Citizen Eco-Drive 200 Meter BM6400-00E User Manual page 11

* The recharging time is the time the watch is continuously exposed to direct light.
Full recharging time ...Time required to fully charge when the watch has
(Empty to full)
One day usage ..........Time required to charge the watch sufficient for one-day
CAUTION:
When recharging the watch after it is completely in the stop state, be sure to pull
out the crown to the time setting position.
After recharging, set the time and push the crown firmly back into its normal
position.
completely stopped.
use with one-second interval operation.
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