Seiko SRPH77 Owner Manual - Page 10

Magnetic resistant performance

Page 10 highlights

Lumibrite 2 If your watch has Lumibrite Lumibrite is a luminous paint that absorbs the light energy of sunlight and lighting apparatuses in a short TO PRESERVE THE QUALITY OF YOUR WATCH 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, that, as 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 coming from a place that is bright to a place that is dark, it takes human eyes some time to adapt to the darkness making it difficult to see objects initially. (Dark adaptation) * Lumibrite is luminous paint that stores and emits light, which is harmless to human beings and the environment, containing no toxic materials such as radioactive substances. Condition Illumination Sunlight Fine weather Cloudy weather 100,000 lux 10,000 lux Indoor (Window-side during daytime) Fine weather Cloudy weather Rainy weather More than 3,000 lux 1,000 to 3,000 lux Less than 1,000 lux Lighting apparatus (40-watt daylight fluorescent light) Distance to the watch: 1 m Distance to the watch: 3 m Distance to the watch: 4 m 1,000 lux 500 lux (Average room luminance) 250 lux EN 33 Examples of common magnetic products that may affect watches 2 Smartphone, cellular phone, tablet terminal (Speaker, magnet of cover) AC adapter Bag (With magnet buckle) TO PRESERVE THE QUALITY OF YOUR WATCH AC-powered shaver Magnetic cooking device Portable radio (Speaker) Magnetic necklace Magnetic health pillow EN 35 Magnetic resistant performance Affected by nearby magnetism, a watch may temporarily gain or lose time or stop operating. 2 TO PRESERVE THE QUALITY OF YOUR WATCH Diver's watches feature magnetic resistant performance which is equivalent to or above JIS Class 1. b DANGER Indication on the case back Condition of use No indication Keep the watch more than 5 cm away from magnetic products. (JIS level-1 standard) Keep the watch more than 1 cm away from magnetic products. (JIS level-2 standard) If the watch becomes magnetized and its accuracy deteriorates to an extent exceeding the specified rate under normal use, the watch needs 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 a watch is affected by magnetism The built-in balance spring may be influenced by a strong external magnetic field. EN 34 Band The band touches the skin directly and becomes dirty with sweat or dust. Therefore, lack of care may accelerate deterioration of the band or cause skin irritation or stain on the sleeve edge. 2 The watch requires a lot of attention for long usage. ● Metallic band • Moisture, sweat or soil will cause rust even on a stainless steel band if they are left for a long time. • Lack of care may result in a rash or cause a yellowish or gold stain on the lower sleeve edge of shirts. • Wipe off moisture, sweat or soil with a soft cloth as soon as possible. • To clean the soil around the joint gaps of the band, wipe it out in water and then brush it off with a soft toothbrush. (Protect the watch body from water splashes by wrapping it up in plastic wrap etc.) Clean it off with a soft cloth. • Because some titan bands use pins made of stainless steel, which has outstanding strength, rust may form in the stainless steel parts. • If rust advances, pins may poke out or drop out, and the watch case may fall off the band, or the clasp may not open. • If a pin is poking out, personal injury may result. In such a case, refrain from using the watch and request repair. TO PRESERVE THE QUALITY OF YOUR WATCH EN 36

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Lumibrite
If your watch has Lumibrite
Lumibrite is a luminous paint that absorbs the light energy of sunlight and lighting apparatuses 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, that, as 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 coming from a place that is bright to a place that is dark, it takes human eyes some time to adapt
to the darkness making it difficult to see objects initially. (Dark adaptation)
*
Lumibrite is luminous paint that stores and emits light, which is harmless to human beings and the environment,
containing no toxic materials such as radioactive substances.
<Brightness levels>
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
EN
33
2
TO PRESERVE THE QUALITY OF YOUR WATCH
Magnetic resistant performance
Affected by nearby magnetism,
a watch may temporarily gain or lose time or stop operating.
Diver’s watches feature magnetic resistant performance which is equivalent to or above JIS Class 1.
b
DANGER
Indication on the case back
Condition of use
No indication
Keep the watch more than 5 cm away from magnetic products.
(JIS level-1 standard)
Keep the watch more than 1 cm away from magnetic products.
(JIS level-2 standard)
If the watch becomes magnetized and its accuracy deteriorates to an extent exceeding the specified rate
under normal use, the watch needs 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 a watch is affected by magnetism
The built-in balance spring may be influenced by a strong external magnetic field.
EN
34
2
TO PRESERVE THE QUALITY OF YOUR WATCH
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
EN
35
2
TO PRESERVE THE QUALITY OF YOUR WATCH
Band
The band touches the skin directly and becomes dirty with sweat or dust. Therefore, lack of care
may accelerate deterioration of the band or cause skin irritation or stain on the sleeve edge.
The watch requires a lot of attention for long usage.
Metallic band
Moisture, sweat or soil will cause rust even on a stainless steel band if they are left for a long time.
Lack of care may result in a rash or cause a yellowish or gold stain on the lower sleeve edge of shirts.
Wipe off moisture, sweat or soil with a soft cloth as soon as possible.
To clean the soil around the joint gaps of the band, wipe it out in water and then brush it off with a soft
toothbrush.
(Protect the watch body from water splashes by wrapping it up in plastic wrap etc.)
Clean it off with a soft cloth.
Because some titan bands use pins made of stainless steel, which has outstanding strength, rust may
form in the stainless steel parts.
If rust advances, pins may poke out or drop out, and the watch case may fall off the band, or the clasp
may not open.
If a pin is poking out, personal injury may result. In such a case, refrain from using the watch and request
repair.
EN
36
2
TO PRESERVE THE QUALITY OF YOUR WATCH