Viewing the Face in the Dark
The watch has a light that illuminates the face
for viewing in the dark.
●
To illuminate the face manually
Press (B) to turn on illumination.
●
Illumination will turn off automatically if an
alarm starts to sound.
●
To illuminate the face when Auto Light
is enabled
If Auto Light is enabled, face illumination will
turn on automatically whenever the watch is
positioned at an angle of 40 degrees or more.
40
degrees
or more
Important!
●
Auto Light may not operate properly
when the watch is at a horizontal angle
of 15 degrees or greater from
horizontal as shown in the illustration
below.
●
Auto Light may operate unintentionally
and run down the battery if the watch
is blocked from light by your sleeve.
●
Electro-static charge or magnetism
can interfere with proper auto light
operation. If this happens, try lowering
your arm and then angle it towards
your face again.
●
When moving the watch you may note
a slight rattling sound. This is due to
operation of the auto light switch,
which determines the current
orientation of the watch. It does not
indicate malfunction.
Note
●
Auto Light is disabled when any one of
the conditions below exists.
ー
Alarm, timer alert, or other beeper
sounding
●
Configuring the Auto Light Setting
1.
Enter the Timekeeping Mode.
l
Navigating Between Modes
2.
Hold down (B) for at least three seconds
to toggle Auto Light between enabled and
disabled.
●
[LT] is displayed while Auto Light is
enabled.
On
Note
●
Auto Light is disabled while [CHG] is
shown on the display.
●
Specifying the Illumination Duration
You can select either 1.5 seconds or three
seconds as the illumination duration.
1.
Enter the Timekeeping Mode.
l
Navigating Between Modes
2.
Hold down (A) for at least two seconds.
Release the button when [ADJ] appears
on the display.
Releasing the button will cause the city
code and city name to appear on the
display.
City code
City name
3.
Press (C) 10 times.
This will cause [LT1] or [LT3] to appear on
the display.
4.
Press (D) to toggle between the two
illumination duration settings.
[LT1]: 1.5-second illumination
[LT3]: 3-second illumination
5.
Press (A) to complete the setting
operation.
Watch Operation Guide 5550
8