Casio Watch MA0312 EA User Manual

MA0312-EA  
Operation Guide 2839  
Power Saving  
Power Saving causes the watch to automatically enter a sleep state to save power whenever the watch is left in the dark. The Power  
Saving feature is turned on at the factory.  
Note that the watch may also enter the sleep state if the watch is blocked from light by your sleeve.  
To recover from the sleep state  
How the sleep state works  
Place the watch in an area that is well-lit, press any button, or  
angle the watch toward your face to illuminate the display using  
the Auto Light (see “To illuminate the display”).  
Display sleep state  
The display sleep state is triggered whenever the watch is left in  
the dark for about one hour between the hours of 10 p.m. and 6  
a.m.  
It can take up to two seconds before display figures re-appear  
after you place the watch in a well-lit area.  
The display goes blank and a SLEEP indicator flashes on the  
display. Alarms and the hourly time signal continue to operate  
normally while the watch is in the display sleep state.  
The watch does not enter the sleep state if it is in the  
Stopwatch Mode.  
To turn Power Saving on and off  
Use the procedure under “Configuring Time and Date Settings  
Manually” to turn Power Saving on or off.  
SLEEP Indicator  
The watch automatically enters the sleep state if left in a  
desk drawer or some other dark place for a long time while  
Power Saving is turned on.  
Function sleep state  
The function sleep state is triggered whenever the watch is left  
in the dark for six or seven days.  
The SLEEP indicator stops flashing and remains on the display.  
Alarms and the hourly time signal are also disabled while the  
watch is in the function sleep state. Time calibration signal  
reception is not performed while the watch is in the function  
sleep state.  
Timekeeping continues internally in the function sleep state.  
Modes and Display Screens  
The watch will automatically revert to the Timekeeping Mode if you leave it in the Alarm Mode or Recall Mode without performing any  
operation for about two or three minutes.  
In the Alarm Mode, an alarm number, the snooze alarm indicator (SNZ), or the hourly time signal indicator (SIG) identifies the currently  
displayed screen.  
Timekeeping Mode  
World Time Mode  
Recall Mode  
Day of the Week Month, Day  
Time Stamp (Time Memo)  
Holding down the  
button for about one second  
City Code  
Mode Indicator  
in the Timekeeping Mode creates a record  
containing the current date (month and day) and  
time (hour, minute, second) in memory. Storage  
of the record is indicated by the watch beeping.  
The display shows the contents of the record  
for about two seconds, after which the normal  
Timekeeping Mode display reappears.  
See “Viewing Time Stamp (Time Memo) Data”  
for information about recalling Time Stamp  
records.  
PM indicator  
(no indicator  
for AM)  
Hour, Minute,  
Second  
Record number flashes  
for about three seconds.  
Stopwatch Mode  
Alarm Mode  
Recorded hour  
and minute  
(Light)  
Mode Indicator  
Alarm Number  
Days of the Week  
SUN: Sunday  
MON: Monday TUE: Tuesday  
WED: Wednesday THU: Thursday FRI: Friday  
SAT: Saturday  
Current time  
1
 
Operation Guide 2839  
Reception Range  
How a Radio-controlled Watch Works  
This watch is designed to receive the standard time calibration signal of Japan (JJY) or of the United States (WWVB). The signal that is  
received depends on the current Home City setting.  
For information about city codes, see the “Selecting Your Home City”.  
What is a radio-controlled watch?  
Calibration Signal  
Your radio-controlled watch is designed to receive a time  
calibration signal that contains standard time data, and adjust its  
current time setting accordingly.  
The Japanese calibration signal (Call Sign: JJY) is maintained by  
the independent Japan Ministry of Posts and Telecommunications  
Communication Research Laboratory (CRL). It is a long wave  
signal transmitted 24 hours a day from the Mt. Otakadoya  
transmitter (40kHz) located in Tamura-gun, Fukushima Prefecture,  
and from the Mt. Hagane transmitter (60kHz) located on the  
border between Saga Prefecture and Fukuoka Prefecture.  
The U.S. calibration signal (Call Sign: WWVB) is transmitted by  
the National Institute of Standards and technology from Fort  
Collins, Colorado.  
Home City  
Transmitter  
TYO  
Either the Mt. Otakadoya signal (40kHz) or the Mt. Hagane signal (60kHz)  
Fort Collins, Colorado signal  
LAX, DEN, CHI, NYC   
Signal is received  
using built-in antenna.  
Long-wave  
time calibration  
signal  
Transmitter  
Transmitter Location  
Transmitter Location  
1000km  
Watch decodes  
received data  
and converts it to  
time data.  
Signal data  
Decode  
3000km  
Mt. Otakadoya  
(40kHz)  
Note that transmission of the standard wave may be  
interrupted occasionally due to maintenance, lightening, etc.  
500km  
Mt. Hagane  
500km  
1000km  
Time data  
Internally  
Time is adjusted  
according to time  
data.  
Cesium  
atomic clock  
(60kHz)  
Watch  
Fort Collins  
1000km  
Under optimum conditions, the calibration signal should be  
Under optimum conditions, the calibration signal should be  
After the watch receives the Standard Time signal, it performs  
internal calculations to determine the current time. Because of  
this, there may be an error of up to one second in the  
displayed time.  
receivable up to 1,000 kilometers from the transmitter. Note  
that the wave is relatively weak at distances greater than  
500km, so reception may be poor at long distances.  
receivable up to 3,000 kilometers from the transmitter. Note  
that the wave is relatively weak at distances greater than  
1,000km, so reception may be poor at long distances.  
Geographic contours, nearby buildings, the season, the time of day, can even make reception impossible even when you are within range of  
the transmitter.  
Best reception is possible late at night.  
Time Required for Reception  
Receive Icon  
Location  
Receiving the Calibration Signal  
A calibration signal receive operation takes anywhere from about  
two to six minutes.  
The receive icon cycles from  
“Unstable” through “Stable” as  
shown below while reception is in  
progress. How far it cycles depends  
on the signal strength. Keep the  
watch in a location where reception  
is stable while reception is in  
progress.  
Reception is difficult and may even be impossible in the locations  
described below. Avoid such locations when performing signal  
reception.  
There are two methods you can use to receive the time calibration  
signal.  
Note that when “AUTO” (Auto Select) is specified as the transmitter  
selection mode, signal reception can take up to 12 minutes.  
See “Signal Reception Settings” for more information.  
Auto receive (Reception is performed automatically at 2:00,  
3:00, 4:00, and 5:00 each morning.)  
You should think of your watch operating like a radio or TV when it  
is receiving the calibration signal.  
Manual receive (You initiate reception using a button  
operation.)  
The watch is set up for auto receive at the factory, so all you need to  
do is to place it in a location that allows good reception each night.  
To perform manual receive  
Receive Icon  
Receiving Indicator  
Hold down the D button for  
about two seconds.  
To position the watch for optimum  
reception  
Among or near buildings  
Near high-voltage lines  
The watch will beep and  
reception will start. The signal  
receive indicator changes to  
while signal reception is in  
progress.  
Remove the watch from your wrist and place it somewhere so its  
top (12 o’clock side, where the antenna is located) is facing  
approximately in the direction of the signal transmitter. Keep the  
watch away from metal objects.  
Unstable  
Stable  
Receive icon  
Even under optimum reception conditions, it can take about 10  
seconds for reception to stabilize.  
To interrupt reception  
Next to a household appliance or  
office equipment (TV, speaker,  
fax, computer, cell phone, etc.)  
Inside a vehicle (automobile,  
train, plane, etc.)  
Press the D button.  
Resin band  
Use the receive icon to check reception status and to  
determine the best location for signal reception.  
Note that weather, the time of day, surroundings, and other  
factors can all affect reception.  
All other buttons besides D are disabled during signal reception.  
When reception is successful  
The watch terminates reception and adjusts the current time. Next  
it beeps and then displays the date and time the adjustment was  
performed.  
The  
The  
icon on the display also indicates successful signal reception.  
icon is cleared from the display each day at 3:00 a.m.  
In a location where there is  
radio interference (construction  
site, airport, etc.)  
Near mountains  
Metal band  
Reception Error (ERR Indicator)  
The watch does not adjust its current time setting, and displays  
“ERR” when signal reception is unsuccessful for some reason.  
If you are experiencing problems with reception, move away  
from the types of locations described above to a location with  
better reception, and try again.  
Orienting the watch so it is sideways to the transmitter makes it  
more difficult to receive the signal.  
Do not move the watch while it is receiving the calibration signal.  
The display will return to the normal timekeeping screen automatically  
if you do not perform any operation for about one or two minutes.  
3
 
Operation Guide 2839  
To view the last reception date and time  
Selecting Your Home City  
Signal Reception Settings  
Note that time calibration signal reception is performed only when one of the city codes shown below is selected as the Home City.  
Home City  
In the Timekeeping Mode,  
press the D button.  
Specify the city code of your “Home City”, which is the location  
where you will normally use the watch.  
Select TYO (Tokyo) as you Home City if you plan to use the watch in Japan.  
Summer Time (Daylight Saving Time)  
Home City  
Transmitter  
This displays the date and time  
when signal reception was last  
successful, and the current time  
and date were adjusted.  
Use this setting to specify whether summer time (Daylight Saving  
Time) settings should be made automatically by the watch.  
TYO  
Either the Mt. Otakadoya signal (40kHz) or the Mt. Hagane signal (60kHz)  
Fort Collins, Colorado signal  
Auto Receive  
LAX, DEN, CHI, NYC   
This settings is used to select either auto receive or manual  
receive.  
To return to the timekeeping  
screen, press the D button again.  
The display will return to the  
normal timekeeping screen  
automatically if you do not  
perform any operation for about  
one or two minutes.  
Timekeeping Mode  
City Code  
1.  
In the Timekeeping Mode  
hold down the A button  
for about two seconds.  
2.  
Press the C button once  
to select the Home City  
setting.  
Transmitter Selection Mode  
This setting is used to specify which transmitter’s signal should be  
used for time calibration in Japan.  
Auto receive can be selected only when TYO, LAX, DEN, CHI, or  
NYC is currently selected as the Home City.  
This will cause the watch to  
beep and display the transmitter  
selection mode setting screen.  
The currently selected city  
code will be flashing on the  
screen.  
The transmitter selection mode setting can be changed only when  
TYO is currently selected as the Home City.  
Important!  
The calibration signals received by this watch include two data  
groups: an hour-minute-second group and a year-month-day  
group.  
The initial factory default signal reception settings are shown  
below. You do not need to change these settings if you use the  
watch in Japan.  
A Button  
Enters/exits the setting mode.  
(Back)  
3.  
Use the D (+) and B (–)  
buttons to scroll through  
the city codes until the  
one you want to select is  
displayed.  
The  
icon is displayed only  
B Button  
Check the signal reception settings whenever you have problems  
with signal reception or when the time setting produced by signal  
reception is incorrect.  
when both the  
Scrolls back through the  
options at the flashing  
(selected) setting.  
hour-minute-second group and  
year-month-day group were  
received. It will not remain on the  
display if only the hour-minute-  
second group was received.  
C Button  
Home City  
TYO  
AUTO  
ON  
Tokyo  
(Forward)  
Holding down either button  
scrolls at high speed.  
not displayed  
not displayed  
Moves the flashing  
between settings.  
Auto switching in accordance  
with signal data  
FREQUENCY (Frequency)  
Summer Time  
Auto Receive  
Transmitter  
See the “World Time City Code List” for information about city  
codes.  
Hour-minute-second group  
and year-month-day group received:  
Hour-minute-second group only received:  
D Button  
displayed  
Scrolls forward through the  
options at the flashing  
(selected) setting.  
On  
Auto Japan transmitter select  
(40kHz/60kHz)  
AUTO  
If only hour, minute, and second data (no date data) is received,  
the last reception date shows the date that the receive operation  
was performed (as kept in the Timekeeping Mode).  
(Twice)  
(Twice)  
Configuring Summer Time  
4.  
When the city code you  
want is displayed, press  
the A button twice.  
3.  
Press the D button to  
cycle through the summer  
time settings in the  
4.  
When the summer time  
setting is the way you  
want, press the A button  
twice.  
(Daylight Saving Time) Settings  
When using this watch in Japan, it is recommended that you use  
the “AUTO” summer time setting.  
sequence shown below.  
This will exit the setting  
screen and return to the  
Timekeeping Mode screen.  
Turning on summer time (On)  
causes the current time  
setting to advance one hour.  
This will exit the setting  
screen and return to the  
Timekeeping Mode screen.  
(Setting  
Selection)  
Timekeeping Mode  
1.  
In the Timekeeping Mode  
hold down the A button  
for about two seconds.  
The display also will exit the setting screen automatically if  
you do not perform any operation for about two or three  
minutes.  
The display also will exit the setting screen automatically if  
you do not perform any operation for about two or three  
minutes.  
AUTO  
OFF  
ON  
This will cause the watch to  
beep and display the  
transmitter selection mode  
setting screen.  
Selecting the LAX, DEN, CHI, or NYC city code as your Home  
City will also display a U.S. time zone indicator.  
Summer time, or Daylight Saving Time (DST) as is it is called  
in some areas, calls for setting clocks ahead one hour during  
the summer season. Note that the use of summer time  
depends on the country and even the local area.  
AUTO  
This setting enables the auto summer time setting, which  
turns summer time on or off in accordance with the received  
time calibration signal.  
Example: Eastern time zone  
A Button  
Enters/exits the setting  
mode.  
This setting uses Japan summer time data when TYO is  
selected as the Home City, and U.S. DST data when NYC,  
CHI, DEN, or LAX is selected as the Home City.  
C Button  
Moves the flashing  
between settings.  
Note that “AUTO” can be selected only when TYO, LAX,  
DEN, CHI, or NYC is selected as the Home City.  
D Button  
LAX = P (Pacific Time Zone)  
DEN = M (Mountain Time Zone)  
CHI = C (Central Time Zone)  
NYC = E (Eastern Time Zone)  
Scrolls through the  
available settings.  
OFF  
FREQUENCY (Frequency)  
This setting turns off summer time and returns to normal  
timekeeping.  
On  
2.  
Press the C button twice  
to select the summer time  
setting.  
This setting turns on summer time and advances the current  
time by one hour.  
The DST indicator appears on the display while summer  
time is turned on.  
The current summer time  
setting will be flashing on the  
display.  
4
 
Operation Guide 2839  
Configuring Auto Receive Settings  
Configuring Transmitter Selection Mode Settings  
Auto receive settings can be configured only when TYO, LAX, DEN, CHI, or NYC is selected as the Home City.  
Note that the transmitter selection mode setting can be configured only when “TYO” (Tokyo) is selected as the Home City.  
When using this watch in Japan, it is recommended that you use the “AUTO On” auto recieve setting.  
When using this watch in Japan, it is recommended that you use the “AUTO” transmitter selection mode setting.  
Timekeeping Mode  
Timekeeping Mode  
1.  
In the Timekeeping Mode  
hold down the A button  
for about two seconds.  
3.  
Press the D button to  
toggle auto receive on or  
off.  
1.  
In the Timekeeping Mode  
hold down the A button  
for about two seconds.  
2.  
Use the D button to scroll  
through the transmitter  
selection mode settings  
until the one you want is  
displayed.  
This will cause the watch to  
beep and display the  
transmitter selection mode  
setting screen.  
“– – –” is displayed for the  
auto receive setting when the  
current Home City setting is a  
code other than TYO, LAX,  
DEN, CHI, or NYC.  
This will cause the watch to  
beep and display the  
transmitter selection mode  
setting screen.  
Each press of the D button  
cycles through available  
settings in the sequence  
shown below.  
“– – –” is displayed for the transmitter selection mode setting  
when the current Home Time setting is a code other than  
TYO.  
(Toggles  
Setting)  
A Button  
Enters/exits the setting  
mode.  
A Button  
Enters/exits the setting  
mode.  
(Twice)  
4.  
When the auto recieve  
setting is the way you  
want, press the A button  
twice.  
C Button  
Moves the flashing  
between settings.  
D Button  
Scrolls through the  
available settings.  
AUTO  
40  
60  
This will exit the setting  
screen and return to the  
Timekeeping Mode screen.  
The display also will exit the setting screen automatically if  
you do not perform any operation for about two or three  
minutes.  
D Button  
Scrolls through the  
available settings.  
FREQUENCY (Frequency)  
FREQUENCY (Frequency)  
AUTO  
With this setting, the watch automatically selects either the Mt.  
Otakadoya signal (40kHz) or the Mt. Hagane signal (60kHz),  
whichever is strongest.  
2.  
Press the C button three  
times to select the auto  
receive setting.  
40  
With this setting, the watch always receives the Mt. Otakadoya  
signal (40kHz).  
“AUTO” will be displayed,  
along with the current auto  
receive setting.  
60  
With this setting, the watch always receives the Mt. Hagane  
signal (60kHz).  
Example: On  
(Twice)  
Calibration Signal Reception  
Precautions  
Troubleshooting  
3.  
When the setting you want  
is displayed, press the A  
button twice.  
The watch cannot receive the time calibration signal.  
Time calibration signal reception is successful, but the hourly  
time signal and current time are slightly off.  
Auto reception can be performed while the watch is in the  
Timekeeping Mode or World Time Mode only.  
Is the signal being transmitted?  
Though the Japanese calibration signal (Call Sign: JJY) is  
continually transmitted by the independent Japan Ministry of  
Posts and Telecommunications Communication Research  
Laboratory (CRL) in theory, it may sometimes be interrupted for  
periodic maintenance work, or because of lightening or other  
problems.  
After the watch receives the time calibration signal, it performs an  
internal decoding process before updating its time setting.  
Because of this, the time setting may be slightly off (within one  
second).  
This will exit the setting  
screen and return to the  
Timekeeping Mode screen.  
Operating any button while auto reception is in progress will  
cause the watch to beep and then exit the receive operation.  
Make sure you are within the range of the calibration signal  
transmitter before performing the reception operation. Remember  
that geographic contours, nearby buildings, the season, the time  
of day, can even make reception impossible even when you are  
within range of the transmitter.  
The display also will exit the setting screen automatically if  
you do not perform any operation for about two or three  
minutes.  
Time calibration signal reception is successful, but the current  
time is one hour fast.  
Are you within the reception range of a transmitter?  
See “Reception Range” for information about areas where the  
watch can receive the signal.  
Is there something in the immediate area that may be interfering  
with reception?  
Do you have summer time (DST) turned on?  
Proper reception may be impossible if there is something blocking  
the signal. If reception is unsuccessful, try again.  
Use the procedure under “Configuring Summer Time (Daylight  
Saving Time) Settings” to turn off summer time.  
This watch is designed to adjust its current time setting in  
accordance with the calibration signal transmitted in Japan and  
the United States only. Note that you will need to make your own  
adjustments when using this watch outside of Japan or the United  
States, or in any area that is outside the range of one of the  
receivable time calibration signal transmitters.  
Even if you are within the reception range of a transmitter, objects  
between you and the transmitter or electrical noise can interfere  
with reception. Avoid such areas during signal reception. See  
“Location” for more information.  
Time calibration signal reception is successful, but the current  
time setting is wrong.  
Is the correct city code selected for your Home City?  
If you are in Japan, you should have TYO selected for your Home  
City. For other areas, select the correct Home City code using the  
procedure under “Selecting Your Home City”.  
Do you have the correct Home City code selected?  
Remember that auto receive is not performed unless TYO  
(Japan), NYC (New York), CHI (Chicago), DEN (Denver), or LAX  
(Los Angeles) is selected as the Home City. Select the correct  
Home City code using the procedure under “Selecting Your Home  
City”.  
When the watch is unable to adjust its time signal using the  
calibration signal for some reason, timekeeping accuracy is within  
15 seconds per month.  
±
Strong electrostatic charge can cause timekeeping error.  
Signal reception is cancelled if an alarm starts to sound while it is  
being performed.  
Is auto receive turned off?  
Use the procedure under “Configuring Auto Receive Settings” to  
turn on auto receive.  
Is the watch in any mode other than the Timekeeping Mode or  
World Time Mode during the auto receive times (2:00 a.m., 3:00  
a.m., 4:00 a.m., and 5:00 a.m.)?  
The watch’s calendar shows dates up to the year 2099.  
Attempting a receive operation after that causes an error.  
Auto receive is performed only when the watch is in the  
Timekeeping Mode or World Time Mode. It is not performed if the  
watch is in any other mode.  
5
 
Operation Guide 2839  
What time is auto receive performed?  
Auto receive is performed in the middle of the night, when  
Auto receive is turned on, but the receive icon  
display.  
is not on the  
World Time Mode  
reception conditions are best. Before going to bed at night, place  
the watch near a window, with its 12 o’clock position facing in the  
general direction of the transmitter.  
The receive icon appears when a signal is received successfully  
and the time is updated. It is not displayed if there is no  
successful signal reception throughout the day. Also note that the  
icon disappears from the display each day at 3:00 a.m. Make sure  
that you are using the watch in an area that is within the reception  
range of a transmitter, and make sure that the watch is in the  
Timekeeping Mode or World Time Mode when it is time for auto  
signal reception.  
World Time lets you display the current time in any one of 30 cities (29 time zones) around the world.  
When you enter the World Time Mode, the screen for the city that  
was displayed when you last exited the mode appears first.  
How can I perform manual receive?  
City Code Search  
Hold down the lower right D button for about two seconds. The  
watch will beep to indicate that manual receive has started. Place  
it near a window, with its 12 o’clock position facing in the general  
direction of the transmitter.  
(Back)  
Timekeeping Mode  
In the World Time Mode, use  
the D (+) and B (–) buttons  
to scroll through city codes.  
Time in Home City  
The current auto receive on (ON)/off (OFF) setting does not  
appear on the setting screen.  
City Code  
How can I view the last reception date and time?  
Holding either button scrolls at  
high speed.  
See the “World Time City Code  
List” for information about the  
display sequence of the city  
codes.  
The auto receive on/off setting is not displayed unless TYO  
(Japan), NYC (New York), CHI (Chicago), DEN (Denver), or LAX  
(Los Angeles) is selected as the Home City. Select the correct  
Home City code using the procedure under “Selecting Your Home  
City”.  
In the Timekeeping Mode, press the lower right D button. This  
will display the date and time that the time calibration signal was  
last received successfully. To return to the Timekeeping Mode,  
press the D button again.  
(Forward)  
(Once)  
Time in World Time City  
The AUTO, 40, and 60 options do not appear for the transmitter  
selection mode setting.  
After you set the current time for the Home City in the  
Timekeeping Mode, the World Time Mode calculates the current  
time in other cities around the world using the GMT differential for  
each time zone.  
The seconds count in the World Time Mode is linked with the  
Timekeeping Mode seconds count.  
B Button  
Scrolls back through city  
codes.  
The AUTO, 40, and 60 transmitter selection mode options are  
available only when TYO (Tokyo) is selected as the Home City  
code. Select the correct Home City code using the procedure  
under “Selecting Your Home City”.  
D Button  
Scrolls forward through city  
codes.  
If a World Time Mode time is incorrect, check the time setting  
and time zone setting of the Timekeeping Mode, and correct  
them if necessary.  
See “Selecting Your Home City” for information about  
selecting your Home City.  
Turning Summer Time (Daylight  
Saving Time) On and Off  
World Time City Code List  
Summer time, or Daylight Saving Time (DST) as is it is called  
in some countries, calls for setting clocks ahead one hour  
during the summer season. Note that the use of summer time  
depends on the country and even the local area.  
City Code  
– – –  
HNL  
ANC  
LAX  
City Name  
GMT Differential  
City Code  
JRS  
City Name  
Jerusalem  
Jeddah  
Teheran  
Dubai  
GMT Differential  
You can turn summer time on or off individually for each World  
Time city.  
–11  
–10  
–9  
–8  
–7  
–6  
–5  
–4  
–3  
–2  
–1  
+0  
+0  
+1  
+1  
+2  
+2  
+2  
+3  
Honolulu  
Anchorage  
Los Angeles  
Denver  
JED  
(Back)  
1.  
In the World Time Mode,  
use the D (+) and B (–)  
buttons to scroll through  
the city codes until the  
one you want is displayed.  
THR  
DXB  
KBL  
+3.5  
+4  
DEN  
CHI  
Kabul  
+4.5  
+5  
Chicago  
KHI  
Karachi  
Delhi  
Holding down either button  
scrolls at high speed.  
(Forward)  
NYC  
CCS  
RIO  
New York  
Caracas  
DEL  
+5.5  
+6  
DAC  
RGN  
BKK  
HKG  
SEL  
Dakar  
2.  
While the city code you  
want is displayed, hold  
down the A button for  
about one second to turn  
summer time on (DST  
indicator displayed) or off  
(DST indicator not  
Rio de Janeiro  
Yangon  
Bangkok  
Hong Kong  
Seoul  
+6.5  
+7  
– – –  
– – –  
GMT  
LON  
PAR  
BER  
ATH  
+8  
Greenwich Mean Time  
+9  
DST indicator  
displayed).  
London  
Paris  
TYO  
ADL  
Tokyo  
+9  
The watch beeps whenever  
you change the summer time  
setting.  
Adelaide  
Sydney  
Noumea  
Wellington  
+9.5  
+10  
+11  
+12  
Berlin  
Athens  
Cairo  
SYD  
NOU  
WLG  
A Button  
Hold down to toggle  
CAI  
summer time (Daylight  
Saving Time) on and off.  
The contents of the above table are current as of June 2003.  
Time differentials in the above table are in accordance with Universal Time Coordinated (UTC).  
6
 
Operation Guide 2839  
(Back)  
To set an alarm time  
3.  
Use the D (+) and B (–)  
buttons to change the  
hour setting.  
Alarm Mode  
Example: To set Alarm 2 for 3:30 p.m.  
Alarm Number  
You watch comes with five alarms and an hourly time signal.  
To select an alarm or the Hourly Time  
Signal screen  
1.  
In the Alarm Mode, use the  
D button to scroll through  
the alarm screens until the  
one whose setting you want  
to change is displayed.  
Holding down either button  
changes the setting at high  
speed.  
Daily Alarms (AL 1 to AL 4)  
The watch beeps for about 10 seconds when an alarm time is  
reached.  
Each press of the D button cycles through available screens in  
the sequence shown below.  
(Forward)  
When setting the hour, make  
sure you specify AM (A) or  
PM (P) correctly when using  
12-hour timekeeping, or that  
you specify the correct  
24-hour time.  
The same 12-hour/24-hour  
format you select for the  
Timekeeping Mode time is  
also applied in the Alarm  
Mode.  
Snooze Alarm (SNZ)  
Alarm 1  
Alarm 2  
Alarm 3  
Alarm 4  
With the snooze alarm, the watch beeps for 10 seconds when the  
alarm time is reached, and up to seven times at five-minute  
intervals thereafter (approximately 30 minutes total). Pressing any  
button stops the beeper, but the alarm will sound again after five  
minutes.  
The alarm number or snooze  
alarm indicator (SNZ) appears  
at the bottom of the display to  
indicate the current screen.  
Hourly Time Signal  
The hourly time signal causes the watch to beep twice every hour  
on the hour.  
Hour  
2.  
Hold down the A button  
for about two seconds  
until the hour digits start  
to flash on the display.  
When you enter the Alarm Mode, the screen for the alarm that was  
displayed when you last exited the mode appears first.  
Hourly Time Signal  
4.  
Press the C button to  
select the minute setting.  
This also causes the alarm on  
indicator to appear and  
automatically turns on the alarm.  
Timekeeping Mode  
Current Time  
Alarm on indicator  
Alarm Number  
A Button  
Minute  
Enters/exits the setting mode.  
B Button  
Scrolls back through the options at the flashing (selected)  
setting.  
Snooze Alarm  
C Button  
Moves the flashing between settings.  
(Three Times)  
Alarm Time  
D Button  
Scrolls forward through the options at the flashing  
(selected) setting.  
(Back)  
To turn an alarm or the hourly time  
signal on and off  
To stop the alarm beeper  
5.  
Use the D (+) and B (–)  
buttons to change the  
minute setting.  
Press any button.  
In the case of the snooze alarm the alarm will sound again in  
about five minutes. “SNZ” flashes while the snooze alarm is active  
(indicating that the alarm will sound again).  
Alarm number  
1.  
In the Alarm Mode, use the  
Each press of the B (+) and  
D (–) button changes the  
minute setting in 30-minute  
increments.  
Holding down either button  
changes the setting at high  
speed.  
D button to display the  
screen for the alarm you  
want to turn on or off.  
The snooze alarm will be canceled automatically when any of the  
following occurs while the Snooze alarm indicator (SNZ) is  
flashing on the display.  
(Forward)  
If you turn off the snooze alarm in the Alarm Mode.  
If you enter the Alarm Mode, display the snooze alarm screen,  
and then display the setting screen.  
If you enter the Timekeeping Mode and then display the setting  
screen.  
The alarm number or snooze  
alarm indicator (SNZ) appears  
at the bottom of the display to  
indicate the current screen.  
2.  
Press the B button to toggle the displayed alarm on or off.  
To test the alarm  
In the Alarm Mode, hold down the B button to sound the alarm.  
Alarm  
Hourly Time Signal  
6.  
When the setting is the  
way you want, press the  
A button.  
This exits the setting screen.  
Alarm On indicator  
Snooze Alarm  
Hourly Time Signal On Indicator  
The display also will exit the setting screen automatically if  
you do not perform any operation for about two or three  
minutes.  
Snooze On Indicator  
7
 
Operation Guide 2839  
Stopwatch Mode  
Configuring Time and Date Settings Manually  
The stopwatch measures elapsed time in units of 1/100 second up to 23 hours 59 minutes, 59.99 seconds (24 hours). When the maximum  
limit is reached, the elapsed time automatically returns to zero and timing continues from there.  
Normally, you should never need to configure time and date settings manually if you have auto receive turned on and you are within the  
range of a time calibration signal. If the watch is unable to update its settings automatically for some reason, however, you can configure  
them manually as described below.  
Elapsed Time Measurement  
Performing Stopwatch Operations  
Time and Date Settings  
Timekeeping Mode  
Mode Indicator  
Start  
Stop  
Reset  
Timekeeping Mode  
Pressing the B button while timing is stopped resets the  
stopwatch to all zeros.  
(Hold down about two seconds.)  
Transmitter Selection  
Home City Code  
Mode  
Cumulative Time Measurement  
Pressing the D button to restart the stopwatch without resetting it  
to all zeros causes the elapsed time measurement to resume from  
where it was last stopped.  
A Button  
Displays the setting screen.  
Changes from the first  
(Four times)  
About two  
seconds  
Auto Receive  
Summer Time  
setting group to the next.  
Exits the setting screen.  
Split Time Measurement  
B Button  
Hours  
C Button  
Moves the flashing  
between settings.  
Split/Reset  
Press during elapsed time  
measurement to display the  
split time.  
Start  
Record split Release split  
Stop  
Reset  
12/24-hour  
Seconds  
Hour  
Minute  
Timekeeping  
Pressing B while timing is being performed freezes the current  
elapsed time on the display, but timing of the next split continues  
internally.  
Press when elapsed time  
measurement is stopped to  
reset the stopwatch to all  
zeros.  
See “Signal Reception Settings” for information about  
calibration signal, Home City, summer time, and auto receive  
settings.  
Changing to another mode while a split time is displayed cancels  
the split time operation.  
Power Saving  
Day  
Month  
Year  
Minutes  
1/100 second  
Seconds  
While the setting screen (the one with a flashing setting) is on the  
display, use the C and A buttons to move the flashing between  
settings.  
D Button  
1st and 2nd Place Finishers  
Start/Stop  
Each press starts and  
stops elapsed time  
measurement.  
Start  
1st finish  
(Displays time  
of 1st finish.)  
2nd finish  
Displays time  
of 2nd finish.  
Reset  
To configure time and date settings  
manually  
2.  
Press the A button to  
advance to the next group  
of settings.  
5.  
To restart the seconds  
count to 00, press the D  
button.  
7.  
While the Power Saving  
setting is flashing, press  
the D button to toggle it  
on (PS On) or off (PS OF).  
Timekeeping Mode  
This causes the 12/24-hour  
timekeeping setting to flash.  
Example: 12H (12-hour  
timekeeping)  
1.  
In the Timekeeping Mode  
Pressing the D button while  
the seconds count is in the  
range of 30 to 59 resets it to  
00 and also adds 1 to the  
minutes. Pressing the D  
button in the range of 00 to 29  
resets the seconds count  
without changing the minutes.  
hold down the A button  
for about two seconds.  
Use the C button to select each of the settings and the D  
and B buttons to change them.  
This will cause the watch to  
beep and display the  
transmitter selection mode  
setting screen.  
3.  
Use the C and A buttons  
so the setting you want to  
change is flashing on the  
display.  
8.  
When the settings are the  
way you want, press the  
A button.  
A Button  
(Back)  
Use the C button to cycle  
through the settings shown  
below. Each press of the C  
button causes the next setting  
to flash.  
6.  
While the hour, minutes,  
year, month, or day setting  
is flashing, use the D (+)  
and B (–) buttons to  
Displays the setting screen.  
Changes from the first  
This exits the setting screen.  
setting group to the next.  
Exits the setting screen.  
change the setting.  
The display also will exit the setting screen automatically if  
you do not perform any operation for about two or three  
minutes.  
B Button  
12/24-hour  
Seconds  
Scrolls back through the  
options at the flashing  
(selected) setting.  
Hour  
Minute  
(Forward)  
Holding down either button  
changes the setting at high  
speed.  
timekeeping  
FREQUENCY (Frequency)  
C Button  
When setting the hour, make sure you specify AM (A) or PM  
(P) correctly, or that you specify the correct 24-hour time.  
You can set a date in the range of January 1, 2000 to  
December 31, 2099.  
The day of the week is set automatically in accordance with  
the date you set.  
The watch automatically makes adjustments for leap years  
and month lengths.  
Moves the flashing  
between settings.  
Day  
Month  
Year  
Power Saving  
D Button  
Scrolls forward through the  
options at the flashing  
(selected) setting.  
4.  
While the 12/24-hour  
timekeeping setting is  
flashing, press the D  
button to select the  
setting you want.  
Pressing the  
D
button toggles  
the timekeeping format between  
12-hour (“12H” indicator) and  
24-hour (“24H” indicatDoro).wnload from Www.Somanuals.com. All Manuals Search And Download.  
8
Operation Guide 2839  
To search for Time Stamp data  
To delete all Time Stamp records  
Viewing Time Stamp (Time Memo) Data  
Use the C button to enter the Recall Mode. The Time Stamp function lets you store up to 30 records of time data (month, day, hour,  
minute, second). Time Stamp records serve as helpful memos when you need to remember the current date and time for some reason.  
(Hold)  
Record Number  
In the Recall Mode, use the  
D (+) and B (–) buttons to  
scroll through Time Stamp  
records.  
In the Recall Mode, hold  
down the A button for two or  
three seconds  
(Back)  
This deletes all Time Stamp  
records.  
Note that you cannot delete  
individual Time Stamp  
records.  
Holding down either button  
scrolls at high speed.  
To create a Time Stamp record  
To view Time Stamp records  
In the Timekeeping Mode, hold down the B button for about one  
second to create and store a Time Stamp record.  
Enter the Recall Mode when you want to view Time Stamp  
records. The record that was on the display the last time you  
exited the Recall Mode appears first.  
(Forward)  
B Button  
Scrolls in the direction of  
newer records.  
Timekeeping Mode  
Record Number  
Timekeeping Mode  
Recall Mode  
A Button  
Hold down to delete all  
records.  
D Button  
Mode Indicator  
Scrolls in the direction of  
older records.  
(Twice)  
About two  
seconds  
9
 

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