GS 4420-9000
c. 1967
Years estimated from 5 dated marketplace listings; seller-stated, unverified.
Variants
No variants documented yet.
Reference specifications
- Brand
- Seiko
- Model
- GS
- Reference
- 4420-9000
- Production
- c. 1967
- Case diameter
- 38 mm
Specs shared by all variants. Variant pages show where a variant differs.