Seiko 1F20 Movement Details
Seiko caliber 1F20 is an analog quartz watch movement.
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| Sub-brands: | Creo, Lassale, Lukia, Exceline, Tissé, Moorea |
| Battery: | SR416SW / 337 (Silver oxide) |
| Accuracy: | ±15 seconds/month |
| Day / date? | No |
| GMT / world time? | No |
| Chronograph? | No |
| Number of jewels: | 0 |
| Size / diameter: | 12.5mm (10.0mm x 11.5mm) |
| Height: | 1.8mm |
| Development division: | Suwa (Nagano Prefecture, Japan) |
| Notes: | Used in ladies watches. |
| PDF guides: | Technical guide : 1F20A |
| Related movements: | 1F21 |
Part Codes
| Stem code: | 351807 (tap 13) |
| Screw codes: | 022221 |