|Caliber Number||9F62, 9F62A|
|Accuracy||+/-10 seconds per year|
|Battery Number||371 / 370 (SR920S / SR920SW)|
|Power Reserve||3 year battery life|
|Functions||Central hours; central minutes; central seconds; date|
|Country of Manufacture||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 thermo compensated and adjusts for temperature variations.