Setting The Time; Illuminating The Display - Casio 3423 Operation Manual

Setting the Time

1. Hold down C for about two
seconds.
[Set Hold] will appear and
"hours" will flash.
a. Hours
b. Minutes
c. Seconds
Time Setting:
Each press of B moves
the flashing in the
following sequence:
"hour", "minute", "second".
Use D and A to change
the setting of the flashing
item.
2. Press C to end setting.
3. Press B twice to return to the
Timekeeping Mode.
Note
Setting "0H00'00"" can set a
100-hour countdown timer.
Operation Guide 3423
Using the Timer
a. Hours
b. Minutes
c. Seconds
d. 1/10 seconds
1. Use the button operations below to
perform a countdown.
D Start
Timer starts.
D Stop
Timer stops.
D Resume
Timer resumes.
Time up (00:00)
Alert by beep or vibration.
To discontinue a timer operation part
way through,press D to stop it and then
press A to reset to the timer start time.
To stop a beep or vibration alert
operation, press any button or double-
tap the center of the watch's display.
2. Press B twice to return to the
Timekeeping Mode.
Display Illunmiation
A simple operation illuminates
the display of the watch for easy
reading in the dark. You can also
enable an Auto Light feature that
illuminates the display whenever
you angle the watch towards
your face for viewing.

Illuminating the Display

Press L in any mode to
illumninate the display.
Supplement
The display illumination will
turn off automatically if an
alarm alert, incoming call
alert, or any alert operation
starts while it is on.
Changing the Illumination
Duration
The illumination duration can be
set to two types: 1.5 seconds
and three seconds.
1. Press B to switch to the
Timekeeping Mode.
See: Mode Switching