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Operation Guide 5576
E-59
Temperature
x Never leave your watch on the dashboard of a car, near a heater, or in any other
location that is subject to very high temperatures. Do not leave your watch where it
will be exposed to very low temperatures. Temperature extremes can cause your
watch to lose or gain time, to stop, or otherwise malfunction.
x Leaving your watch in an area hotter than +60°C (140°F) for long periods can lead
to problems with its LCD. The LCD may become difficult to read at temperatures
lower than 0°C (32°F) and greater than +40°C (104°F).
Impact
x Your watch is designed to withstand impact incurred during normal daily use and
during light activity such as playing catch, tennis, etc. Dropping your watch or
otherwise subjecting it to strong impact, however, can lead to malfunction. Note that
watches with shock-resistant designs (G-SHOCK, BABY-G, G-MS) can be worn
while operating a chain saw or engaging in other activities that generate strong
vibration, or while engaging in strenuous sports activities (motocross, etc.)
E-58
Band
x Tightening the band too tightly can cause you to sweat and make it difficult for air
to pass under the band, which can lead to skin irritation. Do not fasten the band too
tightly. There should be enough room between the band and your wrist so you can
insert your finger.
x Deterioration, rust, and other conditions can cause the band to break or come off
of your watch, which in turn can cause band pins to fly out of position or to fall out.
This creates the risk of your watch falling from your wrist and becoming lost, and
also creates the risk of personal injury. Always take good care of your band and
keep it clean.
x Immediately stop using a band if you even notice any of the following: loss of band
flexibility, band cracks, band discoloration, band looseness, band connecting pin
flying or falling out, or any other abnormality. Take your watch to your original
retailer or to a CASIO service center for inspection and repair (for which you will be
charged) or to have the band replaced (for which you will be charged).
E-57
x A trained technician will inspect your watch for proper water resistance whenever
you have its battery replaced. Battery replacement requires the use of special tools.
Always request battery replacement from your original retailer or from an authorized
CASIO service center.
x Some water-resistant watches come with fashionable leather bands. Avoid
swimming, washing, or any other activity that causes direct exposure of a leather
band to water.
x The inside surface of the watch glass may fog when the watch is exposed to
a sudden drop in temperature. No problem is indicated if the fogging clears up
relatively quickly. Sudden and extreme temperature changes (such as coming into
an air conditioned room in the summer and standing close to an air conditioner
outlet, or leaving a heated room in the winter and allowing your watch to come into
contact with snow) can cause it to take longer for glass fogging to clear up. If glass
fogging does not clear up or if you notice moisture inside of the glass, immediately
stop using your watch and take it to your original retailer or to an authorized CASIO
service center.
x Your water-resistant watch has been tested in accordance with International
Organization for Standardization regulations.
E-56
x Watches that do not have WATER RESIST or WATER RESISTANT marked on the
back cover are not protected against the effects of sweat. Avoid using such a watch
under conditions where it will be exposed to large amounts of sweat or moisture, or
to direct splashing with water.
x Even if a watch is water resistant, note the usage precautions described below.
Such types of use reduce water resistance performance and can cause fogging of
the glass.
− Do not operate the crown or buttons while your watch is submersed in water or
wet.
− Avoid wearing your watch while in the bath.
− Do not wear your watch while in a heated swimming pool, sauna, or any other high
temperature/high humidity environment.
− Do not wear your watch while washing your hands or face, while doing housework,
or while performing any other task that involves soaps or detergents.
x After submersion in seawater, use plain water to rinse all salt and dirt from your
watch.
x To maintain water resistance, have the gaskets of your watch replaced periodically
(about once every two or three years).
E-55
Operating Precautions
Water Resistance
x The information below applies to watches with WATER RESIST or WATER
RESISTANT marked on the back cover.
Water
Resistance
Under Daily
Use
Enhanced Water Resistance Under
Daily Use
5
Atmospheres
10
Atmospheres
20
Atmospheres
Marking
On watch front or on
back cover
No
BAR mark
5BAR 10BAR 20BAR
Example of
Daily Use
Hand washing, rain Yes Yes Yes Yes
Water-related work, swimming
No Yes Yes Yes
Windsurfing No No Yes Yes
Skin diving No No Yes Yes
x
Do not use your watch for scuba diving or other types of diving that requires air tanks.
OPUM-E
E-54
Stopwatch:
Measuring unit: 1/100 second
Measuring capacity: 59
'
59.99
"
Measuring modes: Elapsed time, split time, two finishes
Alarm: Daily alarm; Hourly Time Signal
Other: Battery power indicator, Power Saving, Button operation tone on/off, LED light
(Super illuminator)
Power Supply: Solar panel and one rechargeable battery
Approximate battery operating time: 11 months under the conditions below.
• Display on 18 hours per day, sleep state 6 hours per day
• 1 illumination operation (1.5 seconds) per day
• 10 seconds of alarm operation per day
Frequent use of illumination runs down the battery.
Specifications are subject to change without notice.
E-53
Specifications
Accuracy at normal temperature: ±30 seconds a month
Timekeeping: Hour, minutes, seconds, p.m. (P), year, month, day, day of the week,
alarm countdown
Time format: 12-hour and 24-hour
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Other: Home City code (can be assigned one of 48 city codes); Standard Time/
Daylight Saving Time (summer time)
World Time: 48 cities (31 time zones)
Other: Daylight Saving Time/Standard Time
Countdown Timer:
Measuring unit: 1 second
Countdown range: 60 minutes
Setting unit: 1 minute
E-52
Note
• Performing repeated signal receive, alarm, hourly time signal, light, or other similar
operations over a short time can cause a sudden drop in watch’s charge. When this
happens, the watch enters the Recover Mode, indicated by
R
(Recover) flashing on
the display. The Recover Mode is the same as a low battery charge state.
• Access to some functions is limited while the watch is in the Recover Mode. Normal
operation will resume after recovery is complete. For more information, see
“Recover Mode” (page E-14).
• A flashing
R
(Recover) or
C
indicator means that the charge level of the watch is
extremely low. Immediately expose the watch to light to charge it.
E-51
World Time Mode
■
The time for my World Time City is not correct in the World Time Mode.
This could be due to incorrect switching between standard time and daylight saving
time. See “To specify standard time or daylight saving time (DST) for a city” (page E-32)
for more information.
Charging
■
The watch does not resume operation after I expose it to light.
This can happen after the power level drops to Level 5 (page E-12). Continue exposing
the watch to light until the battery power indicator shows HI or MID.
■
Flashing R Indicator
The watch is in the Recover Mode. Wait until recovery is complete (about 15 minutes).
The watch will recover more quickly if you place it in a brightly lit location.
E-50
Troubleshooting
Time Setting
■
The current time setting is off by hours.
Your Home City setting may be wrong (page E-24). Check your Home City setting and
correct it, if necessary.
■
The current time setting is off by one hour.
You may need to change your Home City’s standard time/daylight saving time (DST)
setting. Use the procedure under “To change the current time and date settings” (page
E-27) to change the standard time/daylight saving time (DST) setting.
■
The hands are misaligned.
This could indicate that the watch has been exposed to magnetism or strong impact,
which has caused problems with proper hand alignment. Adjust the watch’s hand
home position alignment (page E-45).
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