Seiko 7439 movement
| Type: | Analog Quartz |
| Battery: | SR721SW / 362 (Silver oxide) |
| GMT/world time? | No |
| Chronograph? | No |
Articles (repairs, services & mods)
- Seiko 7439-5030 Quartz 1982 [tentotwo.nl]
| Type: | Analog Quartz |
| Battery: | SR721SW / 362 (Silver oxide) |
| GMT/world time? | No |
| Chronograph? | No |
