Casio 2709 User manual

USER’S GUIDE 2709
1
About This Manual
•Button operations are indicated using the letters shown
in the illustration.
•Each section of this manual provides you with the
information you need to perform operations in each
mode. Further details and technical information can be
found in the “Reference” section.
General Guide
•Press Cto change from mode to mode.
•In any mode, press Lto illuminate the display.
Data Memory Mode
Stopwatch Mode
Timekeeping Mode
Alarm Mode
▲ ▲
▲
Hand Setting Mode
▲
▲
Press C.
▲
World Time Mode
Timekeeping
Use the Timekeeping Mode to set and view the current time and date.
•In the Timekeeping Mode, press Dto change the screen format as shown below.
Press D.
▲
▲
Date and Time Analog Seconds
Date
Seconds and Date
▲
Seconds
Hour : Minutes
Month –Day
Day of week
PM
indicator
▲
▲
•Pressing Adisplays the Last Signal screen (date and time the time calibration
signal was last received) in the Timekeeping Mode.
Current Time Setting
This watch automatically adjusts its time setting in accordance with a time calibration
signal. You can also perform a manual procedure to set the time and date, when
necessary.
•Before using the watch in the Continental United States, first use the procedure
under “Setting Up the Watch for Use in the Continental United States”to set the time
in accordance with a time calibration signal.
•Note that after you set your Home City (the city where you normally use the watch)
code, you must also turn on the watch’s time calibration signal receiver if you want to
enable auto time calibration. See “About Auto Receive”for more information.
•See “Setting the Digital Time and Date Manually”for information about manual
settings.
•The analog time of this watch is synchronized with the digital time. Because of this,
the analog time setting is automatically adjusted whenever you change the digital
setting. See “Analog Timekeeping”for more information.
•Before using the watch in Japan, first specify your Home City, select the DST setting
you want to use, and then perform the procedure under “To perform manual time
calibration signal reception”.
Last Signal Screen
▲
Press A.
Receive date
Receive time
▲
Setting Up the Watch for Use in the Continental United States
You need to make the following three settings before using this watch in the
Continental United States. The following provides a general overview of the setting
procedure. For full details, see “Setting the Time and Date Manually”and “Time
Calibration Signal Reception”.
•Specify the city code for your Home City (the city where you will normally use the
watch).
•Select the auto summer time (DST) setting.
•Perform the manual time calibration signal receive operation to set the current time.
To set up the watch for use in the Continental United States
1. In the Timekeeping Mode, press B. This causes the
current auto receive on/off setting (the receive indicator)
to flash, which indicates the setting screen.
2. Press Ctwice to move the flashing to the city code
setting.
3. Use D(+) and A(–) to select the city code you want to
use as your Home City.
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City code
Receive indicator
GMT differential
•The following are the city codes for major cities in the
Continental United States time zones.
LAX: Los Angeles, San Francisco, Las Vegas, Seattle
DEN: Denver, El Paso
CHI: Chicago, Houston, Dallas/Fort Worth, New Orleans
NYC: New York, Detroit, Miami, Boston
4. Press Cto display the summer time (DST) setting
screen.
5. Use Dto select AUTO DST.
•AUTO DST specifies auto switching between Daylight
Saving Time and Standard Time.
6. Press Bto exit the setting screen.
•If you changed the digital time setting with the above
steps, the analog hands move at this time to match it.
Wait until the analog hands stop moving before you
advance to the next step.
7. Hold down Afor about two seconds until the watch
beeps.
•Release Aand the message receiving appears to
indicate that signal reception has started.
•Time calibration signal reception takes from two to six
minutes. Take care that you do not move the watch
during this time.
•If the watch is indoors, we recommend that you place
the watch near a window to allow better signal
reception.
•After signal reception is complete, the display of the
watch changes to the Last Signal screen, and the
analog time of the watch is adjusted automatically.
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Receive indicator
Time Calibration Signal Reception
This watch is designed to pick up a time calibration signal and update its time setting
in accordance with the signal. There are two different methods you can use to receive
the signal: Auto Receive and Manual Receive. With Auto Receive, the watch
automatically receives the calibration signal three times each day and makes
appropriate adjustments. With Manual Receive, you perform a specific button
operation to receive the calibration signal.
Before performing a signal receive operation, remove the watch from you wrist and
position it as shown in the illustrations below.
•If your watch has a resin band, pass the end of the band through the band loop and
place the watch on a stable surface.
Resin band Metal band
Pass through band loop.

USER’S GUIDE 2709
2
Note
•If you are using the time calibration signal to set the time for this watch, be sure to
correctly set your Home City. Otherwise, there is the chance that the watch will not
set the correct time.
•Note that signal reception is possible only when the watch is within range of a time
calibration signal transmitter, and a city code that supports signal reception is
selected as the Home City code.
•The current time setting in accordance with the time calibration signal takes priority
over any time settings you make.
•Auto receive is turned on when the watch is shipped from the factory.
•Time calibration signal reception is disabled while the analog hands are moving after
you change the digital time setting.
•See the information under “Time Calibration Signal Reception”if you experience
problems with time calibration signal reception.
To perform manual time calibration signal reception
1. Place the watch on a stable surface so its top (12 o'clock side) is facing in the
general direction of the signal transmitter.
•Note that signal reception is poor if the watch is on its back or side.
2. In the Timekeeping Mode, hold down Afor about two
seconds until the watch beeps.
•Release Aand the message receiving appears to
indicate that signal reception has started.
•Time calibration signal reception takes from two to six
minutes. Take care that you do not move the watch
during this time.
•After signal reception is complete, the display of the
watch changes to the Last Signal screen, and the
analog time of the watch is adjusted automatically.
•The receive indicator indicates that the calibration time
reception attempt was successful.
Receive indicator
Note
•To interrupt a receive operation and return to the Timekeeping Mode, press A.
•If the receive operation is unsuccessful, the message ERROR! appears on the
display for about one or two minutes. After that, the watch returns to the
Timekeeping Mode.
•You can also change from the Last Signal or ERROR! screen to the normal
timekeeping screen by pressing A.
About the Receive Indicator
The receive indicator shows the strength of the calibration signal being received. For best
reception, be sure to keep the watch in a location where signal strength is strongest.
Weak Strong
•Even in an area where signal strength is strong, it takes about 10 seconds for signal
reception to stabilize enough for the receive indicator to indicate signal strength.
•Use the receive indicator as a guide for checking signal strength and for finding the
best location for the watch during signal receive operations.
•The receive indicator remains on the display in all modes following reception of the
time calibration signal and calibration of the watch’s time setting. The receive
indicator does not appear if signal reception was unsuccessful or after manual
adjustment of the current time setting.
About Auto Receive
When auto receive is turned on, the watch automatically starts to receive the time
calibration signal when the digital time in the Timekeeping Mode reaches 2:00 AM,
4:00 AM and 6:00 AM each day (calibration times).
Note
•The auto receive operation is performed only if the watch is in the Timekeeping or
World Time Mode when one of the calibration times is reached.
It is not performed if a calibration time is reached while you are making settings
(while settings are flashing on the display), while an alarm is sounding, or while a
silent alert operation is being performed.
•Auto receipt of the calibration signal is designed to be performed early in the
morning, while you sleep (provided that the digital time is set correctly). Before going
to bed for the night, remove the watch from your wrist, and put it in a location where
it can easily receive the signal.
•The receive indicator indicates that either the 2:00 AM, 4:00 AM, or 6:00 AM
calibration signal reception was successful. Note, however, that the receive indicator
is cleared from the display at 3:00 AM each day.
•If you do not see the receive indicator except for the above reason, it means there
was some problem with the calibration reception operation. Either perform reception
manually, or make sure the watch is set up properly to receive the time calibration
signal for the next automatic reception time.
•When auto receive is turned on, the watch receives the calibration signal for two to
six minutes each day when the digital time reaches 2:00 AM, 4:00 AM and 6:00 AM.
Do not operate any of the watch’s buttons within six minutes prior to or following the
calibration times. Doing so can interfere with correct calibration.
•Remember that reception of the calibration signal depends on the time shown on the
digital display. The receive operation will be performed whenever the digital display
shows 2:00 AM, 4:00 AM and 6:00 AM, regardless of whether or not the displayed
time is actually the correct time.
•When two or three receptions are successful, the watch uses the data of the last
reception for calibration. When only one reception is successful, the watch uses the
data of the successful reception.
To turn auto receive on and off
1. In the Timekeeping Mode, press B. This causes the
current auto receive on/off setting (the receive indicator)
to flash, which indicates the setting screen.
2. Press Dto toggle auto receive on (ON) and off (OFF).
3. Press Bto exit the setting screen.
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To set the current digital time and date manually
1. In the Timekeeping Mode, press B. This causes the
current auto receive on/off setting (the receive indicator)
to flash, which indicates the setting screen.
2. Press Cto move the flashing in the sequence shown
below to select other settings.
Auto
Receive
Seconds
DST
Frequency 12/24-Hour
Format
City Code
Month Year Minutes Hour
Day
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ScreenSetting
Auto Receive
Frequency
City code
Button Operations
Press Dto toggle auto receive on and off.
When TYO (Tokyo) is selected as the city
code, press Dto toggle the calibration
signal reception frequency among Auto
(FREQ. AT), 40KHz (FREQ. 40) and 60KHz
(FREQ. 60). Note that frequency selection
is available for the TYO city code only.
Use D(+) and A(–) to change the
setting.
3. When the setting you want to change is flashing, use Aand/or Dto change it as
described below.
DST
12/24-Hour format
Hour, Minutes
Seconds
Month, Day, Year
Press Dto toggle between Daylight Saving
Time (ON) and standard time (OFF).
•Pressing Dperforms a different operation
when HKG, TYO, SEL, NYC, CHI, DEN,
LAX, ANC or HNL is selected as Home
City Code. See “Auto Summer Time (DST)
Switching”.
Press Dto toggle between 12-hour (12H)
and 24-hour (24H) timekeeping.
Use D(+) and A(–) to change the
setting.
Press Dto reset the seconds to 00.
Use D(+) and A(–) to change the
setting.
4. Press Bto exit the setting screen.
•The auto receive setting is used for time calibration signal reception only. See “About
Auto Receive”for details.
•See “City Code Table”for a complete list of available city codes.
•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.
Analog Timekeeping
The analog time of this watch is synchronized with the digital time. The analog time
setting is adjusted automatically whenever you change the digital time.
Note
•The hands for the analog timepiece move to adjust to a new setting whenever any of
the following occurs.
When you change the digital time setting manually
When the digital time setting is changed by time calibration signal reception
When you change the Home City code and/or DST setting
•If the analog time does not match the digital time for any reason, use the procedure
described under “To adjust the analog time”to match the analog setting to the digital
setting.
•Whenever you need to adjust both the digital and the analog time settings manually,
make sure you adjust the digital setting first.
•Depending on how much the hands have to move in order to adjust to the digital
time, it may take some time before the analog hands stop moving.
Current time
When you want to do this:
Move the hand setting
forward 20 seconds
Perform this button operation:
•Press D.
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To adjust the analog time
1. In the Timekeeping Mode, press Cfive times to enter
the Hand Setting Mode.
2. Press Band the current digital time starts to flash,
which indicates the setting screen.
3. Use D(+) and A(–) to adjust the analog setting as
described below.
Move the hand setting back
20 seconds
Move the hand setting a short
way forward at high speed
Move the hand setting a
short way back at high speed
Move the hand setting a
long way forward at high
speed
•Press A.
•Hold down D.
•Release Dwhen the hands reach the setting
you want.
•Hold down A.
•Release Awhen the hands reach the setting
you want.
•While holding down Dto move the hands at
high-speed, press Ato lock the high-speed
hand movement.
•Press any button when the hands are close to
the setting you want.
•Hand movement stops automatically if the hour
hand makes one full (12-hour) revolution.
Move the hand setting a long
way back at high speed
•While holding down Ato move the hands at
high-speed, press Dto lock the high-speed
hand movement.
•Press any button when the hands are close to
the setting you want.
•Hand movement stops automatically if the hour
hand makes one full (12-hour) revolution.
Setting the Digital Time and Date Manually
Make sure you select your Home City code (the city code whose time and date you
are setting) before change the current time and date settings. World Time Mode times
are all displayed in accordance with the Timekeeping Mode settings. Because of this,
World Time Mode times will not be correct if you do not select the proper Home City
code before setting the time and date in the Timekeeping Mode.

USER’S GUIDE 2709
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4. Press Bto exit the setting screen.
•The minute hand will be adjusted slightly to match the seconds when you exit the
setting screen.
•To return to the Timekeeping Mode, press C.
World Time
World Time shows the current time in 30 cities (29 time
zones) around the world.
•For full information on city codes, see the “City Code
Ta b l e ”.
•The current time for all city codes in the World Time
Mode is calculated in accordance with the Greenwich
Mean Time (GMT) differential for each city, based on the
your Home City time setting.
•All of the operations in this section are performed in the
World Time Mode, which you enter by pressing C.
Current time in the
selected city code
City code
GMT
differential
To view the time in another city code
While in the World Time Mode, press Dto scroll through the city codes (time zones)
to the east or Ato scroll to the west.
•If the current time shown for a city is wrong, check your Timekeeping Mode time and
Home City settings and make the necessary changes.
To toggle a city code time between standard time and Daylight Saving Time
1. In the World Time Mode, use Aand Dto display the
city code (time zone) whose standard time/Daylight
Saving Time setting you want to change.
2. Press Bto 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.
•Daylight Saving Time (DST) advances the time setting by one hour from Standard
Time. Remember that the not all countries or even local areas use Daylight Saving
Time.
•Note that you cannot use the World Time Mode to change the DST ON/OFF setting
of the Home City code you currently have selected in the Timekeeping Mode.
•The watch will perform a signal receive operation even if it is in the World Time Mode
when a calibration time is reached. If this happens, the World Time Mode time
settings will be adjusted in accordance with the Timekeeping Mode’s Home City
code time.
Alarms
The Alarm Mode gives you a choice of four one-time
alarms and one snooze alarm.You can select either an
audible beeper or flashing silent alert to let you know
when any of the alarm times is reached.
You can also input reminder text that appears when the
alarm time is reached.
Also use the Alarm Mode to turn the Hourly Time Signal
on and off.
•All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C.
Alarm time
Alarm on indicator
Alarm screen
name
Alarm name
indicator
To display Alarm Mode screen
In the Alarm Mode, use Dto cycle through the alarm screens as shown below.
•The following alarm screen names appear in the center
of the display to indicate the alarm whose screen is
currently displayed.
ALARM1 through ALARM4: One-time alarm screen
SNOOZE: Snooze alarm screen
SIGNAL: Hourly Time Signal screen
•The currently displayed alarm screen is also indicated
by the alarm name indicators along the bottom left of the
watch's display.
ALARM1 ALARM2 ALARM3 ALARM4 SNOOZE SIGNAL
Alarm1
Alarm2
Alarm3
Alarm4
Snooze
To set an alarm
1. In the Alarm Mode, use Dto select the alarm whose
time you want to set.
2. Press Band the hour setting of the alarm time starts
to flash, which indicates the setting screen.
•Pressing Aand Dat the same time resets the
alarm time to 12:00 AM, and clears the reminder text
in the upper part of the display (if there is any).
3. Press Cto move the flashing in the sequence shown
below to select other settings.
•Selecting the text causes the text input cursor to appear.You can input up to eight
characters of reminder text for each alarm.
•There are eight spaces in the text, so you have to press Ceight times to move to
the Hour setting.
MinutesHour Te x t
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4. When the setting you want to change is selected, use Aand Dto change it.
•While the hour or minute setting is flashing, use D(+) and A(–) to change it.
•When setting the alarm time using the 12-hour format, take care to set the time
correctly as a.m. (no indicator) or p.m. (Pindicator).
•When inputting text, use Aand Dto cycle through characters at the current
cursor location, and Cto move the cursor to the right. See “Inputting Text”for
more information.
5. Press Bto exit the setting screen.
•If you input reminder text, the text appears in place of the alarm screen name when
you exit the setting screen.
•If the reminder text has more than six characters, it will scroll from right to left
whenever it is displayed.
Alarm Operation
The following table describes the different types of alarm operations that this watch
can perform.
Alarm Operation
Type
Alarm off
Alarm on
Alert on
Description
•Nothing happens when the alarm
time is reached.
•The alarm on indicator and alarm
name indicator flash on the display
for 10 seconds.
•The watch beeps for 10 seconds.
•The alert on indicator and alarm
name indicator flash on the display
for 10 seconds.
•The watch does not beep.
Snooze
indicator Alert on
indicator
Alarm on indicator
•Press any button to stop the alarm after it starts to sound.
•If any alarm operation (one-time alarm, silent alert, snooze) occurs while a signal
receive operation is in progress, the receive operation is canceled.
•In the case of the snooze alarm, the alarm operation repeats up to seven times
every five minutes until the alarm is turned off.
•If you input reminder text for an alarm, the text appears for one minute in place of
the date on the Timekeeping Mode screen. The text is cleared from the Timekeeping
Mode screen if you change to another mode while it is displayed.
•Alarm operations and the Hourly Time Signal operation are performed in all modes.
To test the alarm
In the Alarm Mode, hold down Dto sound the alarm.
To select the alarm operation type
1. In the Alarm Mode, use Dto select the screen for the alarm (ALARM1 to
ALARM4, or SNOOZE) whose alarm type you want to select.
2. Press Ato cycle through the available settings in the sequence shown below.
•The alarm on indicator ( ) and alarm name indicator are displayed for each
alarm (1 through 4, snooze) for which alarm on is set. The alert on indicator
( ) and alarm name indicator are displayed for each alarm (1 through 4,
snooze) for which alert on is set.
Alarm onAlarm off Alert on
•In other modes besides the Alarm Mode, the alarm name indicator is displayed for
each alarm for which alarm on is selected.
•In all modes, the alarm on indicator or alert on indicator is shown for any alarm
(ALARM1 through ALARM4, or SNOOZE) that is currently turned on.
To turn the Hourly Time Signal on and off
1. In the Alarm Mode, use Dto select the Hourly Time
Signal (SIGNAL).
2. Press Ato toggle it on (SIG displayed) and off (SIG
not displayed).
•The Hourly Time Signal on indicator (SIG) is shown on
the display in all modes while this function is turned on.
Data Memory
You can use the watch’s data memory to store e-mail
addresses, Web page URLs, and other text data.
•All of the operations in this section are performed in the
Data Memory Mode, which you enter by pressing C.
Data Memory Records
Each data memory record can contain up to 63
characters. Records are stored in memory in the
sequence they are created.
•The number of records you can store in data memory
depends on the number of characters that make up
each record. See “Data Memory Management”for more
information.
Remaining memory
To create a new data memory record
1. In the Data Memory Mode, press Aand Dat the
same time to display the remaining memory screen.
•You do not have to perform the above step if the
remaining memory screen is already on the display.
•If REST 0% is shown for remaining memory, it means
that memory is full. To store another record, you will
first have to delete some of the records stored in
memory.
2. Press Band the flashing cursor appears on the
display, which indicates the setting screen.
3. Use Aand Dto cycle through characters at the
current cursor location, and Cto move the cursor to
the right. See “Inputting Text”for more information.
•If memory becomes full while you are inputting text,
the cursor will jump to the first (leftmost) character of
the text when you press C, instead of advancing to
the right.
Cursor
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USER’S GUIDE 2709
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4. Press Bto store your data and return to the data
memory record screen (without the cursor).
• The message SAVE! appears for about two seconds,
followed by a data memory record screen, which shows
the text you just input in the upper part of the display,
and a record number automatically assigned by the
watch in the lower part of the display.
• While the record number is in the lower part of the
display, you can see only six characters of the text in the
record.You can scroll through the text on the screen by
pressing D. See “To recall data memory records” for
more information.
Record number
Text
To recall data memory records
1. In the Data Memory Mode, press Ato scroll forward through data memory
records.
•Each press of Aadvances to the next record and shows its record number and
first six characters of its text.
•Pressing Awhile the last record in memory is on the display changes to the
remaining memory screen. Pressing Aagain displays the first record.
2. Press Dto scroll through the text on the screen.
•An end mark indicates the end of the text.
▲
▲
First six characters
Pressing Dscrolls through the text.
End mark
To edit a data memory record
1. In the Data Memory Mode, display the record you want to edit.
2. Press Band the flashing cursor appears on the display.
3. Press Cto move the flashing to the character you want to change.
4. Use Dand Ato change the character.
5. After making the changes you want, press Bto store them and return to the data
memory record screen.
To delete a data memory record
1. In the Data Memory Mode, display the record you want to delete.
2. Press Band the flashing cursor appears on the display.
3. Press Aand Dat the same time to delete the record.
•The message CLEAR! appears to indicate that the record is being deleted. After
the record is deleted, the cursor appears on the display, ready for input.
4. Input data or press Bto return to the remaining memory screen.
Hours
Seconds 1/100 second
Minutes
Stopwatch
The stopwatch lets you measure elapsed time, split
times, and two finishes.
•The display range of the stopwatch is 23 hours, 59
minutes, 59.99 seconds.
•The stopwatch continues to run, restarting from
zero after it reaches its limit, until you stop it.
•Exiting the Stopwatch Mode while a split time is
frozen on the display clears the split time and
returns to elapsed time measurement.
•The stopwatch measurement operation continues
even if you exit the Stopwatch Mode.
•All of the operations in this section are performed in
the Stopwatch Mode, which you enter by pressing
C.
To measure times with the stopwatch
D
Start Stop
Elapsed Time
➤
Re-start Clear
D➤
Stop
D➤D➤A
Split Time
D
Start Split
➤
Split release Clear
A➤
Stop
A➤D➤A
Two Finishes
D
Start Split
➤
Stop Clear
A➤
Split release
D➤A➤A
First runner
finishes.
Display time of
first runner.
Second runner
finishes.
Display time of
second runner.
(SPL displayed)
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.
Auto Return Features
•If you leave the watch in the Alarm, Data Memory, or Hand Setting Mode for two or
three minutes without performing any operation, it automatically changes to the
Timekeeping Mode.
•If you leave a screen with flashing digits or a cursor on the display for two or three
minutes without performing any operation, the watch automatically saves anything
you have input up to that point and exits the setting screen.
Data and Setting Scrolling
The Aand Dbuttons 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 through the data at high speed.
Initial Screens
When you enter the Alarm or World Time Mode, the data you were viewing when you
last exited the mode appears first.
Time Calibration Signal Reception
•This watch is designed to receive a time calibration signal originating from one of the
three transmitters listed below.
Location
Fort Collins, Colorado
Fukushima, Japan
Fukuoka/Saga, Japan
Frequency
60kHz
40kHz
60kHz
Call Sign
WWVB
JJY
JJY
•When you select one of the city codes shown below as your Home City code, the
watch sets up automatically to receive from the applicable transmitter. Time
calibration signal reception is not possible whenever any other city code is specified
as the Home City code.
•When you select TYO as your Home City code, the watch automatically selects
either the Fukushima signal (40kHz) or the Fukuoka/Saga signal (60kHz),
depending on which is stronger.
•Note that when TYO (Japan) is selected as the Home City code, you can specify one
of two different time signal transmitters.
Home City Code
LAX, DEN, CHI, NYC
TYO
Received Transmitter
Fort Collins, Colorado
Fukushima or Fukuoka/Saga, Japan
(selectable)
•Signal reception is possible within a radius of about 2,000 miles (3,000 kilometers)
from the Fort Collins transmitter.
•At distances further than about 500 kilometers from the Fukushima and Fukuoka/
Saga transmitter, the signal may become weak and reception may be impossible
under certain conditions.
Fort Collins
2,000 miles
1,200 miles
1,000
kilometers
1,000
kilometers
Fukuoka/Saga
500
kilometers
Fukushima
500
kilometers
General Precautions
•The watch is designed to automatically update the date and day of the week for the
period January 1, 2000 to December 31, 2039. Setting of the date by the time
calibration signal cannot be performed starting from January 1, 2040.
•This watch can receive signals that differentiate between leap years and non-leap
years.
•Even when the watch is within the reception range of the transmitter, signal
reception is impossible if the signal is blocked by mountains or other geological
formations between the watch and signal source.
•Signal reception is affected by weather, atmospheric conditions, and seasonal
changes.
•The time calibration signal is bounced off the ionosphere. Because of this, such
factors as changes in the reflectivity of the ionosphere, as well as movement of the
ionosphere to higher altitudes due to seasonal atmospheric changes or the time of
day may change the reception range of the signal and make reception temporarily
impossible.
•Reception is best when the antenna built into the 12 o'clock edge of the watch is
facing in the general direction of the signal transmitter. Note, however, that moving
the watch while the time calibration signal receive operation is taking place will make
stable reception impossible.
•Think of the watch as acting like a TV or radio when it is receiving the calibration
signal. Place the watch near a window in a location where there are no nearby
metal objects.
•Proper signal reception can be difficult or even impossible under the conditions
listed below.
Inside or
among
buildings
Inside a
vehicle
Near
household
appliances
or office
equipment
Near a
construction
site, airport, or
other sources of
electrical noise
Near high-
tension power
lines
Among or
behind
mountains
•Do not move the watch or operate any of its buttons while signal reception is being
performed.
•This watch automatically receives a time calibration signal in the middle of the night,
when reception is best.
•Radio interference can make signal reception impossible.
•Strong electrostatic charge can result in the wrong time being set.
•If you are in an area where proper time calibration signal reception is impossible, the
watch keeps time within ±15 seconds a month at normal temperature.
Troubleshooting
Check the following points whenever you experience problems with your watch.
Problem
Cannot perform
manual receive.
Auto receive is
turned on, but
the receive
indicator does
not appear on
the display.
Time setting is
incorrect
following signal
reception.
Probable Cause
The watch is not in the Timekeeping Mode.
•You changed the time setting manually.
•The watch was not in the Timekeeping
or World Time Mode, or you were
performing some button operation
during the auto signal receive operation
was performed.
• Even if receive is successful, the receive
indicator disappears every day at 3am.
• If the time is one hour off, the DST setting
may be incorrect.
•The Home City Code setting is not
correct for the area where you are using
the watch.
What you should do
Enter the Timekeeping Mode
and try again.
•Perform manual signal receive
or wait until the next auto
signal receive operation is
performed.
•Check to make sure the watch
is in a location where it can
receive the signal.
• Put the watch in a location
that is suitable for good
reception.
•Change the DST setting to
AUTO DST.
•Select the correct Home City
Code.

USER’S GUIDE 2709
5
Auto Summer Time (DST) Switching
The time calibration signal transmitted from Fort Collins, Colorado includes both
standard time and summer time (Daylight Saving Time) data. When auto summer time
(DST) switching is turned on, the watch switches between standard time and summer
time (DST) automatically in accordance with the Fort Collins signal.
•Daylight Saving Time (DST) advances the time setting by one hour from Standard
Time. Remember that not all countries or even local areas use Daylight Saving Time.
•The time calibration signals transmitted from the Fukushima and Fukuoka/Saga do
not include summer time data.
•When using the watch in the Continental United States or in Japan, select AUTO
DST for the auto summer time setting.
•The default auto summer time settings is AUTO DST whenever you select one of the
following city codes as your Home City code: HKG, TYO, SEL, NYC, CHI, DEN,
LAX, ANC, or HNL.
•If you experience problems receiving the time calibration signal in your area, it is
probably best to turn off auto time switching.
To select the auto summer time setting
1. In the Timekeeping Mode, press B. This causes the current auto receive on/off
setting (the receive indicator) to flash, which indicates the setting screen.
2. Press Cthree times until the summer time (DST) setting screen appears.
3. Use Dto cycle through the summer time settings in the sequence shown below.
4. When the setting you want is selected, press Bto exit the setting screen.
Timekeeping
•The day of the week is automatically displayed in accordance with the date (year,
month, and day) settings.
•The year can be set in the range of 2000 to 2039.
•The watch’s built-in full automatic calendar automatically 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.
•The current time for all city codes in the Timekeeping Mode is calculated in
accordance with the Greenwich Mean Time (GMT) differential for each city, based
on the your Home City time setting.
•GMT differential is calculated by this watch based on Universal Time Coordinated
(UTC*) data.
*
The letters “UTC”stands for “Universal Time Coordinated,”which is the world-wide
scientific standard of timekeeping. It is based upon carefully maintained atomic
(cesium) clocks that keep accurate to within microseconds. Leap seconds are
added or subtracted as necessary to keep UTC in sync with the Earth’s rotation.
The reference point for UTC is Greenwich, England.
12-hour/24-hour Timekeeping Formats
The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is also
applied in all other modes.
•With the 12-hour format, the P(PM) indicator appears on the display for times in the
range of noon to 11:59 p.m. and the no indicator appears for times in the range of
midnight to 11:59 a.m.
•With the 24-hour format, times are displayed in the range of 0:00 to 23:59, with 24
indicator.
(space)
*to +
(symbol)
ato z
(lower-case)
(Japanese)
0to 9
(number)
Ato Z
(upper-case)
to
Inputting Text
The following describes how to input text in the Alarm and Data Memory Modes.
To input characters
1. When the cursor is on the display, use Aand Dto
cycle through the available letters, numbers and
symbols, in the sequence shown below.
•You can input Japanese phonetic characters (katakana), alpha characters, symbols,
and numbers in the text area. For a complete list of characters you can input, see
the “Character List”.
2. When the character you want is at the cursor position, press Cto move the cursor
to the right.
3. Repeat steps 1 and 2 to input the rest of the characters you want.
Data Memory Management
Data memory can hold up to 315 characters total, while each record can contain up to
63 characters. This means that 40 records can be stored in data memory when each
record contains seven characters of text or less.
l
l
l
l
l
l
l
l
l
Press D.Press A.
Reminder Text Input
Screen
Cursor
Backlight Precautions
The backlight uses an EL (electro-luminescent) panel that causes the entire display to
glow for easy reading in the dark.
In any mode, press Lto illuminate the display for about one second.
•The electro-luminescent panel that provides illumination loses power after very long
use.
•The illumination provided by the backlight 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.
•The backlight automatically turns off whenever an alarm sounds.
•Frequent use of the backlight shortens the battery life.
HONOLULU
ANCHORAGE
LOS ANGELES
DENVER
CHICAGO
NEW YORK
CARACAS
RIO DE JANEIRO
LONDON
PARIS
BERLIN
City City GMT Other major cities in same time zone
Code Differential
–––
HNL
ANC
LAX
DEN
CHI
NYC
CCS
RIO
–––
–––
GMT
LON
PAR
BER
–11
–10
–9
–8
–7
–6
–5
–4
–3
–2
–1
+00
+01
PAGO PAGO
PAPEETE
NOME
SAN FRANCISCO, LAS VEGAS, VANCOUVER,
SEATTLE, DAWSON CITY
EL PASO, EDMONTON
HOUSTON, DALLAS/FORT WORTH,
NEW ORLEANS, MEXICO CITY, WINNIPEG
MONTREAL, DETROIT, MIAMI, BOSTON,
PANAMA CITY, HAVANA, LIMA, BOGOTA
LA PAZ, SANTIAGO, PORT OF SPAIN
SAO PAULO, BUENOS AIRES, BRASILIA,
MONTEVIDEO
PRAIA
DUBLIN, LISBON, CASABLANCA, DAKAR,
ABIDJAN
MILAN, ROME, MADRID, AMSTERDAM, ALGIERS,
HAMBURG, FRANKFURT, VIENNA, STOCKHOLM
ATHENS
CAIRO
JERUSALEM
JEDDAH
TEHRAN
DUBAI
KABUL
KARACHI
DELHI
DHAKA
YANGON
BANGKOK
HONG KONG
TOKYO
SEOUL
ADELAIDE
SYDNEY
NOUMEA
WELLINGTON
+02
+03
+3.5
+04
+4.5
+05
+5.5
+06
+6.5
+07
+08
+09
+9.5
+10
+11
+12
HELSINKI, ISTANBUL, BEIRUT, DAMASCUS,
CAPE TOWN
KUWAIT, RIYADH, ADEN, ADDIS ABABA, NAIROBI,
MOSCOW
SHIRAZ
ABU DHABI, MUSCAT
MALE
MUMBAI, KOLKATA
COLOMBO
JAKARTA, PHNOM PENH, HANOI, VIENTIANE
SINGAPORE, KUALA LUMPUR, BEIJING, TAIPEI,
MANILA, PERTH, ULAANBAATAR
PYONGYANG
DARWIN
MELBOURNE, GUAM, RABAUL
PORT VILA
CHRISTCHURCH, NADI, NAURU ISLAND
ATH
CAI
JRS
JED
THR
DXB
KBL
KHI
DEL
DAC
RGN
BKK
HKG
TYO
SEL
ADL
SYD
NOU
WLG
•Based on data as of June 2002.
(space)
a
b
c
d
e
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
*
–
–
@
~
/
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
**
**
*
-
_
@
/
?
#
!
%
.
:
,
,
&
#
!
%
.
:
,
,
&
=
–
+
A
B
C
D
=
d
X
-
+
A
B
C
D
E
F
G
H
I
J
K
L
M
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
0
1
2
3
4
W
X
Y
Z
0
1
2
3
4
5
6
7
8
9
5
6
7
8
9
City Code Table
Character List