Seiko 7439 Movement Details
Seiko caliber 7439 is an analog quartz watch movement produced in the 1980s.
| Battery: | SR721SW / 362 (Silver oxide) |
| Accuracy: | ±15 seconds/month |
| Day / date? | Date only |
| GMT / world time? | No |
| Chronograph? | No |
| Number of jewels: | 2 |
| Development division: | Daini (Kameido, Tokyo) |
Articles
- Seiko 7439-5030 Quartz 1982 [tentotwo.nl]