Seiko 7121 Movement Details
Seiko caliber 7121 is an analog quartz watch movement. Production was in the 1980s.
| Sub-brands: | Silverwave |
| Battery: | SR1130W / 389 (Silver oxide) |
| Accuracy: | ±15 seconds/month |
| Day / date? | No |
| GMT / world time? | No |
| Chronograph? | No |
| Hacking? | Yes |
| Number of jewels: | 2 |
| Development division: | Daini (Kameido, Tokyo, Japan) |
| Notes: | The same as cal. 7122 but without date display. |
| Related movements: | 7122 7123 |