Seiko 8121 Movement Details
Seiko caliber 8121 is an analog quartz watch movement.
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| Sub-brands: | Chronos |
| Battery: | SR1120SW / 381 (Silver oxide) |
| Accuracy: | ±15 seconds/month |
| Day / date? | No |
| GMT / world time? | No |
| Chronograph? | No |
| Development division: | Suwa (Nagano Prefecture, Japan) |
| Notes: | The same as cal. 8122 but without date display. |
| Related movements: | 8122 8123 |