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Casio 3517 - Illumination; To turn on illumination; Illumination Precautions

Casio 3517
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EN-24
Illumination
The face of the watch is illuminated for easy reading in
the dark.
To turn on illumination
In any mode (except when a setting mode, with flashing
digits is on the display), press L to illuminate the display.
Illumination Precautions
Illumination may be hard to see when viewed under
direct sunlight.
Illumination turns off automatically whenever an alarm
sounds.
Frequent use of illumination runs down the battery.

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