Seiko 7820 Movement Details
Seiko caliber 7820 is a high grade analog quartz watch movement. Production was in the 1980s.
| Sub-brands: | Chariot, Credor |
| Battery: | SR927SW / 395 (Silver oxide) |
| Accuracy: | ±20 seconds/month |
| Day / date? | No |
| GMT / world time? | No |
| Chronograph? | No |
| Hacking? | No |
| Rate: | 32,768 Hz |
| Number of jewels: | 5 |
| Size / diameter: | 23.3mm |
| Height: | 2.9mm |
| Development division: | Suwa (Nagano Prefecture, Japan) |
| Related movements: | 7830 7832 |