Operation Guide 2984
Modes and Display Screens
Timekeeping Mode
Button
Day of the Week Month, Day Year 
PM indicator 
(no display 
for AM) 
Button
Button
Button
Hour, Minute, Second
(Light)
Button
Modes
•For details about each mode, see each section of this Operation Guide.
Timekeeping Mode | Stopwatch Mode |
Dual Time Mode | Recall Mode |
Alarm Mode | Timer Mode |
Illumination
An EL (electroluminescent) panel is used to illuminate the display for easy reading in the dark. An auto light turns on illumination automatically when you angle the watch towards your face for viewing.
❚To turn on illumination manually
In any mode, press the L button.
This will turn on illumination for about 1.5 seconds.
• Pressing the L button turns on illumination regardless of whether the auto light switch is on or off.
❚To turn the auto light switch on or off
The auto light switch turns on illumination for about 1.5 seconds when you angle the watch towards your face.
❚Turning on Illumination with Auto Light
With the watch on your | Rotate your arm so the watch |
wrist, position it parallel | is angled at about 40 degrees, |
with the ground. | so you can read its face. |
| 40 degrees |
| minimum |
•You should be wearing the watch on the outside of your wrist when using auto light.
•Make sure that a line running from the left side (9 o’clock) to the right side (3 o’clock) of the watch is within ±15 degrees parallel with the ground. Auto light may not operate properly if the angle is greater than 15 degrees.
Auto Light Precautions
•To conserve battery power, the auto light switch can remain on for a maximum of about six hours. After that, it will turn off automatically, and the “
” indicator will disappear from the display.
•If you want to continue using auto light, hold down the D button for about two seconds again until the “
” indicator reappears. Note, however, that frequent use of auto light can run down the battery.
•Illumination may not turn on immediately when you angle the watch towards your face. This does not indicate malfunction.
•Illumination remains turned on for about 1.5 seconds only, even if you leave the watch angled towards your face.
•Illumination may turn on unintentionally when you wear the watch on the inside of your wrist, when you shake your arm, or when you raise your arm. Be sure to turn off the auto light switch whenever you do not need illumination.
•Keep the auto light switch turned off whenever you are wearing the watch on the inside of your wrist.
•
•You may hear a faint rattling sound when you move the watch around. This sound is caused by the movement of a metal bulb that controls operation of the auto light switch, and does not indicate malfunction.
In the Timekeeping Mode, hold down the D button for about two seconds to toggle the auto light switch on or off.
An indicator is on the display while the auto light switch is turned on.
Auto light switch on indicator
Important!
•Illumination may be difficult to see under bright sunlight.
•Illumination turns off automatically if an alarm sounds, etc.
•You may notice a slight sound from the watch while illumination is turned on. This is the sound of EL panel vibration and does not indicate malfunction.
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