MA0410-EA
Operation Guide 3760
Modes and Display Screens
Each press of the C button sounds a confirmation tone and cycles through available modes in the sequence shown below.
World Time Mode
Alarm Mode
•
The display will automatically revert to the Timekeeping screen if you leave the Alarm or Hand Setting screen displayed without performing
any operation for about two or three minutes.
Timekeeping Mode
Alarm
Hourly Time Signal
City Code
Changing Display Screen Contents
Each press of the
following sequence: Day of the Week ➡ Date ➡ Seconds ➡
Current Time
button cycles display contents in the
(Light)
(Screen Switching)
Button
Button
Current Time in Selected City
• Alarm off
• Hourly Time Signal off
Day of the week
Date
Button
(Mode switching)
Button
Day of the week
Month/Day
Hand Setting Mode
Stopwatch Mode
Days of the Week
Current Time Screen
PM indicator
(no indicator for AM)
Seconds Screen
SUN: Sunday
MON: Monday TUE: Tuesday
Mode Indicator
WED: Wednesday THU: Thursday FRI: Friday
SAT: Saturday
Hour
Minutes
Seconds
Elapsed Time
Mode Indicator
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 selecting a Home City, see “Configuring Home City Settings”. For information about city codes, see the “World Time
City Code List”.
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 National Institute of Information and Communications
Technology (NICT). 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.
Home City
TYO
Transmitter
Either the Mt. Otakadoya signal (40kHz) or the Mt. Hagane signal (60kHz)
Fort Collins, Colorado signal
Signal is received
using built-in antenna.
LAX, DEN, CHI, NYC
Long-wave
time
calibration
signal
Transmitter
•
The U.S. calibration signal (Call Sign: WWVB) is transmitted by
the National Institute of Standards and technology from Fort
Collins, Colorado.
U.S. Transmitter
Location
1000km
Japan Transmitter
Locations
Watch decodes
received data
and converts it
to time data.
Signal data
Decode
3000km
Note that transmission of the time calibration signal may be
interrupted occasionally due to maintenance, lightning, etc.
Mt. Otakadoya
(40kHz)
500km
1000km
500km
Time data
Internally
Mt. Hagane
(60kHz)
Time is adjusted
according to
time data.
Cesium
atomic clock
Watch
Fort Collins
1000km
Under optimum conditions, the calibration signal should be
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.
•
Under optimum conditions, the calibration signal should be
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.
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.
•
•
Geographic contours, nearby buildings, seasonal conditions, 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.
1
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Operation Guide 3760
Calibration Signal Reception
Precautions
Troubleshooting
Time calibration signal reception is successful, but the hourly
time signal and current time are slightly off.
The watch cannot receive the time calibration signal.
•
Auto reception can be performed while the watch is in the
Timekeeping Mode or World Time Mode only.
•
•
This watch is designed to adjust its current time setting in
accordance with the calibration signal transmitted in Japan and
the United States only. It operates like a standard (non-radio
controlled) watch outside of the range of the receivable time
calibration signal transmitters.
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.
The watch’s calendar shows dates up to the year 2099.
Attempting a receive operation after that causes an error.
•
Is the signal being transmitted?
•
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).
Though the Japanese calibration signal (Call Sign: JJY) is
continually transmitted by the National Institute of Information and
Communications Technology (NICT) in theory, it may sometimes
be interrupted for periodic maintenance work, or because of
lightning or other problems.
Are you within the reception range of a transmitter?
See “Reception Range” for information about areas where the
watch can receive the signal.
•
When a time calibration signal is received, the watch corrects its
digital time setting first, and then adjusts the analog time setting
accordingly. In order to ensure that the analog time matches the
digital time, make sure you adjust the analog time to match the
digital time before performing signal reception.
Time calibration signal reception is successful, but the current
time is one hour fast.
•
•
•
•
Pressing 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, seasonal conditions,
the time of day, can even make reception impossible even when
you are within range of the transmitter.
•
•
•
Do you have summer time (DST) turned on (ON)?
Use the procedure under “Configuring Home City Settings” to turn
off summer time.
Is there something in the immediate area that may be interfering
with reception?
•
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.
•
Proper reception may be impossible if there is something blocking
the signal. If reception is unsuccessful, try again.
•
Is the correct city code selected for 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 “Configuring Home
City Settings”.
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 “Configuring Home City Settings”.
•
•
Is auto receive turned off (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 (midnight, 2:00
a.m., 3:00 a.m., 4:00 a.m., and 5:00 a.m.)?
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.
The digital time and analog time are different.
How can I perform manual receive?
•
Normally, the received time calibration data is used to adjust the
digital display time, and then the analog hands are adjusted to
match the digital time. If the hands are misaligned for some
reason, they will not indicate the correct time. If this happens, use
the procedure under “Adjusting the Analog Time Setting” to adjust
the analog time.
•
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.
Face Illumination
Pressing the B button in any mode (except when a flashing
setting screen is displayed) illuminates the face of the watch for
easy reading in the dark.
2.
3.
Press the C button three
times to display the
flashing seconds count.
How can I view the last reception date and time?
•
You can use the procedure under
“To specify illumination duration”
to configure the illumination
duration as approximately
•
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. See “To view the last reception date
and time” for more information.
The auto receive ON/OFF settings don’t appear when
configuring auto receive settings.
•
Auto receive ON/OFF settings do not appear on the display
unless TYO (Japan), NYC (New York), CHI (Chicago), DEN
(Denver), or LAX (Los Angeles) is selected as the Home City. Use
the procedure under “Configuring Home City Settings” to select
your correct Home City.
(3 times)
1.5 seconds or 3 seconds.
Seconds
•
•
Check the auto signal reception setting whenever you have
problems with signal reception or when the time setting produced
by signal reception is incorrect.
The initial factory default configuration of the reception settings
are shown below. You do not need to change these settings if you
use the watch in Japan.
Press the B button to
toggle the illumination
duration between about
1.5 seconds ( indicator)
and 3 seconds
The auto receive AUTO, 40, and 60 settings do not appear when
configuring auto receive settings.
Important!
•
The light may be difficult to see if you turn it on under bright
sunlight.
If you press a button that sounds a confirmation tone to sound or
if an alarm operation starts while the face is illuminated,
illumination will turn off.
Illumination is disabled while a manual time calibration signal
receive operation is in progress.
•
The AT, JP40, and JP60 transmitter selection mode options are
available only when TYO (Tokyo) is selected as the Home City
code. Use the procedure under “Configuring Home City Settings”
to select your correct Home City.
(
indicator).
•
Auto Japan transmitter select
(40kHz/ 60kHz)
Auto Receive
Home City
•
What time is auto receive performed?
Tokyo
•
Auto receive is performed in the middle of the night, when
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.
4.
After the setting is the way you want, press the A
button to exit the setting screen.
❚
To specify illumination duration
Auto switching in accordance
with signal data
Summer Time
1.
In the Timekeeping Mode,
hold down the A button
for about two seconds.
•
The watch will also exit the setting screen automatically if you
do not perform any operation for about two or three minutes.
•
This will cause your Home
City code to flash on the
display.
Home City Code
3
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Operation Guide 3760
Using Summer Time (DST)
World Time City Code List
World Time Mode
World Time lets you display the current time in any one of 30 cities
(29 time zones) around the world.
Summer time, or Daylight Saving Time (DST) as is it is known in
some countries, calls for setting clocks ahead one hour during the
summer season. Note that the use of summer time depends on
City
GMT
City
GMT
City Name
City Name
Code Differential
– – – –11
HNL –10
Code Differential
JRS
JED
THR
DXB
KBL
KHI
+2
+3
Jerusalem
Jeddah
Teheran
Dubai
❚
To search for a city code
In the World Time Mode, press the D button.
the country and even the local area.
•
•
•
When you enter the World Time Mode, the screen for the city that
was displayed when you last exited the mode appears first.
The seconds count in the World Time Mode is linked with the
Timekeeping Mode seconds count.
Honolulu
Anchorage
Los Angeles
Denver
•
This scrolls westward through the available city codes. A short
while after a city code appears, the display will change to show
the current time in that city.
❚
To turn summer time on or off
ANC
LAX
DEN
CHI
–9
–8
–7
–6
–5
–4
–3
–2
–1
+0
+0
+1
+1
+2
+2
+3.5
+4
1.
In the World Time Mode,
use the D button to
display the screen for the
city code whose summer
time setting you want to
change.
•
Holding down the D button scrolls at high speed.
The same 12-hour/24-hour format you select for the Timekeeping
Mode time is also applied in the World Time Mode.
+4.5
+5
Kabul
City Code
Chicago
Karachi
Delhi
NYC
CCS
RIO
New York
Caracas
DEL
DAC
+5.5
+6
Important!
If the World Time Mode time is incorrect, correct the setting of the
current time or change to another Home City in the Timekeeping
Mode.
Dakar
Rio de Janeiro RGN +6.5
Yangon
Bangkok
Hong Kong
Seoul
(Westward)
2.
Hold down the A button
for about two seconds.
•
For information about configuring timekeeping settings, see
“Configuring Home City Settings”.
– – –
– – –
GMT
LON
PAR
BER
ATH
CAI
BKK
HKG
+7
+8
Current Time in
Selected City
•
This toggles summer time on
and off.
The “DST” indicator appears
on the display and
timekeeping is advanced by
one hour when summer time
is turned on.
Greenwich Mean Time SEL
+9
•
•
Pressing the A button in the World Time Mode displays the city
code of the currently selected city for about two seconds.
Selecting a time zone that does not have a city code displays the
GMT time differential for that zone.
•
DST indicator
London
Paris
TYO
ADL
SYD
NOU
WLG
Tokyo
+9
+9.5
+10
+11
+12
Adelaide
Sydney
Noumea
Wellington
Berlin
Athens
Cairo
•
You can turn summer time on
or off independently for each
World Time Mode city. Note,
however, that you cannot turn
on summer time for the “GMT”
city code.
•
•
The contents of the above table are current as of December 2003.
Time differentials in the above table are in accordance with
Universal Time Coordinated (UTC).
❚
Elapsed Time Measurement
Stopwatch Mode
Start
Stop
Reset
The stopwatch measures elapsed time in units of 1/100 second up to 59 minutes 59.99 seconds (60 minutes total). When the maximum
limit is reached, the elapsed time automatically returns to zero and timing continues from there.
Pressing the A button while timing is stopped resets the stopwatch to all zeros.
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.
❚
To perform elapsed time measurement
❚
Stopwatch Mode Display Screens
•
Elapsed Time Measurement
In the Stopwatch Mode, press the D button to start and
stop elapsed time measurement.
The display shows the minutes and seconds.
❚
Split Time Measurement
Start
Pressing the A button while timing is being performed displays the split time screen, but timing continues internally.
Changing to another mode while a split time is displayed clears the split time operation.
Record Split
Clear Split
Stop
Reset
Reset
(Split/Reset)
•
❚
1st and 2nd Place Finishers
Minutes
Seconds
(Start/Stop)
Start
1st Finish
2nd finish
Displays time of 2nd finisher.
•
Paused Elapsed Time Measurement
(Displays time of 1st finisher.)
When elapsed time measurement is paused, the display alternates
between a minute/second screen and a 1/100 second screen at
2-second intervals.
Pressing the D button while the split time screen is on the display stops elapsed time measurement, and leaves the split time screen on
the display. Press the A button to exit the split time screen and display the elapsed time when the measurement was stopped.
2-second
interval
Split Time Screen
Split Indicator
Minutes Seconds
1/100 Second
The split time screen cycles alternately through the split indicator, a minute/
second screen, and a 1/100 second screen.
1/100 Second
Minutes
Seconds
4
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Operation Guide 3760
Using the Alarms and Hourly Time Signal
(Back)
(Back)
3.
Use the D (+) and B (–)
buttons to change the
hour setting.
5.
Use the D (+) and B (–)
buttons to change the
minute setting.
The watch beeps for 10 seconds when the current time in the
•
Holding down either button
changes the setting at high
speed.
When setting the hour, make
sure you specify AM (no
indicator) 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 home time
is also applied in the Alarm
Mode.
•
Holding down either button
changes the setting at high
speed.
❚
To set the alarm time
Timekeeping Mode reaches the alarm time you set.
The Hourly Time Signal causes the watch to beep every hour on
the hour.
(Forward)
1.
In the Alarm Mode, press
the D button to display
the alarm screen.
(Forward)
•
❚
To display the alarm screen
6.
When the setting is the way you want, press the A
button.
In the Alarm Mode, press the D button to toggle the display
between the alarm screen and the Hourly Time Signal
screen.
•
This exits the setting screen.
•
•
The display also will exit the setting screen automatically if
you do not perform any operation for about two or three
minutes.
2.
Hold down the A button
for about two seconds.
•
When you press the D button, the screen that was displayed
when you last pressed the D button appears first.
•
This will cause the hour digits
of the alarm time to flash.
Alarm Screen
Hourly Time Signal Screen
•
Displaying the setting screen
automatically turns on the
alarm.
4.
Press the C button to
select the minute setting.
Hour
•
This causes the minute digits
to flash.
• Alarm off
• Hourly Time Signal off
Minutes
❚
To turn the alarm on or off
❚
To turn the hourly time signal on or off
Configuring Home City Settings
1.
In the Alarm Mode, use the D button to display the
alarm screen.
1.
In the Alarm Mode, use the D button to display the
Hourly Time Signal screen.
Home City settings include your Home City (the city where you will
normally use the watch), the current time and date in your Home
City, and other settings.
2.
Press the D button to
scroll westward through
the city codes until the
one you want to select is
displayed.
•
Use the Timekeeping Mode to configure Home City settings.
2.
Press the A button to toggle the alarm on (“
”
2.
Press the A button to toggle the Hourly Time Signal on
displayed) or off (“
” displayed).
(“
”) or off (“
”).
If you are planning to adjust both the digital and analog
settings manually, be sure to adjust the digital setting first.
(Westward)
Alarm Off
Alarm On
Hourly Time Signal Off
Hourly Time Signal On
•
See the “World Time City
Code List” for information
about city codes.
TYO = Tokyo
•
Holding down the D button
scrolls at high speed.
❚
To configure Home City settings
1.
In the Timekeeping Mode,
hold down the A button
for about two seconds.
3.
When the city code you
want is displayed, press
the C button.
Alarm Time
•
This will cause the city code
currently selected as the
Home City to flash on the
display.
•
This will display the summer
time (DST) setting screen.
Home City Code
❚
To stop the alarm beeper
After the alarm starts to sound, press any button to stop it.
❚
To test the alarm
In the Alarm Mode, hold down the D button to sound the alarm.
5
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Operation Guide 3760
4.
Press the D button to
cycle through the
available summer time
(DST) settings until the
one you want to select is
displayed.
6.
While the 12/24-hour
8.
While the hour, minutes,
year, month, or day setting
is flashing, use the D (+)
button to change the
setting.
5.
When the summer time
setting is the way you
timekeeping setting is
flashing, press the D
button to toggle between
12-hour (“12H”) and 24-
hour (“24H”) timekeeping.
want, use the C button to
cycle the display through
the settings shown below.
(Forward)
Minutes
•
Holding down the D button
changes the setting at high
speed.
Indicates 12-hour or
24-hour timekeeping.
Hour
Home City
Code
12/24-hour
Timekeeping
•
AUTO
Summer Time
This setting enables the auto summer time setting, which
turns summer time on or off in accordance with the received
time calibration signal.
7.
While the seconds are
selected, press the D
button to reset them to 00
in accordance with the
time signal on the radio,
TV, etc.
Use the C button to select each of the settings and the
D button to change them.
•
This setting uses Japan summer time data when TYO is
selected as the Home City, and U.S. summer time data
when NYC, CHI, DEN, or LAX is selected as the Home
City.
Note that “AUTO” can be selected only when TYO, LAX,
DEN, CHI, or NYC is selected as the Home City.
Day
Seconds
Hour
•
•
•
When setting the hour, make sure you specify AM (no indicator) or
PM (P) correctly, or that you specify the correct 24-hour time.
You can set a year in the range of 2000 to 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.
•
•
Seconds reset to 00.
•
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.
Month
Year
Minute
OFF
This setting turns off summer time and returns to normal
timekeeping.
•
ON
This setting turns on summer time and advances the current
time by one hour. The DST indicator appears on the display
when this setting is selected.
•
Pressing the B button while
the seconds count is flashing
changes the face illumination
duration. See “To specify
illumination duration” for more
information.
High-speed Lock
Adjusting the Analog Time Setting
•
While holding down the D button to start high-speed clockwise
movement of the hands, press the B button to lock the
high-speed hand movement. You can then release the buttons.
High-speed hand movement will continue until it completes a
12-hour cycle, or until you press any button to stop it.
High-speed hand movement will also stop momentarily if an alarm
starts to sound. High-speed movement will resume after the alarm
stops.
9.
When all of the settings are the way you want, press the
A button.
You can use the Hand Setting Mode to adjust the analog time
manually when it does not match the digital time.
•
•
•
•
This exits the setting screen.
The display also will exit the setting screen automatically if
you do not perform any operation for about two or three
minutes.
1.
In the Hand Setting Mode,
hold down the A button
for about two seconds.
•
This will cause the hour and
minute setting of the digital
time to flash on the display.
Digital-Analog Synchronization
After adjustment of the digital time, the watch automatically
adjusts its analog setting to match.
3.
When the setting is the way you want, press the A
button.
•
•
When adjusting the analog time, the hands move clockwise.
Depending on how many hours different the digital and analog
time settings are, it may take some time for the analog hand
setting procedure to be finished.
•
This exits the setting screen and automatically synchronizes
the minute hand with the current seconds count.
The display also will exit the setting screen automatically if
you do not perform any operation for about two or three
minutes.
•
2.
Use the D (+) button to
adjust the hour and
minute hands so they
match the digital time.
•
Each press of the D button
moves the hands 20 seconds
clockwise.
(Forward)
•
Holding down the D button
moves the hands at high
speed.
6
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