Citizen C650 - Timer Operation; Timer Setting Procedure

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18. Replacing the Secondary Battery
Unlike ordinary silver-based batteries, the secondary battery used in this watch
does not have to be periodically replaced since it is able to be charged and
discharged repeatedly.
Handling of Secondary Battery
• Please do not attempt to remove the secondary battery from the watch.
• If the secondary battery has been unavoidably removed, store it in a location
out of the reach of small children to prevent accidental swallowing.
• If the secondary battery should happen to be swallowed, please consult a
physician and seek medical attention immediately.
Only Use the Specified Secondary Battery
• Never use a secondary battery other than the secondary battery used in this
watch. Although the watch is designed not to operate if another type of
secondary battery is installed, since this may result in overcharging that can
cause the secondary battery to rupture, there is the risk of both damage to the
watch and injury to the wearer.
• Only use the specified secondary battery when replacing the secondary
battery.
19. Using the Register Ring
The bezel design may vary depending on the model.
[Calculation function]
Note the following points when using this function. Use the calculation function
of this watch only as a guide.These scales do not indicate the position of the
decimal point.
60
70
80
90
55
10
80
90
1
55
10
N
A
U
T.
70
S
T
A
T.
Speed index
Outer scale
(distance scale)
Inner scale
(Time acale)