3
Operation Guide 2991
To toggle a city code time between Standard Time and Daylight Saving Time
1. In the World Time Mode, use
D
to display the city code
(time zone) whose Standard Time/Daylight Saving Time
setting you want to change.
2. Hold down
A
for about one second to toggle Daylight
Saving Time (
DST
displayed) and Standard Time (
DST
not displayed).
•
The
DST
indicator is on the display whenever you
display a city code for which Daylight Saving Time is
turned on.
•
Note that the DST/Standard Time setting affects only the
currently displayed city code. Other city codes are not
affected.
Alarm
When the Daily Alarm is turned on, the alarm sounds for
10 seconds at the preset time each day. When the Hourly
Time Signal is turned on, the watch beeps every hour on
the hour.
•
All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing
C
.
To set the alarm time
1. Hold down
A
while in the Alarm Mode until the hour
digits start to flash on the display. The hour digits flash
because they are selected.
•
This operation automatically turns on the alarm.
DST indicator
Hourly time signal
on indicator
Current time
Alarm on indicator
Alarm time (Hour : Minutes)
2. Press
C
to change the selection in the following sequence.
Hour
Minutes
3. While a setting is flashing, use
D
and
B
to change it as described below.
4. After you set the alarm time, press
A
to return to the Alarm Mode.
To stop the alarm
Press any button to stop the alarm after it starts to sound.
To switch the Daily Alarm and Hourly Time Signal on and off
Press
D
while in the Alarm Mode to change the status of the Daily Alarm and Hourly
Time Signal in the following sequence.
Hourly Time
Signal only
Daily Alarm
only
Both off
Both on
To test the alarm
Hold down
D
while in the Alarm Mode to sound the alarm.
Screen
12:00
To do this:
Change the hour and minutes
Do this:
Use
D
(+) and
B
(–).
•
With the 12-hour format, set the time
correctly as a.m. or p.m. (
P
indicator).
Illumination
This watch has an EL (electro-luminescent) panel that
causes the entire display to glow for easy reading in the
dark. The watch’s auto light switch turns on illumination
automatically when you angle the watch for reading
towards your face.
•
The auto light switch must be turned on (indicated by
the auto light switch indicator) for it to operate.
•
See “Illumination Precautions” for more important
information.
Warning!
•
Always make sure you are in a safe place whenever you are reading the watch
using the auto light switch. Be especially careful when running or engaged in
any other activity that can result in accident or injury. Also take care that
sudden illumination by the auto light switch does not startle or distract others
around you.
•
When you are wearing the watch, make sure that its auto light switch is turned
off before riding on a bicycle or operating a motorcycle or any other motor
vehicle. Sudden and unintended operation of the auto light switch can create
a distraction, which can result in a traffic accident and serious personal injury.
To turn the auto light switch on and off
In the Timekeeping Mode, hold down
B
for about three seconds to toggle the auto
light switch on (auto light switch indicator displayed) or off (auto light switch indicator
not displayed).
•
The auto light switch indicator is on the display in all modes while the auto light
switch is turned on.
•
In order to protect against running down the battery, the auto light switch turns off
automatically approximately six hours after you turn it on.
Reference
This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.
Button Operation Tone
The button operation tone sounds any time you press one
of the watch’s buttons. You can turn the button operation
tone on or off as desired.
•
Even if you turn off the button operation tone, the
alarms, the Hourly Time Signal, the countdown alarm,
and the event timer alarm all operate normally.
To turn the button operation tone on and off
In any mode (except when a setting screen is on the
display), hold down
C
to toggle the button operation tone
on ( not displayed) and off ( displayed).
•
Holding down
C
to turn the button operation tone on or off also causes the watch’s
current mode to change.
•
is displayed in all modes when the button operation tone is turned off.
Scrolling
The
B
and
D
buttons are used in various modes and setting screens to scroll
through data on the display. In most cases, holding down these buttons during a scroll
operation scrolls at high speed. This is true except when the countdown number is
flashing on the Countdown Timer Mode screen.
Auto Return Features
•
If you leave the watch in the Alarm Mode for two or three minutes without performing
any operation, it changes to the Timekeeping Mode automatically.
•
If you leave a screen with flashing digits on the display for two or three minutes
without performing any operation, the watch exits the setting screen automatically.
Timekeeping
•
Resetting the seconds to
00
while the current count is in the range of 30 to 59
causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are
reset to
00
without changing the minutes.
•
The year can be set in the range of 2000 to 2099.
•
The watch’s built-in full automatic calendar makes allowances for different month
lengths and leap years. Once you set the date, there should be no reason to change
it except after you have the watch’s battery replaced.
World Time
•
The seconds count of the World Time is synchronized with the seconds count of the
Timekeeping Mode.
•
All World Time Mode times are calculated from the current Home City time in the
Timekeeping Mode using UTC time differential values.
•
The UTC differential is a value that indicates the time difference between a
reference point in Greenwich, England and the time zone where a city is located.
•
The letters “UTC” is the abbreviation for “Universal Time Coordinated”, which is the
world-wide scientific standard of timekeeping. It is based upon carefully maintained
atomic (cesium) clocks that keep time accurately to within microseconds. Leap
seconds are added or subtracted as necessary to keep UTC in sync with the Earth’s
rotation.
Illumination Precautions
•
The electro-luminescent panel that provides illumination loses power after very long
use.
•
Illumination may be hard to see when viewed under direct sunlight.
•
The watch may emit an audible sound whenever the display is illuminated. This is
due to vibration of the EL panel used for illumination, and does not indicate
malfunction.
•
Illumination turns off automatically whenever an alarm sounds.
•
Frequent use of illumination runs down the battery.
Auto light switch precautions
•
Avoid wearing the watch on the inside of your wrist. Doing so causes the auto light
switch to operate when it is not needed, which shortens battery life. If you want to
wear the watch on the inside of your wrist, turn off the auto light switch feature.
•
Illumination may not turn on if the face of the watch is
more than 15 degrees above or below parallel. Make
sure that the back of your hand is parallel to the ground.
•
Illumination turns off in about one seconds, even if you
keep the watch pointed towards your face.
•
Static electricity or magnetic force can interfere with
proper operation of the auto light switch. If illumination
does not turn on, try moving the watch back to the
starting position (parallel with the ground) and then tilt it
back towards you again. If this does not work, drop your
arm all the way down so it hangs at your side, and then
bring it back up again.
•
Under certain conditions, illumination may not turn on until about one second after
you turn the face of the watch towards you. This does not necessarily indicate
malfunction of the auto light switch.
•
You may notice a very faint clicking sound coming from the watch when it is shaken
back and forth. This sound is caused by mechanical operation of the auto light
switch, and does not indicate a problem with the watch.
Auto light switch indicator
To illuminate the display
In any mode, press
B
to turn on illumination.
•
The above operation turns on illumination regardless of the current auto light switch
setting.
About the Auto Light Switch
While the auto light switch is enabled, illumination turns on whenever you position
your wrist as described below in any mode.
Moving the watch to a position that is parallel to the ground and then tilting it
towards you at more than 40 degrees causes illumination to turn on.
•
Wear the watch on the outside of your wrist.
Parallel to ground
More than 40
°
