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◆ If the charging insufficiency occurs during radio signal reception, the operation will
stop automatically, the watch will return to the time before the operation, and
2-second interval movement will begin.
Regularly charge your radio controlled watch so it does not become insufficiently
charged.
C. Overcharging Prevention Function
When the rechargeable cell becomes fully charged by exposing the watch face to light,
the overcharging prevention function is automatically activated to prevent the battery
from being charged further.
No matter how much the watch is charged, it will not affect the rechargeable cell,
timekeeping, functions or performance of the watch.