Seiko S240 Movement Details
Seiko caliber S240 is a digital watch movement. Production was in the 1990s.
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| Sub-brands: | Pulse Meter |
| Battery: | CR2025 / (Lithium) |
| Accuracy: | ±20 seconds/month |
| Day / date? | Day + date |
| GMT / world time? | No |
| Chronograph? | Yes |
| Alarm? | Yes |
| Rate: | 32,768 Hz |
| Size / diameter: | 32.0mm |
| Height: | 6.8mm |
| Development division: | Daini (Kameido, Tokyo, Japan) |
| Notes: | Has a pulse sensor to measure pulse rate from 30 to 210 beats per minute, as well as physical exercise intensity. |
| PDF guides: |
Battery replacement guide
: S240A
Technical guide |