Citizen Promaster Sky Super Skyhawk JY0080-62E Instruction Manual page 35

When the watch reaches a low charge state—insufficient charge warning
function
When the power reserve becomes low, the second hand moves once every two
seconds—This is the insufficient charge warning function. Charge the watch by
exposing the dial to light.
• After the watch is charged, the second hand will move normally. See page 34.
• If you have not charged the watch for six days or more since the insufficient charge
warning movement began, the watch will run out power and stop.
Caution
When the second hand moves once every
two seconds, you cannot use any functions—
chronograph, alarm, etc.—except the time indication.
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