Seiko 6R24 User Manual download pdf (Page 78)

TO PRESERVE THE QUALITY OF YOUR WATCH

Lumibrite

If your watch has Lumibrite

Lumibrite is a luminous paint that is completely harmless to human beings and natural environment, containing no noxious

materials such as radioactive substance.

Lumibrite is a newly-developed luminous paint that absorbs the 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, 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 diﬀ er 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.

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

ﬂ uorescent 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

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Seiko 6R24 User Manual Page 78