Seiko 9980 Movement Details
Seiko caliber 9980 is an analog quartz watch movement. Production started around 1979.
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| Sub-brands: | Superior |
| Battery: | SR927SW / 395 (Silver oxide) |
| Accuracy: | ±5 seconds/year |
| Day / date? | No |
| GMT / world time? | No |
| Chronograph? | No |
| Hacking? | Yes |
| Rate: | 32,768 Hz |
| Size / diameter: | 26.0mm |
| Height: | 3.4mm |
| Development division: | Suwa (Nagano Prefecture, Japan) |
| Notes: | Twin quartz for greater accuracy. The same as cal. 9983 but without day and date display. |
| Related movements: | 9983 |