Seiko 8T63 Movement Details
Seiko caliber 8T63 is an analog quartz watch movement.
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| Sub-brands: | Spirit |
| Battery: | SR936SW / 394 (Silver oxide) |
| Accuracy: | ±15 seconds/month |
| Day / date? | Date only |
| GMT / world time? | No |
| Chronograph? | Yes |
| Alarm? | No |
| Hacking? | Yes |
| Rate: | 32,768 Hz |
| Number of jewels: | 0 |
| Size / diameter: | 29.0mm |
| Height: | 5.1mm |
| Notes: | This is a "meca-quartz" watch in that it needs a battery and is regulated by a quartz oscillator, but it has a mechanical chronograph function. As a result, the chronograph seconds hand has a smooth, sweep movement, and snaps back immediately when reset. This movement is similar to cal. 8T67 but with a 24-hour hand instead of a stopwatch hour hand. |
| PDF guides: | Technical guide : 8T63A |
| Related movements: | 8T67 8T68 |
Part Codes
| Stem code: | 351177 (tap 10) |
| Screw codes: | 012354, 016121 |