MA0804-EG
Operation Guide 4343
Before using the watch...
Expose the watch to light
Power Saving
Your watch runs on electrical power generated from light and stored
by a chargeable battery. Long-term storage of the watch can cause
the battery to run low, so be sure to expose the watch to light for
some time before using it for the first time. See “Solar Charging” for
more information.
Power Saving causes the watch to enter a sleep state automatically
and stop movement of the analog hands in order to save power
whenever it is left in the dark. The watch will exit the sleep state if
you expose it to light or perform any button operation.
•
Note that the watch may also enter the sleep state and stop if it is
blocked from light by your sleeve.
Low Battery Alert
When secondary battery power is low, the second hand of the watch
will start to jump at 2-second intervals to let you know that charging
is required.
How the sleep state works
Sleep Level 1
•
See “Low Battery Alert” for more information.
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.
•
•
The second hand stops.
The hour and minute hands, and the date indicator continue to
operate normally.
•
Alarms and the hourly time signal continue to operate normally.
Sleep Level 2
Sleep Level 2 is triggered whenever the watch is left in the dark
while in Sleep Level 1 for six or seven days.
•
The hour and minute hands, and the date indicator stop at their
current positions.
•
•
•
Auto Receive is disabled.
Alarms and the hourly time signal are disabled.
Digital timekeeping functions continue to operate normally.
Jumps 2 seconds
You can use the button operations shown below to enter the Timekeeping Mode, World Time Mode, or Alarm Mode directly.
Modes and Indicators
Chronograph Mode
Timekeeping Mode
World Time Mode
Second Hand
Indicator Hand
• The indicator hand points to the city code.
Minute Hand
Hour Hand
Button
• World Time lets you display the current time in any one
of 27 cities (29 time zones) around the world.
• Start
• Reset
Button
(Chronograph
Mode)
• Stop
City Code
(New York)
❚
To search for a city code
Hour Hand
(24-hour)
Chronograph
Hands
(Hour, Minute)
World Time
(Hour, Minute)
Use the
button to scroll clockwise through the city
codes around the face.
Button
Button
Date
Second Hand
(Moving)
1/20-second Hand
(First minute only.)
❚
To check the reception result
The stopwatch performs 1/20-second elapsed time
measurement up to 23 hours, 59 minutes, 59.95
seconds (24 hours).
Press the
button. The indicator
Alarm Mode
OFF = Off
hand will move to “Y” (successful) or
“N” (unsuccessful) to indicate the
reception result.
Y:
• The indicator hand points to ON or OFF.
• Use this mode to set the alarm time and to turn the
alarm on or off.
Successful
ON = On
(While
chronograph
is reset.)
Start/Stop
N:
Press the
button to start and stop the
Unsuccessful
chronograph.
❚
To turn the alarm on or off
Press the
button to toggle the alarm on and off.
❚
To trigger a receive operation manually
Alarm Time
(Hour, Minute)
Chronograph Reset
Hold down the
button for about two seconds until
To exit the Chronograph Mode, the chronograph must
be reset by pressing the button while the
chronograph is stopped. The chronograph is reset
when the second hand, chronograph hands, and 1/20-
second hand are all at 12 o’clock.
the indicator hand moves to the “READY” position. This
will start signal reception.
• On/Off
For more information, see “How a Radio-
controlled Watch Works”.
1
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Operation Guide 4343
Receiving the Calibration Signal
At the start of the receive
operation
How a Radio-controlled Watch Works
There are two methods you can use in order to receive the time
calibration signal.
•
•
•
The indicator hand will move to “READY”.
The hour and minute hands will remain at their normal positions.
The second hand will stop at “0”.
Auto Receive
Up to six times per day
(Midnight, 1:00, 2:00, 3:00, 4:00, and 5:00 a.m.)
What is a radio-controlled watch?
Calibration Signal
A 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 transmitted 24 hours a day from the Mt.
Otakadoya transmitter (40 kHz) located in Tamura-gun,
Fukushima Prefecture, and from the Mt. Hagane transmitter (60
kHz) located on the border between Saga Prefecture and
Fukuoka Prefecture.
•
As soon as one auto receive is complete, all subsequent auto
receives for that day are cancelled.
While reception is in progress
•
The indicator hand will move to “WORK”.
•
•
The hour and minute hands will remain at their normal positions.
Do not perform any watch operations while signal reception is in
progress.
Signal is received by
Manual Receive
You initiate signal reception by pressing a button.
built-in antenna.
Transmitter
Long-wave time
calibration signal
•
•
The U.S. calibration signal (Call Sign: WWVB) is transmitted by
the National Institute of Standards and technology from Fort
Collins, Colorado.
Hold down the A button for
about two seconds.
Watch decodes
received data and
converts it to time
data.
Time calibration signal frequencies and transmitter locations are
subject to change.
Signal data
Decode
•
The indicator hand will indicate
the result of the reception, the
watch will beep, and the indicator
hand will move to “READY”.
Y: Successful
N: Unsuccessful
Time data
Internally
The time data of the Japanese calibration signal (Call Sign:
JJY) is maintained by the Japan Standard Time Group of the
National Institute of Information and Communications
Technology (NICT). Note that transmission of the standard
wave may be interrupted occasionally due to maintenance,
lightning, etc. For more information, visit the website of the
Japan Standard Time Group of the National Institute of
Information and Communications Technology (NICT) at the
following URL.
Time is adjusted
according to time
data.
Cesium
atomic clock
Watch
READY
WORK
❚
To interrupt a receive operation
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.
WORK
Press any button.
When reception is complete (Signaled when the watch beeps.)
•
When the receive operation is successful, the indicator hand
moves to “Y”, the watch adjusts its time, and then the indicator
hand returns to its second hand operation after about one or two
minutes.
•
Note that the above URL is subject to change.
•
When the receive operation fails, the indicator hand moves to “N”
and then the watch returns to the unadjusted time after about one
or two minutes.
❚
To check the result of the last receive
operation
❚
To position the watch for optimum
reception
Reception Ranges
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.
Remove the watch from your wrist and place it somewhere so its top
(12 o’clock, where the antenna is located) is facing approximately in
the direction of the signal transmitter. Keep it away from metal
objects.
•
For information about selecting a Home City, see “Changing the Home City Setting”. See the “World Time City Code List” for
information about city codes.
In the Timekeeping Mode, press the A button to renter the
Receive Result Mode, which displays the last receive result.
•
The indicator hand will move to “Y” (if the last reception was
successful) or “N” (if the last reception was unsuccessful).
Press the A button to return to the Timekeeping Mode.
The watch also will return to the Timekeeping Mode automatically
if you do not perform any operation for about five seconds.
Home City (Supports signal reception)
TYO, HKG
Receivable Transmitter
Either the Mt. Otakadoya signal (40 kHz) or the Mt. Hagane signal (60 kHz)
Ft.Collins
•
•
HNL, ANC, LAX, DEN, CHI, NYC
Resin Band
•
Signal reception is possible in Hong Kong (HKG), Honolulu (HNL), and Anchorage (ANC) when reception conditions are good.
Y: Successful
Transmitter Location
1000km
Transmitter Location
N: Unsuccessful
Mt. Otakadoya
(40 kHz)
Metal Band
500km
1000km
500km
Mt. Hagane
(60 kHz)
The last receive status changes each time a new time
calibration signal receive operation is performed.
•
•
Orienting the watch so it is sideways to the transmitter makes it
more difficult to receive the signal.
3000km
Ft.Collins
Do not move the watch while it is receiving the calibration signal.
1000km
Time Required for Reception
Certain conditions can make reception impossible even when the watch is within one of the reception ranges shown above.
Signals become weaker outside of the smaller circles indicated by dashed lines, so the reception environment has a greater effect on signal
reception.
Signal reception normally takes anywhere from about two to seven
minutes. Under certain signal conditions however, the receive
operation can take as long at 14 minutes.
•
The following also can affect signal reception: geographic contours, structures, weather, climate, time of day (afternoon, evening), noise.
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Operation Guide 4343
Location
Calibration Signal Reception
Troubleshooting
Reception is difficult and may even be impossible in the locations
described below. Avoid such locations when performing signal
reception.
Precautions
1. The watch cannot receive the time calibration signal.
2. Time calibration signal reception is successful, but the
hourly time signal and current time are slightly off.
•
•
•
Auto receive is disabled while the watch is in the Chronograph
Mode.
•
Is there something in the immediate area that may be interfering
with reception?
•
You should think of your watch as operating like a radio or TV
when it is receiving the calibration signal.
•
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 off slightly (within one
second).
Operating any button while auto receive is in progress will cause
the watch to beep and then exit the receive operation.
Make sure you are within the range of a calibration signal
transmitter before performing the receive operation. Remember
that geographic contours, nearby buildings, the season, or the
time of day can make reception impossible even when you are
within range of the transmitter.
Proper reception may be impossible if there is something blocking
the signal. If reception is unsuccessful, try again.
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.
•
•
Are you within the reception range of a transmitter?
See “Reception Ranges” for information about areas where the
watch can receive the signal.
Do you have the correct Home City code selected?
Remember that auto receive is not performed unless TYO
(Tokyo), HKG (Hong Kong), NYC (New York), CHI (Chicago),
DEN (Denver), LAX (Los Angeles), ANC (Anchorage), or HNL
(Honolulu) is selected as the Home City. Select the correct Home
City code using the procedure under “Changing the Home City
Setting”.
3. Time calibration signal reception is successful, but the
current time setting is wrong.
•
•
•
Is the correct city code selected for your Home City? Select the
correct Home City code using the procedure under “Changing the
Home City Setting”.
Among or near buildings
Near high-voltage lines
•
Is the signal being transmitted?
•
When the watch is unable to adjust its time using the calibration
signal for some reason, timekeeping accuracy is within 20
seconds per month.
Though the time data of the Japanese calibration signal (Call
Sign: JJY) is maintained by the Japan Standard Time Group of
the National Institute of Information and Communications
Technology (NICT), it sometimes may be interrupted for periodic
maintenance work, or because of lightning or other problems.
Next to a household
appliance or office
equipment (TV, speaker, fax,
computer, cell phone, etc.)
Inside a vehicle
(automobile, train, plane, etc.)
•
•
Strong electrostatic charge can cause timekeeping error.
Receive is cancelled if an alarm operation starts 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.
In a location where there is
radio interference
(construction site, airport, etc.)
Near mountains
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.
Using the Chronograph
The chronograph performs 1/20-second elapsed time measurement
up to 23 hours, 59 minutes, 59.95 seconds (24 hours). When the
maximum limit is reached, the elapsed time returns to zero
automatically and timing continues from there.
❚
To start or stop an elapsed time
operation
Enter the Chronograph Mode to use the chronograph.
•
In the Timekeeping Mode, press the B button once to enter
the Chronograph Mode.
Second
• Start
• Stop
• Reset
Timekeeping Mode
Chronograph Mode
Indicator hand makes
one revolution.
Hour, Minute
1/20 second
Stop
Start
Reset
Second hand
counts seconds.
Second hand
moves to “0”.
•
•
1/20-second timing is performed for the first minute after you start
or restart an elapsed time measurement operation. The 1/20-
second hand also jumps to the elapsed time position when you
stop an elapsed time measurement operation.
Pressing the A button while an elapsed time measurement
operation is in progress resets the chronograph to zero.
•
To return to the Timekeeping Mode, press the A button while
the chronograph is reset to zero.
Cumulative Time Measurement
Pressing the B button to restart the chronograph without resetting it
to all zeros resumes elapsed time measurement from where it was
last stopped.
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Operation Guide 4343
❚
To check the current summer time on/
off setting
❚
To turn summer time on or off
Using World Time
World Time lets you display the current time in any one of 27 cities
(29 time zones) around the world.
1.
In the World Time Mode, use the D button to select the
city code whose summer time setting you want to
change.
In the World Time Mode, press
the A button.
❚
To search for a city
(Indicates zone)
In the World Time Mode, press
the D button to move the
indicator hand (which is
•
•
The second hand moves to “0”
when summer time is turned on,
and to “5” (between “4” and “6”)
when summer time is turned off.
The second hand will resume
normal operation after about five
seconds.
•
•
Press the D button to enter the World Time Mode.
If you are entering from the Chronograph Mode, the chronograph
must be reset first. See “Chronograph Reset” for more
information.
2.
Hold down the A button for about five seconds to
toggle summer time on or off.
pointing at the currently
selected city code) clockwise.
•
You can turn summer time on or off individually for each World
Time city. Note, however, that you cannot change the summer
time setting for the “GMT” (Greenwich Mean Time) zone.
Off
World Time Mode
•
About one second after you
release the D button, the hands
of the watch will move to the
current time in the zone of the
indicated city code.
Currently Selected City Code
(Clockwise)
When summer time is turned on
Current time in the zone
where the currently
selected city code is
located (24-hour format;
hour, minute)
•
When you turn on summer time for a city code that supports time
calibration signal reception, the watch will decide automatically
whether or not to apply the summer time or standard time setting
in accordance with the received signal.
Indicator Hand
(5 seconds)
•
•
In the case of a city code that does not support signal reception,
turning on summer time advances the current time setting by one
hour.
City codes that support signal reception are TYO, HKG, HNL,
ANC, LAX DEN, CHI, and NYC.
Home City beep indicator
Time City Code Zone
(Hour, Minute)
OFF
ON
If the city code that the indicator hand moves to when you press the
D button is your currently selected Home City, the watch will beep.
•
Signal reception is possible in Hong Kong (HKG), Honolulu
(HNL), and Anchorage (ANC) when reception conditions are
good.
Important!
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.
If the current time shown of the selected city code is not correct,
check the current time setting of your Home Time and make
adjustments as necessary.
For information about configuring home time settings, see
“Changing the Home City Setting”.
•
To select summer time manually for a city code that supports
signal reception, turn off summer time for the city code and
then select a city code in the neighboring time zone that will
advance the time by one hour.
•
•
Press the B button to return to the Timekeeping Mode.
Important!
Changing the Home City Setting
World Time City Code List
If you are using the watch in Japan, be sure to select TYO (Tokyo)
as your Home City.
Selecting another city code will make it impossible to receive the
Use the World Time Mode to specify your Home City.
GMT
GMT
City
City
Code
Differ-
ential
Differ-
ential
City Name
City Name
Example: To change the Home City setting from New York
(NYC) to Tokyo (TYO)
Code
time calibration signal, which will cause your time setting to be off.
GMT +0.0 Greenwich Mean Time ADL
+9.5
Adelaide
Sydney
Current Time in
Selected City
London
Paris
SYD +10.0
NOU +11.0
WLG +12.0
PPG –11.0
HNL –10.0
ANC –9.0
1.
In the World Time Mode,
use the D button to select
the city code you want to
use as your new Home
City.
LON
PAR
ATH
JED
+0.0
+1.0
+2.0
+3.0
Noumea
Athens
Jeddah
Teheran
Dubai
Wellington
Pago Pago
Honolulu
THR +3.5
DXB +4.0
Anchorage
Los Angeles
Denver
KBL
KHI
+4.5
+5.0
+5.5
Kabul
LAX
DEN –7.0
CHI
–6.0
NYC –5.0
–8.0
TYO Selected
Karachi
Delhi
DEL
Chicago
Indicator Hand Movement
2.
Hold down the A button
as you press the D
button to swap your
current Home City with the
World Time City you
selected in step 1.
DAC +6.0
RGN +6.5
BKK +7.0
HKG +8.0
TYO +9.0
Dhaka
New York
Caracas
*
Yangon
Bangkok
Hong Kong
Tokyo
CCS –4.0
RIO
–2.0
–1.0
–3.0
Rio de Janeiro
•
The watch will beep and make
the currently selected World
Time City your new Home
City.
Your previous Home City will
become your new World Time
City, and the indicator hand
will move to its city code.
•
•
Based on data as of June 2007.
The rules governing global times (GMT differential and UTC
offset) and summer time are determined by each individual
country.
In December 2007, Venezuela changed its offset from –4.0 to
–4.5. Note, however, that this watch displays an offset of –4.0 (the
old offset) for the CCS (Caracas, Venezuela) city code.
•
*
5
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Operation Guide 4343
❚
To set the alarm time
3.
When everything is the
way you want, press the
A button to exit the alarm
setting mode.
Using the Alarms
The watch beeps for 10 seconds when the Timekeeping Mode time
reaches the currently set alarm time.
The alarm will sound when the current time in your Home City
matches the alarm time.
Example: To change the alarm setting from midnight to 3:00 p.m.
ON
1.
In the Alarm Mode, hold
down the A button for
about five seconds until
the indicator hand moves
to “ON” and the second
hand moves to zero.
❚
To turn the alarm on or off
•
This will exit the alarm setting
mode and the second hand
will resume normal operation.
The watch will exit the alarm
setting mode automatically if
you do not perform any button
operation for about two or
three minutes.
•
In the Alarm Mode, press the C button to toggle the alarm on
and off.
•
•
•
Press the C button to enter the Alarm Mode.
If you are entering from the Chronograph Mode, the chronograph
must be reset first. See “Chronograph Reset” for more
information.
•
When the alarm is turned on, a beeper sounds when the alarm
time is reached.
•
This indicates the setting
mode.
OFF
ON
0
Alarm Mode
ON or OFF
Alarm time
2.
Use the D (+) and B (–)
buttons to change the
alarm setting in one-
minute increments.
(–)
•
Each press of either button
changes the setting by one
minute.
❚
To stop the alarm
•
Holding down either button
will cause the hands to move
at high speed. Once started,
high-speed hand movement
will continue even if you
release the button. To stop
high-speed hand movement,
press any button.
(+)
Alarm Setting
(24-hour Format)
Pressing any button while the alarm is sounding stops it.
•
To return to the Timekeeping Mode from the Alarm Mode,
press the B button. Note that you cannot return to the
Timekeeping Mode while in the alarm setting mode.
•
The alarm time uses 24-hour timekeeping format.
4.
When everything is the
way you want, press the
A button to exit the
setting mode.
Setting the Time and Date Manually
24-hour Hand
You can perform the following procedures to adjust the time
and date when the watch is unable to receive a time
calibration signal for some reason.
2.
Use the D (+) and B (–)
buttons to change the
hour and minute setting.
Hour, Minute
•
•
The second hand will resume
normal operation.
Pressing A to restart
timekeeping on a time signal
on the TV or radio ensures
precise setting.
The watch will exit the setting
mode automatically if you do
not perform any button
operation for about two or
three minutes.
(–)
•
Each press of either button
changes the setting by one
minute.
Indicator Hand
1.
In the Timekeeping Mode
hold down the A button
until the indicator hand
completes the following
sequence of operations:
indicates the last signal
reception result, moves to
the “READY” position,
moves to 12 o’clock.
•
•
Holding down either button
will cause the hands to move
at high speed. Once started,
high-speed hand movement
will continue even if you
release the button. To stop
high-speed hand movement,
press any button.
Date
(+)
Hour,
Minute
(+)
When you are using the watch in an area that supports time
calibration signal reception, it will adjust the date automatically
for month lengths and leap years. If you use it in an area that
does not support signal reception, you will have to make
adjustments for month lengths and leap year manually.
•
When setting the time, make sure you also watch the 24-hour
hand so the time is set properly (1:00 a.m. = 1 o’clock, 1:00
p.m. = 13 o’clock).
•
•
This is the setting mode.
Second Hand
Keep A button depressed
until the indicator hands stops
at 12 o’clock.
3.
•
Use the C button to change the day setting.
•
The second hand also will
move to “0” at this time.
Each press of the C button advances the day by one.
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Operation Guide 4343
Chronograph Hands
Hour and Minute Hands
24-hour Hand
3.
Press the C button.
5.
•
Press the C button.
Home Position Adjustment
•
This will cause the hour hand,
minute hand, and 24-hour
hand to move to their home
positions.
This will cause the
chronograph hour and minute
hands to move to their home
positions.
If the time setting of your watch is not correct even though time calibration signal reception is being performed normally, use the
procedure in this section to check the home positions of the hands and make adjustments as required. Note that you do not need to
perform the following operation if your watch is showing the correct time.
Home Position
Home Position
Hour Hand: 24:00
Minute Hand: 24:00
Hour Hand: 12 o’clock
Minute Hand: 12 o’clock
24-hour Hand: 24:00
If the indicator hand or second hand is
not at its proper home position
1.
In the Timekeeping Mode,
hold down the A button
and then the C button for
about five seconds.
Indicator Hand
•
If the hour, minute, and 24-hour hands are all at their proper
home positions, advance to step 5.
•
If the hour and minute hands are at their proper home
positions, advance to step 7.
2.
Use the B button to
adjust the position
of the indicator hand
and the C button to
adjust the position
of the second hand.
If the chronograph hour and minute hands
are not at their proper home positions
If the chronograph hour and minute hands
are not at their proper home positions
•
The watch will beep, and then
the indicator hand and the
second hand will move their
home positions.
4.
Use the D (+) and
B (–) buttons to
adjust the hands.
6.
Use the D (+) and
B (–) buttons to
adjust the hands.
•
The hands move
Home Position
Indicator Hand: 12 o’clock
Second Hand: 0
Second Hand
clockwise only. Keep
pressing the buttons
until the applicable
hand is at its proper
home position.
•
If the indicator hand and second hand are both at their
proper home positions, advance to step 3.
•
Holding down either button will cause the hands to
move at high speed. Once started, high-speed hand
movement will continue even if you release the button.
To stop high-speed hand movement, press any button.
•
Holding down either button will cause the hands to
move at high speed. Once started, high-speed hand
movement will continue even if you release the button.
To stop high-speed hand movement, press any button.
•
The 24-hour hand is synchronized with the hour and
minute hands, so separate adjustment is not required.
7.
Check the day indicator. If
it is not at its home
position, use the C
9.
Press the A button to exit
home position adjustment
and return to the
button to move it there.
Timekeeping Mode.
•
If you press the C button
instead of the A button in
step 1, the watch will return to
step 1 (indicator hand and
second hand home position
adjustment) of this procedure.
Home Position
Day 1
Day
•
If the Day is at its proper home position, advance to step 9.
If the Day is not at its proper home position
•
The watch also will exit home
position adjustment
automatically if you do not
perform any operation for
about two or three minutes.
8.
Use the D (+) and
B (–) buttons to
adjust the day.
After completing the home position adjustment procedure, put
the watch in a location where it is able to receive the time
calibration signal easily and perform a manual receive
operation.
•
For details about the manual receive procedure, see
“Receiving the Calibration Signal”.
•
Holding down either button will cause the day to change
at high speed. Once started, high-speed day change
will continue even if you release the button. To stop
high-speed day change, press any button.
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