Manufacturer | Grand Seiko |
Caliber Number | 9F62, 9F62A |
In-House? | Yes |
Accuracy Rating | +/-10 seconds per year |
Battery Number | 371 / 370 (SR920S / SR920SW) |
Power Reserve | 3 year battery life |
Jewels | 9 |
Functions | Central hours; central minutes; central seconds; date |
Hacking Seconds? | Yes |
Country of Manufacture | Made in Japan |
Known Models | SBGX059 (Add your watch to the comments below…) |
This example of the Seiko caliber 9F62A was found in a Grand Seiko model SBGX059.
There is also a caliber 9F61 that is basically the same with exception to the calendar feature.
This quartz movement is thermocompensated and adjusts for temperature variations.
Additional Resources:
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