Portofino Chronograph 3731
c. 1992–c. 1997
Years estimated from 3 dated marketplace listings; seller-stated, unverified.
Variants
No variants documented yet.
Reference specifications
- Brand
- IWC
- Model
- Portofino Chronograph
- Reference
- 3731
- Production
- c. 1992–c. 1997
- Case diameter
- 35 mm
- Movement
- Quartz
Specs shared by all variants. Variant pages show where a variant differs.