Seiko 3820 Movement Details
Seiko caliber 3820 is a high grade analog quartz watch movement. Production started around 1972.
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| Sub-brands: | VFA (Very Fine Adjusted) |
| Battery: | SR44SW / 303 (Silver oxide) |
| Accuracy: | ±15 seconds/month |
| Day / date? | No |
| GMT / world time? | No |
| Chronograph? | No |
| Rate: | 16,384 Hz |
| Number of jewels: | 7 |
| Development division: | Suwa (Nagano Prefecture, Japan) |
| Notes: | The same as cal. 3823 but without day or date display. |
| Related movements: | 38 3823 |