Seiko W309 Movement Details
Seiko caliber W309 is a digital watch movement.
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| Sub-brands: | Alba, Pulsar |
| Battery: | CR2016 / (Lithium) |
| Accuracy: | ±20 seconds/month |
| Day / date? | Day + date |
| GMT / world time? | No |
| Chronograph? | Yes |
| Alarm? | Yes |
| Size / diameter: | 27.4mm |
| Height: | 4.8mm |
| PDF guides: |
Battery replacement guide
: W309A
Technical guide |
| Related movements: | W306 W307 W308 |