Seiko A158 Movement Details
Seiko caliber A158 is a digital watch movement. Production was in the 1970s.
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| Battery: | SR1130W / 389 (Silver oxide) |
| Accuracy: | ±10 seconds/month |
| Day / date? | Day + date |
| GMT / world time? | No |
| Chronograph? | Yes |
| Alarm? | Yes |
| Rate: | 32,768 Hz |
| Size / diameter: | 30.1mm |
| Height: | 6.5mm |
| Development division: | Suwa (Nagano Prefecture, Japan) |
| Notes: | Has a battery life indicator function where the display starts flashing when the battery is running low. |
| Related movements: | A156 A159 |
Part Codes
| Screw codes: | 022493 |