Magnetic resistance (Magnetic influence)
Affected by nearby magnetism, a watch may temporarily gain or lose time or stop operating.
Indication on the case
back
Conditions of use
Certified level
No indication
* For diver’s model
Keep the watch more than 5 cm away
from magnetic products.
4,800 A/m
Keep the watch more than 1 cm away
from magnetic products.
16,000 A/m
MAGNETIC RESISTANT
40000A/m
The watch can maintain its
performance in most cases where it is
brought close to (at least 1 cm spaced
from) magnetic products not only in
normal daily life circumstances but
also in a special work environment.
40,000 A/m
* A/m (ampere meter) is the international unit (SI unit) for indicating the magnetic field.
If the watch becomes magnetized and its accuracy deteriorates to an extent exceeding the specified
rate under normal use, the watch may need to be demagnetized. In this case, you will be charged
for demagnetization and accuracy readjustment even if it happens within the guarantee period.
Examples of common magnetic products that may affect watches
Smartphone, cellular phone, tablet terminal
(speaker, magnet of cover)
AC adapter
Bag
(with magnet
buckle)
AC-powered
shaver
Magnetic
cooking device
Portable radio
(speaker)
Magnetic
necklace
Magnetic health
pillow
The reason why analogue quartz watch is affected by magnetism
It is because the built-in motor of the watch, which, harnesses magnetic power and external strong
magnetism, affect each other to stop the motor or suppresses the turn of the motor.
38
TO PRESERVE THE QUALITY OF YOUR WATCH
Lumibrite
If your watch has Lumibrite
Lumibrite is a newly-developed luminous paint that absorbs light energy of the sunlight and lighting
apparatus in a short time and stores it to emit light in the dark. For example, if exposed to a light of more
than 500 lux for approximately 10 minutes, Lumibrite can emit light for 3 to 5 hours. Please note, however,
Lumibrite emits the light it stores, the luminance level of the light decreases gradually over time. The
duration of the emitted light may also differ slightly depending on such factors as the brightness of the
place where the watch is exposed to light and the distance from the light source to the watch.
* In general, when you enter a dark place from a bright environment, your eye cannot adapt to the change
in light levels quickly. At first, you can hardly see anything, but as time passes, your vision gradually
improves. (Dark adaptation of the human eye)
* Lumibrite is a luminous paint that is completely harmless to human beings and the natural environment;
containing no noxious materials such as radioactive substance.
Reference data on the luminance
Condition
Illumination
Sunlight
Fine weather
100,000 lux
Cloudy weather
10,000 lux
Indoor (Window-side
during daytime)
Fine weather
more than 3,000 lux
Cloudy weather
1,000 to 3,000 lux
Rainy weather
less than 1,000 lux
Lighting apparatus
(40-watt daylight
fluorescent light)
Distance to the watch: 1 m 1,000 lux
Distance to the watch: 3 m 500 lux (average room luminance)
Distance to the watch: 4 m 250 lux
Troubleshooting
Troubles
Possible Causes
Solutions
The watch stops
operating.
The battery runs down.
Consult the retailer from whom the watch
was purchased.
The watch
temporarily loses/
gains time.
The watch has been left in extremely high
or low temperatures for a long time.
Normal accuracy will resume when the
watch returns to normal temperature.
Readjust the time.
The watch was brought into close contact
with a magnetic object.
By distancing magnetism, accuracy is
recovered. Readjust the time.
If accuracy is not recovered, consult the
retailer from whom the watch was
purchased.
The watch was dropped, worn while
playing active sports, hit against hard
surfaces, or exposed to strong vibrations.
Readjust the time. If accuracy is not
recovered, consult the retailer from whom
the watch was purchased.
The seconds hand
moves at two-
second intervals.
The battery nears its end.
Consult the retailer from whom the watch
was purchased.
The date changes
during daytime.
A.m./p.m. is not correctly set.
Advance the hour hand for 12 hours and
reset the time and date.
Blur in the display
persists.
Small amount of water has got inside the
watch due to deterioration of the gasket,
etc.
Consult the retailer from whom the watch
was purchased.
* For the solution of troubles other than above, contact the retailer from whom the watch was
purchased.
39
TO PRESERVE THE QUALITY OF YOUR WATCH
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