Precautions
Operating Precautions
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Water Resistance
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A diver’s watch is designed to withstand
pressure up to 200 meters. Do not wear this
watch at depths greater than the depth
marked on it. It can be worn while skin
diving, scuba diving, etc. Do not use a
diver’s watch for deep diving (diving with a
gas mixture) or at a depth greater than that
indicated.
●
Do not operate the crown while the watch is
submerged.
●
After submersion in seawater, use plain
water to rinse all salt and dirt from your
watch.
●
To maintain water resistance, be sure to
have the gaskets of your watch replaced
regularly (once every two 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.
●
Your diver’s watch has been tested in
accordance with International Organization
for Standardization regulations.
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Precautions before Diving
●
Check to make sure that all watch functions
are working properly.
●
Check to make sure the battery is charged
sufficiently.
ー
Before using the watch for diving, charge
its battery up to Level 2.
●
Do not over-use display illumination while
diving. Doing so can cause your watch to
disable illumination and alarms in order to
conserve battery power. This can also
cause all watch operation to be momentarily
disabled.
●
Check to make sure that the current time
setting is correct.
●
Check the watch glass for scratching,
cracking, fogging, and other abnormalities.
●
Check the case and band for damage and
other abnormalities. Also, ensure that the
band is securely tightened.
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Precautions while Diving
●
Take care so your watch does not come into
contact with rocks and other hard items.
●
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.
●
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
●
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
●
Though a digital watch normally is not
affected by magnetism, very strong
magnetism (from medical equipment, etc.)
should be avoided because it can cause
malfunction 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.
●
Electrostatic charge can cause the display
to go blank momentarily or cause a rainbow
effect on the display.
●
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.
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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.
Watch Operation Guide 3521
2