Seiko 3863 Movement Details
Seiko caliber 3863 is an analog quartz watch movement. Production started around 1973.
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| Sub-brands: | QR, 3003 |
| Battery: | SR44SW / 303 (Silver oxide) |
| Accuracy: | ±20 seconds/month |
| Day / date? | Day + date |
| GMT / world time? | No |
| Chronograph? | No |
| Rate: | 16,384 Hz |
| Size / diameter: | 25.6mm |
| Height: | 5.3mm |
| Development division: | Suwa (Nagano Prefecture, Japan) |
| Notes: | The same as cal. 3862 but with day display (as well as date). It's also a less refined (and therefore more affordable) version of cal. 3823. |
| PDF guides: | Technical guide : 3819A & 3863A |
| Related movements: | 3819 3823 3862 3883 |
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