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Operating Precautions
Water Resistance
• 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
• Do not use your watch for scuba diving or other types of diving that requires air tanks.
• 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.
• 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.
• After submersion in seawater, use plain water to rinse all salt and dirt from your watch.
• To maintain water resistance, have the gaskets of your watch replaced periodically (about
once every two or three years).
• 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.
• 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.
• 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.
• Your water-resistant watch has been tested in accordance with International Organization
for Standardization regulations.
Band
• 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.
• 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.
• 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).
Temperature
• 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.
Impact
• 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.)
Magnetism
• The hands of analog and combination (analog-digital) watches are moved by a motor that
uses magnetic force. When such a watch is close to a device (audio speakers, magnetic
necklace, cell phone, etc.) that emits strong magnetism, the magnetism can cause
timekeeping to slow down, speed up, or stop, resulting in the incorrect time being displayed.
• Very strong magnetism (from medical equipment, etc.) should be avoided because it can
cause malfunction of your watch and damage to electronic components.
Electrostatic Charge
• Exposure to very strong electrostatic charge can cause your watch to display the wrong
time. Very strong electrostatic charge even can damage electronic components.
Chemicals
• Do not allow your watch to come into contact with thinner, gasoline, solvents, oils, or
fats, or with any cleaners, adhesives, paints, medicines, or cosmetics that contain such
ingredients. Doing so can cause discoloration of or damage to the resin case, resin band,
leather, and other parts.
Storage
• If you do not plan to use your watch for a long time, thoroughly wipe it free of all dirt,
sweat, and moisture, and store it in a cool, dry place.
Resin Components
• Allowing your watch to remain in contact with other items or storing it together with other
items for long periods while it is wet can cause color on resin components to transfer
to the other items, or the color of the other items to transfer to the resin components of
your watch. Be sure to dry off your watch thoroughly before storing it and make sure it
is not in contact with other items.
• Leaving your watch where it is exposed to direct sunlight (ultraviolet rays) for long periods
or failure to clean dirt from your watch for long periods can cause it to become discolored.
• Friction caused by certain conditions (strong external force, sustained rubbing, impact,
etc.) can cause discoloration of painted components.
• If there are printed figures on the band, strong rubbing of the printed area can cause
discoloration.
• Leaving your watch wet for long periods can cause fluorescent color to fade. Wipe the
watch dry as soon as possible after it becomes wet.
• Semi-transparent resin parts can become discolored due to sweat and dirt, and if exposed
to high temperatures and humidity for long periods.
• Daily use and long-term storage of your watch can lead to deterioration, breaking, or
bending of resin components. The extent of such damage depends on usage conditions
and storage conditions.
Leather Band
• Allowing your watch to remain in contact with other items or storing it together with other
items for long periods while it is wet can cause the color of the leather band to transfer
to the other items or the color of the other items to transfer to the leather band. Be sure
to dry off your watch thoroughly with a soft cloth before storing it and make sure it is not
in contact with other items.
• Leaving a leather band where it is exposed to direct sunlight (ultraviolet rays) for long periods
or failure to clean dirt from a leather band for long periods can cause it to become discolored.
CAUTION: Exposing a leather band to rubbing or dirt can cause color transfer and
discoloration.
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