Casio MO0410 EA User Manual

MO0410-EA  
Operation Guide 2734 58 3748 9  
About This Manual  
• The operational procedures for Modules 2734, 2758,  
3748, and 3749 are identical. All of the illustrations in  
this manual show Modules 2734 and 2758.  
• 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.  
Modules 2734 and 2758  
Modules 3748 and 3749  
General Guide  
Alarm Mode  
Date Alert Mode  
Press C to change from mode to mode.  
In any mode, press B to illuminate the display.  
World Time Mode  
Press C.  
Timekeeping Mode  
Stopwatch Mode  
Time Recorder Mode  
Hand Setting Mode  
Radio-controlled Timekeeping  
Important!  
This watch receives a time calibration signal and update  
its time setting accordingly. The time calibration signal  
includes both Standard Time and Daylight Saving Time  
(summer time) data.  
Hour hand  
Minute hand  
Position the watch as shown in the nearby illustration, with its 12 oclock side facing  
towards a window. Make sure there are no metal objects nearby.  
This watch is designed to pick up the time calibration  
signal transmitted from Rugby, England and the signal  
from Mainflingen, Germany.  
Current Time Setting  
This watch automatically adjusts its digital time setting in  
accordance with a time calibration signal. You can also  
perform a manual procedure to set the time and date,  
when necessary.  
Resin Band Metal Band  
Day of week  
Month Day  
The first thing you should do after purchasing this watch  
is to set your Home City, which is the city where you will  
normally use the watch. For more information, see “To  
set your Home City” below.  
When using the watch that is outside of the range of the transmitters in Rugby and  
Mainflingen, you need to manually adjust the time as required. See Timekeeping”  
for information about manual settings.  
The watch should not be on its side or facing the wrong way.  
Proper signal reception can be difficult or even impossible under the conditions  
listed below.  
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 Timekeepingfor more information.  
To set your Home City  
1. In the Timekeeping Mode, hold down A until the  
transmitter indicator (A/T, MSF, or DCF) starts to  
flash, which indicates the setting screen.  
If the displayed transmitter indicator shows  
something other than A/T, use D to display A/T  
before advancing to the next step.  
Inside or  
among  
Inside a  
vehicle  
Near  
household  
Near a  
construction  
Near high-  
tension  
Among or  
behind  
buildings  
appliances or site, airport, or power lines  
mountains  
office  
other sources  
of electrical  
noise  
equipment,  
or a mobile  
phone  
2. Press C to display the city code setting screen.  
3. Use D(east) and B(west) to select the city code you  
want to use as your Home City.  
Signal reception is normally better at night than during the day.  
Time calibration signal reception takes from two to five minutes, but in some cases  
it can take as long as 12 minutes. Take care that you do not perform any button  
operations or move the watch during this time.  
City code  
The following are the city codes for major cities in the Western Europe time  
zones.  
LON: London  
1,500 kilometers  
PAR and BER: Paris, Berlin, Milan, Rome, Amsterdam, Hamburg, Frankfurt,  
Vienna, Barcelona, Madrid  
4. Press A twice to exit the setting screen.  
The first press of A displays the 12/24-hour setting screen. Pressing A again  
exits the setting screen.  
Rugby  
Important!  
500 kilometers  
Mainflingen  
Normally, your watch should show the correct time as soon as you select your  
Home City code. If it does not, it should adjust automatically after the next auto  
receive operation (in the middle of the night). You can also perform manual receive  
or you can set the time manually.  
This watch is designed to receive the time calibration signal transmitted from  
Rugby, England and the signal from Mainflingen, Germany. Signal reception is  
possible within the area represented by a circle with a radius of about 1,500  
kilometers.  
If you are in an area that does not use Daylight Saving Time (summer time), turn off  
the DST setting.  
See Transmittersfor details about the transmitter indicator.  
At distances further than about 500 kilometers from a transmitter, signal reception  
may not be possible during certain times of year or times of day. Radio interference  
may also cause problems with reception.  
See the information under Signal Receive Troubleshootingif you experience  
problems with time calibration signal reception.  
Time Calibration Signal Reception  
There are two different methods you can use to receive the time calibration signal:  
auto receive and manual receive.  
Auto Receive  
With auto receive, the watch automatically picks up the time calibration signal five  
times a day at 0:00 a.m., 1:00 a.m., 2:00 a.m., 3:00 a.m., and 4:00 a.m. For more  
information, see About Auto Receive.  
Manual Receive  
Manual receive lets you start a time calibration receive operation with the press of  
a button. For more information, see To perform manual receive.  
1
Operation Guide 2734 58 3748 9  
5. Press A to exit the setting screen.  
To turn an alert on and off  
With the target alarm (TAL), the time starts to countdown as soon as you set the  
1. In the Date Alert Mode, use D to select the screen for  
the alert (DA1 through DA5) whose alert type you  
want to select.  
alarm time.  
Countdown  
(Seconds)  
Countdown  
(Hours : Minutes)  
2. Press A to toggle it on and off.  
Note that the month and day do not appear if the alert  
is turned off.  
Alert On  
2 seconds  
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Press A.  
L
Target Alarm Screen  
Alarm Operation  
The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the  
watch is in. In the case of the snooze alarm, the alarm operation is performed a total  
of seven times, every five minutes, or until you turn the alarm off.  
The target alarm counts the time remaining from the current Home City time to the  
target alarm time. Note that the target alarm repeats automatically each day, as long  
as it is turned on.You need to turn off the target alarm to disable it.  
Pressing any button stops the alarm tone operation.  
Alert Off  
Time Recorder  
The Time Recorder Mode lets you store up to 30 time  
entries (month, day, hour, minutes) with the touch of a  
button. One way you can use the Time Recorder Mode is  
to record the start time and the end time of a particular  
event.  
All of the operations in this section are performed in the  
Time Recorder Mode, which you enter by pressing C.  
Current time  
(Hour : Minutes)  
Performing any one of the following operations during a 5-minute interval between  
snooze alarms cancels the current snooze alarm operation.  
Displaying the Timekeeping Mode setting screen  
Displaying the snooze alarm setting screen  
To test the alarm  
In the Alarm Mode, hold down D to sound the alarm.  
To record a Time Recorder time  
1. Use C to enter the Time Recorder Mode.  
This displays the Time Recorder standby screen.  
To turn an alarm on and off  
Standby Screen  
1. In the Alarm Mode, use D to select an alarm.  
Alarm on indicator  
2. Press A to toggle it on and off.  
Turning on a one-time alarm (AL1, AL2, AL3,  
TAL) displays the alarm on indicator on its Alarm  
Mode screen. Turning on the snooze alarm (SNZ)  
displays the alarm on indicator and snooze alarm  
indicator on its Alarm Mode screen.  
2. Press D to record the current date and time (month, day, hour, minutes).  
The recorded time flashes for about two seconds and then assigned the next  
available record number, in the range of T1 through T30. Next the time recorder  
standby screen appears.  
A new time is recorded each time you press D while the standby screen is on the  
display.  
Records are assigned numbers sequentially from T1 through T30.  
Storing a new time record when there are already 30 records stored in memory  
automatically deletes record T1, shifts the remaining records upwards by 1, and  
stores the new record as T30.  
Snooze alarm  
indicator  
In all modes, the alarm on indicator is shown for any  
alarm that is currently turned on. When the snooze  
Alarm on indicator  
alarm is on, the snooze alarm indicator is displayed in  
all modes.  
The alarm on indicator flashes while the alarm is  
sounding.  
The snooze alarm indicator flashes during the 5-minute  
To recall Time Recorder times  
intervals between alarms.  
1. In the Time Recorder Mode, press A to recall Time Recorder times.  
If there are no time recorder times currently in memory, the standby screen  
remains on the display when you press A.  
Snooze alarm  
indicator  
Modules 3748 and 3749  
2. Use D to scroll through times stored in memory.  
To turn the Hourly Time Signal on and off  
Recorded time  
(Hour : Minutes)  
Recorded date (Month Day)  
1. In the Alarm Mode, use D to select the Hourly Time  
Signal (  
).  
SIG  
Alternate at two-second interval  
2. Press A to toggle it on (the Hourly Time Signal on  
indicator displayed) and off (the Hourly Time Signal on  
indicator not displayed).  
Time record number  
The Hourly Time Signal on indicator is displayed in all  
modes when the Hourly Time Signal is turned on.  
Each press of D scrolls through time records from higher numbered (newer)  
records to lower numbered records.  
Hourly time signal  
on indicator  
If you recorded a new Time Recorder time since you last entered the Time  
Recorder Mode, the newest record appears first. If you have not recorded a new  
time, the record you were viewing when you last exited the Time Recorder Mode  
appears first.  
Press A to return to the standby screen.  
To delete all Time Recorder times  
Enter the Time Recorder Mode. While holding down A, press D to delete all Time  
Recorder times.  
Modules 3748 and 3749  
Date Alert  
Stopwatch  
Date Alert helps you to remember an important date. After you set an alert date  
(month and day), a date alert indicator (!) and the current date flash for 24 hours after  
the alert date arrives in the Timekeeping Mode. You can set up to five different date  
alerts.  
The stopwatch lets you measure elapsed time, split  
times, and two finishes.  
Minutes  
Seconds  
The display range of the stopwatch is 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.  
Alert date  
(MonthDay)  
Current date  
(MonthDay)  
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1/100 second  
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Date alert  
indicator  
Alert name  
Date Alert Mode Screen  
Timekeeping Mode Screen  
(Current date does not flash if  
digital time is displayed on the  
Timekeeping Mode screen.)  
To measure times with the stopwatch  
Elapsed Time  
D
Start  
D  
Stop  
D  
Re-start  
D
A  
Clear  
To set the alert date  
Stop  
1. Use C to enter the Date Alert Mode.  
2. Use D to scroll through the alert screens until the one  
whose date you want to set is displayed.  
Split Time  
A
A
D  
Stop  
D
Start  
A  
Split  
Split release  
Clear  
DA1  
DA2  
DA3  
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Two Finishes  
DA5  
DA4  
A
D
A  
Split release  
D
Start  
A  
Split  
Stop  
Clear  
3. After you select an alert, hold down A until the month setting of the alert date  
starts to flash, which indicates the setting screen.  
First runner  
Second runner  
finishes.  
Display time of  
second runner.  
finishes.  
This operation automatically turns on the alert.  
Display time of  
first runner.  
4. Press C to move the flashing between the month and day settings.  
5. While the month or day setting is flashing, use D (+) and B () to change it.  
6. Press A to exit the setting screen.  
3
Operation Guide 2734 58 3748 9  
Timekeeping  
Use the Timekeeping Mode to set and view the current time and date. This section  
also explains how to manually set the current date and time.  
All of the operations in this section are performed in the Timekeeping Mode, which  
you can enter by pressing C.  
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  
Month Day  
Hour: Minutes Seconds  
Press A.  
Month Day  
The hands for the analog timepiece move to adjust to a new setting whenever any  
A
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 timeto match the analog setting to the  
digital setting.  
Seconds  
A
L
Day of week  
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.  
Press D.  
Last Signal Screen  
Setting the Digital Time and Date Manually  
Make sure you select your Home City code before you 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.  
To adjust the analog time  
1. In the Timekeeping Mode, press C six times to enter  
the Hand Setting Mode.  
2. Hold down A until the current digital time starts to  
flash, which indicates the setting screen.  
3. Use D (+) and B () to adjust the analog setting as  
described below.  
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To set the current digital time and date manually  
1. In the Timekeeping Mode, hold down A until the  
transmitter indicator starts to flash, which indicates the  
setting screen.  
Current time  
2. Use A or C to move the flashing in the sequence  
shown below to select other settings.  
When you want to do this:  
Move the hand setting  
forward 20 seconds  
Perform this button operation:  
Press D.  
Press C.  
/ Press A.  
C
Transmitter/  
City Settings  
Auto  
Receive  
City Code  
DST  
Transmitter  
Move the hand setting back  
20 seconds  
Move the hand setting a short  
way forward at high speed  
Press B.  
A
Hold down D.  
Release D when the hands reach the setting  
C
you want.  
Hold down B.  
12/24-Hour  
Format  
Seconds  
Month  
Hour  
Minutes  
Year  
Time/Date  
Settings  
Move the hand setting a  
short way back at high speed  
Release B when the hands reach the setting  
you want.  
Day  
Move the hand setting a  
long way forward at high  
speed  
While holding down D to move the hands at  
high-speed, press B to lock the high-speed  
hand movement.  
3. When the setting you want to change is flashing, use B and/or D to change it as  
described below.  
Press any button when the hands are close  
Transmitter/City Settings  
to the setting you want.  
Screen:  
To do this:  
Do this:  
Hand movement stops automatically if the  
hour hand makes one full (12-hour)  
revolution.  
Change the transmitter setting (A/T, Use D.  
MSF, or DCF)  
Change the city code  
Use D (east) and B (west).  
Move the hand setting a long While holding down B to move the hands at  
way back at high speed  
high-speed, press D to lock the high-speed  
hand movement.  
Toggle between Daylight Saving  
Time (ON) , Standard Time (OFF),  
or Auto DST (A)  
Press D.  
DST  
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.  
Toggle between auto receive on  
(ON) and off (OF)  
Press D.  
See City Code Tablefor a complete list of available city codes.  
Time/Date Settings  
4. Press A to exit the setting screen.  
The minute hand will be adjusted slightly to match the seconds when you exit the  
setting screen.  
Screen:  
To do this:  
Do this:  
Press D.  
Toggle between 12-hour (12H)  
and 24-hour (24H) timekeeping  
Reset the seconds to 00  
To return to the Timekeeping Mode, press C.  
Press D.  
Change the hour or minutes  
Change the month, day, or year  
Use D (+) and B ().  
Use D (+) and B ().  
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.  
4. Use A to exit the setting screen.  
If a Transmitter/City Setting screen is displayed, press A twice.  
If a Time/Date Setting screen is displayed, press A once.  
Auto return features  
When you exit the setting screen, the analog hands are adjusted automatically to  
match the digital time. See Analog Timekeepingfor more information.  
If you leave the watch in the Alarm (except for the target alarm screen explained  
under To set an alarm time), Date Alert, or Hand Setting Mode for two or three  
minutes without performing any operation, it automatically changes to the  
Timekeeping Mode.  
If you leave the watch with a flashing setting or cursor on the display for two or  
three minutes without performing any operation, it automatically saves any settings  
you have made up to that point and exits the setting screen.  
Note  
See Transmittersfor more information.  
Auto DST (A) can be selected only while BER, PAR, LON, or ATH is selected as the  
Home City code. For more information, see Daylight Saving Time (DST)below.  
The auto receive setting is used for time calibration signal reception only. See  
About Auto Receivefor details.  
Scrolling  
Daylight SavingTime (DST)  
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 through the data at high speed.  
Daylight Saving Time (summer time) 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 Rugby and Mainflingen include both  
Standard Time and DST data. When the Auto DST setting is turned on, the watch  
switches between Standard Time and DST (summer time) automatically in  
accordance with the received time signal.  
Initial Screens  
When you enter the World Time, Alarm, or Date Alert Mode, the data you were  
viewing when you last exited the mode appears first.  
The default DST setting is Auto DST (A) whenever you select BER, PAR, LON,  
Radio-controlledTimekeeping Precautions  
or ATH as your Home City code.  
Strong electrostatic charge can result in the wrong time being set.  
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.  
If you experience problems receiving the time calibration signal in your area, it is  
probably best to switch between Standard Time and Daylight Saving Time (summer  
time) manually.  
To change the Daylight Saving Time (summer time) setting  
1. In the Timekeeping Mode, hold down A until transmitter indicator starts to flash,  
which indicates the setting screen.  
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.  
2. Press C twice and the DST setting screen appears.  
3. Use D to cycle through the DST settings in the sequence shown below.  
Even if the time calibration signal is received properly, certain conditions can  
cause the time setting to be off by up to one second.  
Auto DST(A  
)
DST off(OFF)  
DST on(ON)  
4. When the setting you want is selected, press A twice to exit the setting screen.  
4
Operation Guide 2734 58 3748 9  
The current time setting in accordance with the time calibration signal takes priority  
over any time settings you make.  
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.  
Though this watch is designed to receive both time data (hour, minutes, seconds)  
and date data (year, month, day), certain signal conditions can limit reception to  
time data only.  
Normally, the signal reception date shown by the Last Signal screen is the date  
data included in the received time calibration signal. When only time data is  
received, however, the Last Signal screen shows date as kept in the Timekeeping  
Mode at the time of signal reception.  
If you are in an area where proper time calibration signal reception is impossible,  
the watch keeps time within 20 seconds a month at normal temperature.  
If you have problems with proper time calibration signal reception or if the time  
setting is wrong after signal reception, check your transmitter, current city code,  
DST (summer time), and auto receive settings. The following are the initial factory  
defaults for these settings.  
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 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. The  
indicator 24 indicates the 24-hour format.  
Backlight Precautions  
The backlight uses an EL (electro-luminescent) panel for easy reading in the dark.  
In any mode, press B to 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.  
Setting  
Transmitter  
City code  
Initial Factory Default  
A/T  
City Code Table  
LON (London) (Module 2734 and 3749)  
BER (Berlin) (Module 2758 and 3748)  
City  
Code  
– – –  
HNL  
GMT  
Differential  
11.0  
City  
Other major cities in same time zone  
Pago Pago  
Papeete  
DST (summer time)  
Auto receive  
A
(Auto switching)  
Honolulu  
Anchorage  
10.0  
DST  
ON  
ANC  
09.0  
Nome  
(Auto receive)  
San Francisco, Las Vegas, Vancouver,  
Seattle/Tacoma, 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  
LAX  
DEN  
CHI  
Los Angeles  
Denver  
08.0  
07.0  
06.0  
R/C  
Transmitters  
Chicago  
This watch is designed to receive the time calibration signal transmitted from Rugby,  
England and the signal from Mainflingen, Germany. You can select either one of the  
transmitters, or you can configure the watch to automatically select the transmitter  
that has the strongest signal.  
NYC  
New York  
05.0  
CCS  
RIO  
Caracas  
Rio De Janeiro  
04.0  
03.0  
02.0  
01.0  
– – –  
– – –  
GMT  
LON  
PAR  
BER  
ATH  
CAI  
JRS  
JED  
THR  
DXB  
KBL  
KHI  
The following explains how the watch determines which transmitter it should check  
first while the watch is configured for auto transmitter search (A/T).  
Praia  
Dublin, Lisbon, Casablanca, Dakar, Abidjan  
+00.0  
+01.0  
London  
Paris  
Berlin  
Athens  
Cairo  
Jerusalem  
Jeddah  
Tehran  
Dubai  
Kabul  
Karachi  
Delhi  
Module 2734 and 3749  
In this case:  
The first signal auto search operation  
after factory default settings are in effect, 2. If the Rugby signal cannot be received,  
or after the city code has been changed  
Any case other than the above.  
Milan, Rome, Madrid, Amsterdam, Algiers, Hamburg,  
Frankfurt, Vienna, Stockholm, Barcelona  
Helsinki, Istanbul, Beirut, Damascus,  
Cape Town  
The watch does this:  
1. Checks the Rugby signal first.  
+02.0  
+03.0  
+03.5  
+04.0  
+04.5  
+05.0  
+05.5  
+06.0  
+06.5  
+07.0  
Kuwait, Riyadh, Aden, Addis Ababa, Nairobi, Moscow  
checks the Mainflingen signal.  
1. Checks the last successfully received  
signal first.  
2. If the last successfully received signal  
cannot be received, checks the other  
signal.  
Shiraz  
Abu Dhabi, Muscat  
Male  
DEL  
DAC  
RGN  
BKK  
Mumbai, Kolkata  
Colombo  
Dhaka  
Yangon  
Bangkok  
Jakarta, Phnom Penh, Hanoi, Vientiane  
Singapore, Kuala Lumpur, Beijing, Taipei, Manila, Perth,  
Ulaanbaatar  
Module 2758 and 3748  
In this case:  
HKG  
Hong Kong  
+08.0  
The watch does this:  
SEL  
TYO  
ADL  
SYD  
NOU  
WLG  
Seoul  
Tokyo  
Adelaide  
Sydney  
Noumea  
Wellington  
Pyongyang  
+09.0  
The first signal auto search operation  
after factory default settings are in effect, 2. If the Mainflingen signal cannot be  
or after the city code has been changed  
Any case other than the above.  
1. Checks the Mainflingen signal first.  
+09.5  
+10.0  
+11.0  
+12.0  
Darwin  
Melbourne, Guam, Rabaul  
Port Vila  
received, checks the Rugby signal.  
1. Checks the last successfully received  
signal first.  
2. If the last successfully received signal  
cannot be received, checks the other  
signal.  
Christchurch, Nadi, Nauru Island  
Based on data as of June 2004.  
Since the watch checks signals from both transmitters when A/T is selected as  
the transmitter setting, the signal receive operation can take as long as 12 minutes.  
To find out the module number of your watch, look at its  
2734  
2758  
back cover. The Module number (2734, 2758, 3748, or  
3749) will be engraved inside the box on the back  
cover.  
To select a transmitter  
1. In the Timekeeping Mode, hold down A until the  
transmitter indicator starts to flash, which indicates the  
setting screen.  
2. Use D to scroll through available transmitter settings  
until the one you want to select is displayed.  
To set up the watch to do this:  
Select this transmitter setting:  
Automatically select the Rugby or Mainflingen signal  
Receive the Mainflingen signal  
Receive the Rugby signal  
A/T  
DCF  
MSF  
Note that --- appears in place of the transmitter indicator when any city code  
besides LON, PAR, BER, or ATH is selected as the Home City code. This  
indicates that you cannot specify a transmitter.  
3.Press A twice to exit the setting screen.  
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 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 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 and World Time Mode  
is calculated in accordance with the Greenwich Mean Time (GMT) differential for  
each city, based on your Home City time setting.  
GMT differential is calculated by this watch based on Universal Time Coordinated  
(UTC*) data.  
* The letters UTCstands 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 Earths rotation. The reference point for UTC is  
Greenwich, England.  
5

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