Citizen Eco-Drive 8637 - Your Watch; Eco-Drive (solar powered) watch; Insufficient charge warning

4
Eco-Drive(solar
powered)watch
The watch operates by
converting sunlight and other
light into electrical energy.
Once the rechargeable cell is
fully charged, the watch will
function for approximately
6 months.
YourWatch
Insufficientchargewarning
If the power becomes
very low, the second hand
advances at 2-second
intervals, indicating that
charging is necessary.
When the second hand
starts to advance at
2-second intervals, expose the watch to light
until it is fully charged.
If the watch is not exposed to light within
approximately 4 days after the insufficient
charge warning starts, the watch will stop.