Seiko 1E20 - Lumibrite

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 sub-
stance.
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differ
slightlydependingonsuchfactorsasthebrightnessoftheplacewherethe watchisex-
posedtolightandthedistancefromthelightsourcetothewatch.
<Referencedataontheluminance>
(A)Sunlight
[Fineweather]:100,000lux [Cloudyweather]:10,000lux
(B)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
(C)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
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〒 100-0005 東京都千代田区丸の内3-1-1国際ビル
〒
550-0013 大阪市西区新町1-4-24大阪四ﾂ橋新町ビルディング
本社 〒 105-8467 東京都港区芝浦1-2-1
http://www.seiko-watch.co.jp/
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