production
- c. 1980–?
Specs shared by all variants. Variant pages show where a variant differs.