Citizen E87 Manual page 21

Charging your watch
◆ 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.
• When the watch is sufficiently charged, the second hand will move normally.
• If you do not charge the watch for 3 days or longer after the insufficient charge warning
movement has begun, the watch will be depleted of all power and stop.
The time and date are correctly shown even when
the watch is in the two-second interval movement.
However, mode switching and other watch
operations cannot be done. Also, an alarm operation
is not available.
20
2
seconds
2 seconds