Operation Guide 5587/5661
E-9
Charging Time
The times below are general guidelines for reference only.
Charging Time to Support Daily Use
Exposure Level (Brightness) Approximate Charging Time
Outdoor sunlight (50,000 lux) 6 minutes
Sunlight through a window (10,000 lux) 23 minutes
Daylight through a window on an overcast day
(5,000 lux)
36 minutes
Indoor fluorescent lighting (500 lux) 6 hours
E-8
Low Battery Alert
The second hand will jump at two-second intervals to alert you when the charge is
low.
2-second jump
E-7
Low Charge and Dead Battery Conditions
An alert operation is performed when the battery charge goes low.
E-6
Caution!
x The case of the watch may become quite hot when charging. Guard against burn
injury after charging.
x Avoid charging in the following locations, and anywhere else where the watch may
become very hot.
− On the dashboard of an automobile parked in the sun
− Close to an incandescent light source or other sources of heat
− Locations exposed to direct sunlight for long periods
Battery Indicator
While the crown is pushed in, holding down the B button for about one second will
cause the stopwatch second hand to move to a position that indicates the current
battery level (about how long the watch can continue operating).
H : At least four months
M : Two to four months
L : No more than two months
After about two seconds, the hand will return to 12o’clock.
E-5
Solar Charging
A solar panel generates electrical power that charges a built-in (secondary) battery.
The entire face is a solar panel, so power is generated when the face is exposed to
light. Keep the watch exposed to light as much as possible.
Charging the Battery
When you are not wearing the watch, leave it where it is
exposed to light. For stable operation, expose the watch to at
least a half day of light per month.
When wearing the watch, try to keep your clothing from
blocking its face (solar panel). Charging efficiency is reduced
significantly even if the face is blocked only partially.
E-4
Contents
Before Using the Watch for the First Time .......................................... E-2
Solar Charging .................................................................................... E-5
Indicators and Crown Operation ....................................................... E-11
Setting the Current Time and Day .................................................... E-12
To adjust the time setting ...........................................................................E-12
To change the day indicator setting ............................................................E-13
Using the Stopwatch ........................................................................ E-14
Specifications................................................................................... E-17
Operating Precautions ...................................................................... E-18
User Maintenance ............................................................................ E-28
E-3
Crown Operations
Some water-resistant models (10BAR, 20BAR) have a screw-
in crown. When you need to perform a crown operation,
rotate it towards you to unscrew it. Then pull the crown out.
Avoid applying undue force when pulling. The watch loses
its water resistance while the crown is unscrewed. After
performing a crown operation, fully screw the crown back in.
Crown
Loosen
If your watch has a rotary bezel...
You can rotate the bezel to align its
▼
mark with
the minute hand. Then you will be able to tell how
much time has elapsed since aligning the
▼
mark.
Start
Elapsed time
Current
E-2
Before Using the Watch for the First Time
Crown
Spacer
x Depending on your watch model, there may be a spacer
installed at the factory around the crown. If your watch has
a spacer, you should remove the spacer before using the
watch.
x After removing the spacer, use the procedures in “Crown
Operations” (page E-3) and “To adjust the time setting” (page E-12)
to set up the watch for use.
E-1
ENGLISH
x Be sure to keep all user documentation handy for future reference.
x Your watch may differ somewhat from the one shown in the illustration.
MA2007-EA
©
2018 CASIO COMPUTER CO., LTD.
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