Casio 3518 - Specifying Illumination Duration

EN-42
To specify the illumination duration
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. While the seconds are flashing, press B to toggle
the illumination duration between 1.5seconds (
) and
3seconds (
).
3. Press A twice to exit the setting screen.