Citizen CB1 Series Instruction Manual page 37

Your watch will run for approximately six months from a full charge or up to two years
with the power save feature engaged.
After the second hand starts moving once every two seconds, it will last for
approximately three days.
Power save feature
When the watch is not exposed to light for more than seven days such as when you
store it in the dark, the minute hand and second hand automatically stop to save
power. However, the watch still keeps the time.
• When the crown position is
• The power save feature can not be activated manually.
To cancel the power save feature
When the watch is exposed to light sufficient for charging, the power save feature is
automatically disengaged and normal time indication will resume.
After the power save feature is disengaged, you should receive the time signal
manually. See pages 24 and 25.
• The power save feature cannot be canceled by operating the crown or buttons.
or , the power save feature will not activate.
Recharging your watch
35