Casio 5274 Operation Manual

MA1203-EA
Before Using the Watch for the First Time
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.
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-2
Contents
E-2 Before Using the Watch for the First Time
E-5

Solar Charging

E-11 Indicators and Crown Operation
E-12 Setting the Current Time and Day
E-12 To adjust the time setting
E-13 To change the day indicator setting
E-14 Using the Stopwatch
E-18 Abnormal Hand Movement or Function
E-20 Specifi cations
E-4
Caution!
The case of the watch may become quite hot when charging. Guard against burn
injury after charging.
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
Low Charge and Dead Battery Conditions
An alert operation is performed when the battery charge goes low.
E-6
Charging Time
The times below are general guidelines for reference only.
Charging Time to Support Daily Use
Exposure Level (Brightness)
Outdoor sunlight (50,000 lux)
Sunlight through a window (10,000 lux)
Daylight through a window on an overcast day
(5,000 lux)
Indoor fl uorescent lighting (500 lux)
E-8
Operation Guide 5274
Spacer
Crown
Approximate Charging Time
8 minutes
30 minutes
48 minutes
8 hours
Your watch may differ somewhat from the one shown in the illustration.
Crown Operations
Some water-resistant models (100 meters, 200 meters)
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.
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.
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 effi ciency is reduced signifi cantly
even if the face is blocked only partially.
Low Battery Alert
The second hand will jump at two-second intervals to alert you when the charge is
low.
Regular Timekeeping
Low charge
Charged
Charging Time to Recover from Dead Battery
Approximate Charging
Exposure Level
Time to 1-second Hand
(Brightness)
Movement
Outdoor sunlight (50,000 lux) 3 hours
Sunlight through a window
11 hours
(10,000 lux)
Daylight through a window on
18 hours
an overcast day (5,000 lux)
Indoor fl uorescent lighting
175 hours
(500 lux)
Important!
The watch will continue to run for about six months after a full charge, even if it is
not exposed to light. For stable operation, however, expose it to light as much as
possible.
ENGLISH
E-1
Crown
Loosen
Start
Elapsed time
Current
E-3
E-5
Low Battery Alert
2-second jump
E-7
Approximate Time to
Full Charge
24 hours
94 hours
144 hours
– – –
E-9