Magnetic Resistance (Magnetic Influence); Lumibrite - Seiko Cal. 9S85 Operating Instructions Manual

Magnetic resistance (Magnetic influence)

Affected by nearby magnetism, a watch may temporarily gain or lose time or stop operating.
Indication on the case back
No indication
Keep the watch more than 5
c m a w a y f r o m m a g n e t i c
products.
Keep the watch more than 1
c m a w a y f r o m m a g n e t i c
products.
MAGNETIC RESISTANT The watch can maintain its performance in
most cases where it is brought close to (at
40000A/m
least 1cm spaced from) magnetic products
MAGNETIC RESISTANT
not only in normal daily life circumstances
80000A/m but also in a special work environments.
A/m (ampere meter) is the International unit (SI unit) for indicating the magnetic field.
Examples of common magnetic products that may affect watches
Cellular phone AC adapter
(speaker)
Magnetic cooking Portable radio
device (speaker)
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.
The reason why watch is affected by magnetism.
The built-in balance spring is provided with a magnet, which may be influenced
by a strong external magnetic field.
38
Condition of use Certified level
4,800A/m
16,000A/m
40,000A/m
80,000A/m
Bag AC-powered
(with magnet buckle) shaver
Magnetic Magnetic
necklace health pillow

Lumibrite

If your watch has Lumibrite
Lumibrite is a luminous paint that is completely harmless to human
beings and the natural environment; containing no noxious materials
such as radioactive substance. 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)
<Reference data on the luminance>
Condition
Fine weather
Sunlight
Cloudy weather
Fine weather
Indoor
(Window-side during Cloudy weather
daytime)
Rainy weather
Distance to the watch: 1 m 1,000 lux
Lighting apparatus
(40-watt daylight Distance to the watch: 3 m 500 lux (average room luminance)
fluorescent light)
Distance to the watch: 4 m 250 lux
Illumination
100,000 lux
10,000 lux
more than 3,000 lux
1,000 to 3,000 lux
less than 1,000 lux
39