Lumibrite; Troubleshooting - Seiko Heritage Ladies STGF385 Operating Instructions Manual

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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
Cloudy weather
(Window-side during daytime)
Rainy weather
Distance to the
watch: 1 m
Lighting apparatus
Distance to the
(40-watt daylight fluorescent
watch: 3 m
light)
Distance to the
watch: 4 m
34
TO PRESERVE THE QUALITY OF YOUR WATCH
Illumination
100,000 lux
10,000 lux
more than 3,000 lux
1,000 to 3,000 lux
less than 1,000 lux
1,000 lux
500 lux
(average room luminance)
250 lux

Troubleshooting

Troubles
Possible Causes
The watch stops
Consult the retailer from whom the
The battery runs down.
operating.
watch was purchased.
The watch has been left in
Normal accuracy will resume
e x t r e m e l y h i g h o r l o w
when the watch returns to normal
temperatures for a long time.
temperature. Readjust the time.
By distancing magnetism, accuracy is
The watch was brought
recovered. Readjust the time. If
The watch
into close contact with a
accuracy is not recovered, consult the
temporarily gains/
magnetic object.
retailer from whom the watch was
loses time.
purchased.
The watch was dropped, worn
Readjust the time. If accuracy is
while playing active sports, hit
not recovered, consult the retailer
against hard surfaces, or
f r o m w h o m t h e w a t c h w a s
exposed to strong vibrations.
purchased.
The seconds hand
Consult the retailer from whom
moves at two-second
The battery nears its end.
the watch was purchased.
intervals.
The date changes
A.m./p.m. is not correctly
Advance the hour hand for 12 hours
during daytime.
set.
and reset the time and date.
Small amount of water has got
Blur in the display
Consult the retailer from whom
i n s i d e t h e w a t c h d u e t o
persists.
the watch was purchased.
deterioration of the gasket, etc.
※ For the solution of troubles other than above, contact the retailer from whom the watch
was purchased.
TO PRESERVE THE QUALITY OF YOUR WATCH
Solutions
35

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