GS 43999
c. 1964–c. 1965
Years estimated from 8 dated marketplace listings; seller-stated, unverified.
Variants
No variants documented yet.
Reference specifications
- Brand
- Seiko
- Model
- GS
- Reference
- 43999
- Production
- c. 1964–c. 1965
- Case material
- Stainless steel
- Movement
- Manual winding
Specs shared by all variants. Variant pages show where a variant differs.