Citizen E365 Manual page 15

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. Be sure to fully charge your watch
immediately as outlined below.
• When the watch is sufficiently charged, the second hand
will move normally.
• If you left the watch without charging for a few days after the insufficient charge
warning movement has begun, the watch will be depleted of all power and stop.
During the insufficient charge warning state
The time and calendar are indicated correctly.
Charging your watch
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