Casio Watch M00801 EA User Manual

MO0801-EA  
Operation Guide 4719  
Getting Acquainted  
Congratulations upon your selection of this CASIO watch. To get the most out of your  
purchase, be sure to read this manual carefully.  
The actual level at which some functions are disabled depends on the watch model.  
Be sure to read “Power Supply” for important information you need to know  
when exposing the watch to bright light.  
Keep the watch exposed to bright light  
The electricity generated by the solar cell of the watch is  
If the analog hands aren’t moving...  
If the analog hands aren’t moving, it means that the power saving mode has stopped  
them to save battery power.  
See “Power Saving” for more information.  
The hands also stop when the watch’s battery runs down.  
Bright light  
stored by a built-in battery. Leaving or using the watch  
where it is not exposed to light causes the battery to run  
down. Make sure the watch is exposed to light as much as  
possible.  
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When you are not wearing the watch on your wrist,  
position the face so it is pointed at a source of bright  
light.  
Solar cell  
About This Manual  
Stopwatch 1/20 second hand  
Button operations are indicated using the letters shown  
in the illustration.  
You should try to keep the watch outside of your sleeve  
as much as possible. Even if the face of the watch is  
blocked only partially from light, charging will be reduced  
significantly.  
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.  
Minute hand  
Hour hand  
The watch continues to operate, even when it is not exposed to light. Leaving the  
watch in the dark can cause the battery to run down, which will result in some watch  
functions to be disabled. If the battery goes dead, you will have to re-configure watch  
settings after recharging. To ensure normal watch operation, be sure to keep it  
exposed to light as much as possible.  
Battery charges in the light.  
Solar cell  
Battery discharges in the dark.  
Date  
24-hour hand  
Second hand  
(Converts light to  
electrical power.)  
Bright light  
Some functions disabled.  
Stopwatch  
minute hand  
Electrical  
energy  
(Timekeeping/  
Stopwatch)  
All  
functions  
enabled.  
LEVEL 1  
LEVEL 2  
LEVEL 1  
LEVEL 2  
Dis-  
charge  
Charge  
Rechargeable battery  
General Guide  
Press C to change from mode to mode.  
Stopwatch Mode  
Dual Time Mode  
About 1.5 seconds after you enter the Dual Time Mode, Alarm Mode, or Hand  
Setting Mode the hands will move the position that indicates the current setting of  
the mode.You cannot change to another mode while the hands are moving. To  
change to another mode, either press C before the hands start to move, or wait  
until the hands stop before pressing C.  
In the Timekeeping Mode (except when a setting screen is on the display), press B  
to illuminate the face of the watch.  
Timekeeping Mode  
Hand Setting Mode  
Alarm Mode  
Press C.  
Radio-controlled Atomic Timekeeping  
3. Press A to exit the setting screen.  
This watch receives a time calibration signal and updates its time setting accordingly.  
The time calibration signal includes both Standard Time and Daylight Saving Time  
(summer time) data.  
The second hand will advance at high speed to the correct position and resume  
normal movement from there.  
Normally, your watch should show the correct time as soon as you specify your  
Home Time Zone. If it does not, it should adjust automatically after the next auto  
receive operation (in the middle of the night).You also can perform manual receive  
or you can set the time manually.  
Supported time calibration signals: Germany (Mainflingen), England (Anthorn).  
See the information under “Signal Reception Troubleshooting” if you experience  
problems with time calibration signal reception.  
Selecting +0.0, +1.0, or +2.0 (+1.0, +2.0, or +3.0 while DST is turned on) as your  
Home Time Zone automatically turns on auto receive. When auto receive is turned  
on and you are within the reception range, the watch will receive the time calibration  
signal from the applicable transmitter automatically (in the middle of the night) and  
update its settings accordingly. For information about the relationship between time  
zones (GMT differential values) and transmitters, see “Transmitters”.  
See the maps under “Approximate Reception Ranges” for information about the  
reception ranges of the watch.  
If you are in an area that does not use Daylight Saving Time (summer time), turn off  
the DST setting.  
Even if the time calibration signal is received correctly, there are some times when  
the analog hands may not indicate the correct time. If this happens, use the  
procedures under “Adjusting the Home Positions” to check the home positions of the  
hands, and make adjustments as required.  
Current Time Setting  
This watch adjusts its time setting automatically in accordance with a time calibration  
signal.You also can perform a manual procedure to set the time and date, when  
necessary.  
The first thing you should do after purchasing this watch is to specify your  
Home Time Zone, which is the time zone where you normally will use the  
watch. For more information, see “To specify your Home Time Zone” below.  
When using the watch outside the range of the time signal transmitter, you have to  
adjust the current time setting manually as required. See “Timekeeping” for more  
information about manual time settings.  
To specify your Home Time Zone  
1. In the Timekeeping Mode, hold down A until the GMT  
DST indicator  
differential value starts to flash, which indicates the  
setting screen.  
The GMT differential value indicates the time  
difference in hours between Greenwich Mean Time  
and the currently selected time zone.  
Time Calibration Signal Reception  
There are two different methods you can use to receive the time calibration signal:  
auto receive and manual receive.  
The second hand will move at high speed to the 12  
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Auto Receive  
o’clock position, where it will stop.  
The DST indicator indicates that Daylight Saving Time  
(summer time) is turned on for the currently selected  
time zone.  
With auto receive, the watch receives the time calibration signal automatically up to six  
times a day. When any auto receive is successful, the remaining auto receive  
operations are not performed. For more information, see “About Auto Receive”.  
2. Use B (+) to select the time zone you want to use as  
your Home Time Zone.  
The following are the GMT differential values for major  
cities in the Western Europe time zones.  
Manual Receive  
GMT differential  
value  
Manual receive lets you start a time calibration receive operation with the press of a  
button. For more information, see “To perform manual receive”.  
Important!  
When getting ready to receive the time calibration signal, position the watch as  
shown in the nearby illustration, with its 12 o’clock side facing towards a window.  
This watch is designed to receive a time calibration signal late at night. Because of  
this, you should place the watch near a window as shown in the illustration when you  
take it off at night. Make sure there are no metal objects nearby.  
Time Zone  
Major cities in the time zone  
London, Dublin, Lisbon, Casablanca,  
Dakar, Abidjan  
Paris, Milan, Rome, Madrid,  
+0.0 (DST +1.0)  
+1.0 (DST +2.0) Amsterdam, Algiers, Hamburg,  
Frankfurt, Vienna, Stockholm, Berlin  
Athens, Cairo, Jerusalem, Helsinki,  
+2.0 (DST +3.0)  
12 o’clock  
or  
Istanbul, Beirut, Damascus,  
Cape Town  
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Operation Guide 4719  
Illumination  
An LED (light-emitting diode) illuminates the face of the  
To toggle a time zone between Standard Time and Daylight Saving Time  
1. In the Dual Time Mode, use B to display the time zone  
whose Standard Time/Daylight Saving Time setting you  
want to change.  
watch for easy reading in the dark. The watch’s auto light  
switch turns on illumination automatically when you angle  
the watch towards your face.  
The auto light switch must be turned on for it to operate.  
See “Illumination Precautions” for other important  
information.  
2. Hold down A to toggle between Daylight Saving Time  
(DST indicator displayed) and Standard Time (DST  
indicator not displayed).  
Turning on DST causes the GMT differential value to be  
To illuminate the face of the watch  
increased by one.  
In the Timekeeping Mode (except when a setting screen is  
on the display), press B to illuminate the face of the  
watch for about one second.  
DST indicator  
The above operation turns on illumination regardless of  
the current auto light switch setting.  
The DST indicator appears on the display whenever you display a time zone for  
which Daylight Saving Time is turned on.  
The DST/Standard Time setting you configure affects only the currently displayed  
time zone. Other time zones are not affected.  
About the Auto Light Switch  
Turning on the auto light switch causes the face to illuminate, whenever you position  
your wrist as described below in any mode. Note that this watch features a “Full Auto  
LED Light”, so the auto light switch operates only when available light is below a  
certain level. It does not illuminate the display under bright light.  
The auto light switch is always disabled, regardless of its on/off setting, when any  
one of the following conditions exists.  
The (GMT: Greenwich Mean Time) time zone cannot be switched between  
Standard Time and Daylight Saving Time.  
Alarm  
When an alarm is sounding  
When the alarm is turned on, the alarm sounds when the  
alarm time is reached.  
All of the operations in this section are performed in the  
Alarm Mode, which you enter by pressing C.  
Alarm time minute hand  
While an auto receive operation is in progress  
While a button is depressed  
Alarm time 24-  
hour hand  
Moving the watch to a position that is parallel to the ground and then tilting it  
towards you at more than 40 degrees causes illumination to turn on.  
Wear the watch on the outside of your wrist.  
To set an alarm time  
1. In the Alarm Mode, hold down A for about two  
display the setting mode.  
seconds to  
2. Use B to change the alarm time.  
Each press of B moves the hands clockwise in one-  
minute steps.  
Parallel to  
ground  
More than  
40°  
3. After setting the alarm time, press A to exit the setting  
mode.  
Setting the alarm time causes the alarm to turn on  
automatically.  
Alarm time  
hour hand  
On/Off status  
Warning!  
Always make sure you are in a safe place whenever you are reading the face  
of watch using the auto light switch. Be especially careful when running or  
engaged in any other activity that can result in accident or injury. Also take  
care that sudden illumination by the auto light switch does not startle or  
distract others around you.  
When you are wearing the watch, make sure that its auto light switch is turned  
off before riding on a bicycle, or operating a motorcycle or any other motor  
vehicle. Sudden and unintended operation of the auto light switch can create a  
distraction, which can result in a traffic accident and serious personal injury.  
Alarm Operation  
The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the  
watch is in.  
Alarm operations are performed in accordance with the Timekeeping Mode time.  
Pressing any button stops the alarm tone operation.  
To toggle an alarm on and off  
In the Alarm Mode, press B to toggle the alarm on (ON) and off (OF).  
The watch will beep when you turn on the alarm.  
To turn the auto light switch on and off  
In the Timekeeping Mode (except when a setting screen is on the display), hold down  
B for about three seconds to toggle the auto light switch on and off.  
Turning on the auto light switch will cause the watch to beep. The “ON” indicator  
(ON) will appear and the light will turn on for 1.5 seconds.  
Adjusting the Home Positions  
If the time and date settings are off even after the time calibration signal is received  
normally, use the following procedure to adjust their home positions.  
You can use the procedure in this section to adjust the position of the second hand,  
the stopwatch minute hand and stopwatch 1/20 second hand whenever they do not  
align with the 12 o’clock position when you enter the Hand Setting Mode.  
Turning off the auto light switch will cause the watch to beep. The “OFF” indicator  
(OF) will appear for 1.5 seconds. The light will not turn on.  
Power Supply  
To adjust the home positions  
1. In the Timekeeping Mode, press C four times to enter  
the Hand Setting Mode.  
This watch is equipped with a solar cell and a special rechargeable battery (secondary  
battery) that is charged by the electrical power produced by the solar cell. The  
illustration shown below shows how you should position the watch for charging.  
Second hand  
2. In the Hand Setting Mode, hold down A until 0 0 starts  
to flash, which indicates the analog setting screen.  
The second hand is at the proper home position if it  
moves to 12 o’clock. If it doesn’t, press B to move it  
to 12 o’clock.  
Example: Orient the watch so its face is  
pointing at a light source.  
Solar cell  
The illustration shows how to position  
a watch with a resin band.  
3. After confirming that the second hand is at the proper  
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home position, press C. This will switch to hour hand  
and minute hand home position adjustment (Hm  
flashes).  
The hour hand and minute hand are at their proper  
home positions if they both move to 12 o’clock, and if  
the 24-hour hand is pointing at hour 24. If the hands  
are not positioned correctly, use B to move them to  
their proper home positions.  
Note that charging efficiency drops  
when any part of the solar cell is  
blocked by clothing, etc.  
You should try to keep the watch  
outside of your sleeve as much as  
possible. Even if the face of the watch  
is blocked from light only partially,  
charging will be reduced significantly.  
Minute hand  
Hour hand  
4. After confirming that the hour hand and minute hand  
are both at their proper home positions, press C.  
This will switch to stopwatch 1/20 second hand home  
position adjustment (20 flashes).  
Important!  
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Storing the watch for long periods in an area where there is no light or wearing it in  
such a way that it is blocked from exposure to light can cause rechargeable battery  
power to run down. Make sure that the watch is exposed to bright light whenever  
possible.  
The stopwatch 1/20 second hand is at the proper  
24-hour  
hand  
home position if it moves to 0. If it doesn’t, use B to  
move it to 0.  
This watch uses a special rechargeable battery to store power produced by the solar  
cell, so regular battery replacement is not required. However, after very long use, the  
rechargeable battery may lose its ability to achieve a full charge. If you experience  
problems getting the special rechargeable battery to charge fully, contact your dealer  
or CASIO distributor about having it replaced.  
Never try to remove or replace the watch’s special battery yourself. Use of the wrong  
type of battery can damage the watch.  
The current time and all other settings return to their initial factory defaults whenever  
battery power drops to Level 3 and when you have the battery replaced.  
Keep the watch in an area normally exposed to bright light when storing it for long  
periods. This helps to keep the rechargeable battery from going dead.  
Stopwatch 1/20 second hand  
5. After confirming that the stopwatch 1/20 second hand is  
at the proper home position, press C. This will switch  
to stopwatch minute hand home position adjustment  
(60 flashes).  
The stopwatch minute hand is at the proper home  
position if it moves to 60. If it doesn’t, use B to move  
it to 60.  
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6. Press A to exit the setting screen.  
After you complete the home position adjustment  
procedure, place the watch in a location that allows  
good time calibration signal reception, and then perform  
a manual receive operation. See “To perform manual  
receive” for more information.  
Stopwatch minute hand  
Battery Power Levels  
Battery power level is indicated by hand movement and a display indicator.  
Hand Movement/  
Display Indicator  
Level  
Function Status  
1
2
Normal  
All functions enabled.  
Second hand jumps  
every two seconds.  
LO displayed.  
Illumination, alarm and  
signal reception disabled.  
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3
All hands stopped.  
Display is blank.  
All functions disabled.  
Jumps 2 seconds  
Battery level is very low when the second hand jumps every two seconds and the  
display shows LO. Expose the watch to light and charge the battery as soon as  
possible.  
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Operation Guide 4719  
When battery power is at Level 2, time calibration signal reception is disabled.  
2. Use B to select the time zone you want to use as your Home Time Zone.  
For full details about GMT differential values, see the “Time Zone Table”.  
3. Press C to move the flashing in the sequence shown below to select other  
settings.  
Alarm operation can cause hand movement to stop due to the sudden temporary  
drop in battery power. This does not indicate malfunction, and normal operation will  
resume when the watch is exposed to light.Though hand movement stops,  
timekeeping continues internally, and the hands will be adjusted to the correct  
setting when normal operation returns.  
GMT differential  
Minutes  
Year  
DST  
value  
At Level 3, all functions are disabled and settings return to their initial factory  
defaults. Functions are enabled once again after the rechargeable battery is  
charged, but you need to set the time and date, after the battery reaches Level 1  
from Level 3.  
Day  
Month  
Leaving the watch in direct sunlight or some other very strong light source can  
cause the battery power indication to show a reading that is momentarily higher than  
the actual battery level. The correct battery power indication should appear after a  
few minutes.  
4. When the setting you want to change is flashing, use B to change it as described  
below.  
Screen To do this:  
Change the time zone  
Do this:  
Press B.  
Charging Precautions  
Certain charging conditions can cause the watch to become very hot. Avoid leaving  
the watch in the areas described below whenever charging its rechargeable battery.  
Toggle between Daylight Saving Time ( ), Press B.  
Standard Time ( ), or Auto DST (  
)
Change the minutes (time)  
Press B.  
Press B.  
Warning!  
Leaving the watch in bright light to charge its rechargeable battery can cause it  
to become quite hot.Take care when handling the watch to avoid burn injury.  
The watch can become particularly hot when exposed to the following  
conditions for long periods.  
Change the year  
Change the month  
Change the day  
Press B.  
Press B.  
On the dashboard of a car parked in direct sunlight  
Too close to an incandescent lamp  
Under direct sunlight  
5. Press A to exit the setting screen.  
Charging Guide  
When you exit the setting screen, the analog hands are adjusted automatically to  
After a full charge, timekeeping remains enabled for up to about eight months.  
The following table shows the amount of time the watch needs to be exposed to light  
each day in order to generate enough power for normal daily operations.  
match the digital time.  
Auto DST ( ) can be selected only while +0.0, +1.0, or +2.0 (+1.0, +2.0, or +3.0  
while DST is turned on) is selected as the Home Time Zone. For more information,  
see “Daylight Saving Time (DST)” below.  
Exposure Level (Brightness)  
Outdoor sunlight (50,000 lux)  
Approximate Exposure Time  
8 minutes  
Daylight SavingTime (DST)  
Sunlight through a window (10,000 lux)  
30 minutes  
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.  
Daylight through a window on a cloudy day  
(5,000 lux)  
48 minutes  
The time calibration signals 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 signal it receives.  
The auto DST setting can be turned on only while +0.0, +1.0, or +2.0 (+1.0, +2.0, or  
+3.0 while DST is turned on) is selected as the Home Time Zone.  
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.  
Indoor fluorescent lighting (500 lux)  
8 hours  
Since these are the specs, we can include all the technical details.  
Watch is not exposed to light  
Internal timekeeping  
Analog hands operational 18 hours per day, sleep state 6 hours per day  
10 seconds of alarm operation per day  
1 illumination operation (1.5 seconds) per day  
1 time calibration reception per day  
To change the Daylight Saving Time (summer time) setting  
1. In the Timekeeping Mode, hold down A until the GMT differential value starts to  
flash, which indicates the setting screen.  
2. Press C to display the DST setting screen.  
3. Press B to cycle through the DST settings in the sequence shown below.  
Stable operation is promoted by frequent charging.  
RecoveryTimes  
The table below shows the amount exposure that is required to take the battery from  
one level to the next.  
Auto DST (  
)
DST off (  
)
DST on (  
)
Exposure Level  
(Brightness)  
Approximate Exposure Time  
Level 3  
Level 2  
Level 1  
4. Press A to exit the setting screen.  
Outdoor sunlight (50,000 lux)  
2 hours  
5 hours  
27 hours  
The DST indicator appears on the display to indicate that Daylight Saving Time is  
turned on.  
Sunlight through a window  
(10,000 lux)  
133 hours  
– – –  
Turning on DST causes the GMT differential value to be increased by one.  
The (GMT: Greenwich Mean Time) time zone cannot be switched between  
Standard Time and Daylight Saving Time.  
Daylight through a window on  
a cloudy day (5,000 lux)  
9 hours  
Indoor fluorescent lighting  
(500 lux)  
109 hours  
– – –  
Reference  
The above exposure time values are all for reference only. Actual required exposure  
times depend on lighting conditions.  
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.  
Timekeeping  
Power Saving  
Power Saving enters a sleep state automatically whenever the watch is left for a  
certain period in an area where it is dark. The table below shows how watch functions  
are affected by Power Saving.  
Use the Timekeeping Mode to set and view the current  
time and date. This section also explains how to set the  
current date and time manually.  
All of the operations in this section are performed in the  
Timekeeping Mode, which you enter by pressing C.  
Hour hand  
Minute hand  
There actually are two sleep state levels: “second hand sleep” and “function sleep”.  
Elapsed Time in Dark  
Operation  
60 to 70 minutes  
(second hand sleep)  
Second hand is stopped and display is blank. All other  
functions are enabled.  
6 or 7 days  
All functions, including analog timekeeping, disabled  
Internal timekeeping maintained  
Date  
24-hour hand  
(function sleep)  
Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state.  
The watch will not enter the sleep state between 6:00 AM and 9:59 PM. If the watch  
is already in the sleep state when 6:00 AM arrives, however, it will remain in the  
sleep state.  
Second hand  
Setting the Time and Date Manually  
Make sure you select your Home Time Zone before you change the current time and  
date settings. Dual Time Mode times are all displayed in accordance with the  
Timekeeping Mode settings. Because of this, Dual Time Mode times will not be correct  
if you do not select the proper Home Time Zone before setting the time and date in the  
Timekeeping Mode.  
When setting the time and date, you also can configure settings for your Home Time  
Zone (the time zone where you normally use the watch) and summer time (Daylight  
Saving time or DST).  
To recover from the sleep state  
Perform any one of the following operations.  
Move the watch to a well-lit area.  
Press any button.  
Auto Return Features  
If you leave the watch in the Alarm or Hand Setting Mode for two or three minutes  
without performing any operation, it returns to the Timekeeping Mode automatically.  
If you do not perform any operation for about two or three minutes while a setting  
mode is selected, the watch will exit the setting mode automatically.  
To set the time and date manually  
1. In the Timekeeping Mode, hold down A until the GMT  
differential value starts to flash, which indicates the  
setting screen.  
DST indicator  
Scrolling  
The B button is used to change the hand setting in various setting modes. In most  
cases, holding down this button will start high-speed movement of the applicable  
hand(s).  
The second hand will move at high speed to the 12  
o’clock position, where it will stop.  
High-speed movement of hands will continue until you press any button, or until the  
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moving hand(s) finishes one complete cycle.  
GMT differential value  
: +2.0 : –4.0  
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- One complete cycle for the hands is one revolution (360 degrees) or 24 hours.  
Minus sign  
The GMT differential value indicates the time difference in hours between  
Greenwich Mean Time and the currently selected time zone.  
The DST indicator indicates that Daylight Saving Time (summer time) is turned on  
for the currently selected time zone.  
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Operation Guide 4719  
See “Stopwatch” for details about using the stopwatch.  
Radio-controlled Atomic Timekeeping Precautions  
Strong electrostatic charge can result in the wrong time being set.  
The time calibration signal bounces 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.  
The tachymeter can be used only when you are traveling by car or some other  
means that can cover one kilometer or one mile within 60 seconds.  
Time Zone Table  
GMT Differential Value  
Standard Time DST/Summer Time  
Even if the time calibration signal is received properly, certain conditions can  
cause the time setting to be off by up to one second.  
Major Cities in Same Time Zone  
–11.0  
–10.0  
–9.0  
DST –10.0  
DST –9.0  
DST –8.0  
DST –7.0  
Pago Pago  
Honolulu, Papeete  
Anchorage, Nome  
Los Angeles, San Francisco, Las Vegas, Vancouver,  
Seattle/Tacoma, Dawson City, Tijuana  
The current time setting in accordance with the time calibration signal takes  
priority over any time settings you make manually.  
The watch is designed to update the date and day of the week automatically for  
the period January 1, 2000 to December 31, 2099. Setting of the date by the  
time calibration signal will not be performed starting from January 1, 2100.  
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.  
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 current Home Time Zone, and  
DST (summer time).  
–8.0  
–7.0  
–6.0  
DST –6.0  
DST –5.0  
Denver, El Paso, Edmonton, Culiacan  
Chicago, Houston, Dallas/Fort Worth, New Orleans,  
Mexico City, Winnipeg  
–5.0  
DST –4.0  
New York, Montreal, Detroit, Miami, Boston,  
Panama City, Havana, Lima, Bogota  
–4.0  
–3.0  
DST –3.0  
DST –2.0  
Caracas, La Paz, Santiago, Port of Spain  
Rio De Janeiro, Sao Paulo, Buenos Aires, Brasilia,  
Montevideo  
–2.0  
–1.0  
G 0.0  
+0.0  
+1.0  
DST –1.0  
DST +0.0  
G 0.0  
DST +1.0  
DST +2.0  
Praia  
(GMT)  
Transmitters  
London, Dublin, Lisbon, Casablanca, Dakar, Abidjan  
Paris, Milan, Rome, Madrid, Amsterdam, Algiers,  
Hamburg, Frankfurt, Vienna, Stockholm, Berlin  
This watch is designed to receive the time calibration signal transmitted from  
Mainflingen, Germany and the signal from Anthorn, England.You can configure the  
watch to select the transmitter that has the strongest signal automatically.  
+2.0  
+3.0  
DST +3.0  
DST +4.0  
Cairo, Jerusalem, Athens, Helsinki, Istanbul, Beirut,  
Damascus, Cape Town  
Jeddah, Kuwait, Riyadh, Aden, Addis Ababa, Nairobi,  
Moscow  
In this case:  
The watch does this:  
The first signal auto search operation  
1. Checks the Mainflingen signal first.  
after factory default settings are in effect, 2. If the Mainflingen signal cannot be  
+3.5  
+4.0  
+4.5  
+5.0  
+5.5  
+6.0  
+6.5  
+7.0  
+8.0  
DST +4.5  
DST +5.0  
DST +5.5  
DST +6.0  
DST +6.5  
DST +7.0  
DST +7.5  
DST +8.0  
DST +9.0  
Tehran, Shiraz  
Dubai, Abu Dhabi, Muscat  
Kabul  
Karachi, Male  
Delhi, Mumbai, Kolkata, Colombo  
Dhaka  
Yangon  
or after the time zone has been changed  
received, checks the Anthorn signal.  
Any case other than the above.  
1. Checks the last successfully received  
signal first.  
2. If the last successfully received signal  
cannot be received, checks the other  
signal.  
Bangkok, Jakarta, Phnom Penh, Hanoi, Vientiane  
Hong Kong, Singapore, Kuala Lumpur, Beijing, Taipei,  
Manila, Perth, Ulaanbaatar  
Timekeeping  
The year can be set in the range of 2000 to 2099.  
The watch’s built-in full automatic calendar makes allowances for different month  
lengths and leap years. Once you set the date, there should be no reason to change  
it except after you have the watch’s battery replaced.  
The date will change automatically when the current time reaches midnight. The  
date change at the end of the month may take more time than normal.  
The current time for all time zones in the Timekeeping Mode and Dual Time Mode is  
calculated in accordance with the Greenwich Mean Time (GMT) differential of each  
zone, based on your Home Time Zone time setting.  
+9.0  
+9.5  
+10.0  
+11.0  
+12.0  
DST +10.0  
DST +10.5  
DST +11.0  
DST +12.0  
DST +13.0  
Tokyo, Seoul, Pyongyang  
Adelaide, Darwin  
Sydney, Melbourne, Guam, Rabaul  
Noumea, Port Vila  
Wellington, Christchurch, Nadi, Nauru Island  
Based on data as of June 2007.  
GMT differential is calculated by this watch based on Universal Time Coordinated  
(UTC*) data.  
* UTC is the world-wide scientific standard of timekeeping. It is based upon carefully  
maintained atomic (cesium) clocks that keep time accurately to within  
microseconds. Leap seconds are added or subtracted as necessary to keep UTC  
in sync with the Earth’s rotation. The reference point for UTC is Greenwich,  
England.  
Illumination Precautions  
The illumination provided by the light may be hard to see when viewed under direct  
sunlight.  
Illumination automatically turns off whenever an alarm sounds.  
Frequent use of illumination shortens the battery operating time.  
Auto light switch precautions  
Wearing the watch on the inside of your wrist, movement of your arm, or vibration of  
your arm can cause frequent activation of the auto light switch and illuminate the  
face of the watch. To avoid running down the battery, turn off the auto light switch  
whenever engaging in activities that might cause frequent illumination of the face.  
Note that wearing the watch under your sleeve while the auto light switch is turned  
on can cause frequent illumination of the face and can run down the battery.  
Illumination may not turn on if the face of the watch is  
More than 15 degrees  
too high  
more than 15 degrees above or below parallel. Make  
sure that the back of your hand is parallel to the ground.  
Illumination turns off in about one second, even if you  
keep the watch pointed towards your face.  
Static electricity or magnetic force can interfere with  
proper operation of the auto light switch. If illumination  
does not turn on, try moving the watch back to the  
starting position (parallel with the ground) and then tilt it  
back towards your face again. If this does not work, drop  
your arm all the way down so it hangs at your side, and  
then bring it back up again.  
Under certain conditions, illumination may not turn on until about one second after  
you turn the face of the watch towards you. This does not necessarily indicate  
malfunction of the auto light switch.  
You may notice a very faint clicking sound coming from the watch when it is shaken  
back and forth. This sound is caused by mechanical operation of the auto light  
switch, and does not indicate a problem with the watch.  
Tachymeter  
If your watch has a tachymeter bezel, you can perform the  
Tachymeter bezel  
steps below to calculate average speed after using the  
60  
H
Stopwatch Mode to measure the amount of time that it  
takes to travel one kilometer (or one mile).  
Never try to perform stopwatch operations while you  
are driving an automobile, riding a bicycle, or  
operating any type of vehicle. Doing so is very  
dangerous and can result in accident.  
1
0
0
1 In the Stopwatch Mode, start an elapsed time  
operation at any point you like.  
150  
120  
2 Stop the elapsed time operation after you travel one  
kilometer or one mile.  
3 Your average speed will be the value that the second  
hand is pointing to on the tachymeter bezel.  
The illustration shows an example where it took 50 seconds to travel one kilometer  
by car. The second hand is pointing at 70, which indicates that the average speed is  
70 kilometers per hour.  
5
 

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