Cal. No. F990
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Information
To avoid hand misalignment by impacts or magnetism — Perfex
Three features combined together prevent misalignment of the hands caused by external factors such as impact and magnetism.
| JIS Type-1 antimagnetic performance | This watch maintains its time functionality as close as 5 cm away from devices that generate a magnetic field during normal use. | |
|---|---|---|
| Impact detection function | This function prevents unwanted movement of the hour, minute and second hands when the watch receives an impact. | |
| Automatic hand correction function | Automatic adjustment function of the reference position of the hour, minute and second hands The reference position of the hands is checked at regular intervals. If any misalignment is caused, the hour, minute and second hands are rapidly corrected to maintain the correct time. |