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Operation Guide 4700
• At distances further than about 500 kilometers from a transmitter, signal reception
may not be possible during certain times of year or times of day. Radio interference
may also cause problems with reception.
• Even when the watch is within the reception range of the transmitter, signal
reception will be impossible if the signal is blocked by mountains or other geological
formations between the watch and signal source.
• Signal reception is affected by weather, atmospheric conditions, and seasonal
changes.
• See the information under "Signal Reception Troubleshooting" if you experience
problems with time calibration signal reception.
About Auto Receive
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. The start times of the auto receive operations depend
on the current Home City and DST settings.
Home City
Auto Receive Start Times
1
2
LIS
Standard Time
1:00 am
2:00 am
LON
Daylight Saving
2:00 am
3:00 am
Time
BCN
Standard Time
2:00 am
3:00 am
MAD
PAR
Daylight Saving
3:00 am
4:00 am
MIL
Time
ROM
BER
STO
ATH
Standard Time
3:00 am
4:00 am
Daylight Saving
4:00 am
5:00 am
Time
MOW Standard Time
4:00 am
5:00 am
Daylight Saving
5:00 am
Midnight
Time
next day
Note
• The display of the watch is blank while an auto receive operation is in progress.
• Auto receive is performed only if the watch is in the Timekeeping Mode or World
Time Mode when one of the calibration times is reached. It is not performed if a
calibration time is reached while an alarm is sounding, or while you are configuring
settings (while settings are flashing on the display).
• Auto receive of the calibration signal is designed to be performed early in the
morning, while you sleep (provided that the Timekeeping Mode time is set correctly).
Before going to bed for the night, remove the watch from your wrist, and put it in a
location where it can easily receive the signal.
• When auto receive is turned on, the watch receives the calibration signal for two to
seven minutes everyday when the time in the Timekeeping Mode reaches each of the
six calibration times. Avoid performing any button operation within seven minutes
before or after any of the six calibration times. Doing so can interfere with correct
calibration.
• Remember that reception of the calibration signal depends on the time kept in the
digital display. Reception will be performed whenever the display shows one of the
six calibration times, regardless of whether or not the displayed time is actually the
correct time.
To perform manual receive
1. Place the watch on a stable surface so its top (12
o'clock side) is facing towards a window.
2. In the Timekeeping Mode, hold down D for about two
seconds until the watch beeps.
3. After you release D the display will show the letters
. This indicates that signal reception is in progress.
• Time calibration signal reception normally takes from two to seven minutes. Take
care that you do not perform any button operations or move the watch during this
time.
• After signal reception is complete, the display of the watch changes to the last signal
screen.
Note
• To interrupt a reception and return to the Timekeeping Mode, press D.
• If reception is unsuccessful, the message
two minutes. After that, the watch returns to the Timekeeping Mode.
• You can also change from the last signal or
screen by pressing D.
About the Receiving Indicator (Manual receive)
The receiving indicator shows the strength of the calibration signal being received. For
best reception, be sure to keep the watch in a location where signal strength is
strongest.
Weak
(Level 0)
Receiving indicator
• Even in an area where signal strength is strong, it takes about 10 seconds for signal
reception to stabilize enough for the receiving indicator to indicate signal strength.
• Use the receiving indicator as a guide for checking signal strength and for finding the
best location for the watch during signal reception.
• The Level 3 receiving indicator remains on the display in all modes following
reception of the time calibration signal and calibration of the watch's time setting.
The Level 3 receiving indicator is not displayed if signal reception was unsuccessful
or after manual adjustment of the current time setting.
• The Level 3 receiving indicator indicates that at least one of the six calibration signal
receive operations was successful. Note, however, that the Level 3 receiving
indicator is cleared from the display when the first auto receive operation of the day
is performed.
3
4
5
6
3:00 am
4:00 am
5:00 am
Midnight
4:00 am
5:00 am
Midnight
1:00 am
next day
4:00 am
5:00 am
Midnight
1:00 am
next day
5:00 am
Midnight
1:00 am
2:00 am
next day
next day
5:00 am
Midnight
1:00 am
2:00 am
next day
next day
Midnight
1:00 am
2:00 am
3:00 am
next day
next day
next day
Midnight
1:00 am
2:00 am
3:00 am
next day
next day
next day
next day
1:00 am
2:00 am
3:00 am
4:00 am
next day
next day
next day
next day
ERR
appears on the display for one or
ERR
screen to the normal timekeeping
Strong
(Level 3)
To turn auto receive on and off
1. In the Timekeeping Mode, press C to display the last
signal screen.
• The watch will automatically return to the Timekeeping
Mode if you do not perform any button operation for one
or two minutes after displaying the last signal screen.
2. Hold down A until the current auto receive setting
flashes on the display. This is the setting screen.
• If the auto receive setting does not appear when you
On/Off status
hold down A, it means that the city code currently
selected for the Home City is for an area that does not
support calibration signal reception. You cannot turn
auto receive on or off in this case.
3. Use D to turn auto receive on (
4. Press A to exit the setting screen.
• To return to the Timekeeping Mode from the last signal screen, press D.
• For information about city codes that support signal reception, see "To set your
Home City".
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal reception.
Note
• The display of the watch is blank while an auto receive operation is in progress.
Problem
Probable Cause
• The watch is not in the Timekeeping
Cannot perform
manual receive.
Mode.
• Your current Home City is not one of the
following city codes: LIS, LON, BCN,
MAD, PAR, MIL, ROM, BER, STO,
ATH, or MOW
• You changed the time setting manually.
Auto receive is
• You were performing some button
turned on, but
the Level 3
operation during the auto receive.
• Even if reception is successful, the
receiving
indicator does
Level 3 receiving indicator disappears
not appear on
every day when the first auto receive
the display.
operation of the day is performed.
• If the time is one hour off, the DST
Time setting is
incorrect
setting may be incorrect.
• The Home City code setting is not
following signal
reception.
correct for the area where you are using
the watch.
• For further information, see "Important!" under "Time Calibration Signal Reception"
and "Radio-controlled Atomic Timekeeping Precautions".
World Time
The World Time Mode digitally displays the current time in
City Code
48 cities (29 time zones) around the world.
• If the current time shown for a city is wrong, check your
Home City time settings and make the necessary
changes.
• The watch will perform a signal reception even if it is in
the World Time Mode when a calibration time is
reached. If this happens, the World Time Mode time
settings will be adjusted in accordance with the
Timekeeping Mode's Home City time.
Current time in
• All of the operations in this section are performed in the
selected city
World Time Mode, which you enter by pressing C.
To view the time in another city
While in the World Time Mode, press D to scroll through the city codes (time zones)
to the east.
• For full information on city codes, see the "City Code Table".
To toggle a city code time between Standard Time and Daylight Saving Time
1. In the World Time Mode, use D to display the city code
DST indicator
(time zone) whose Standard Time/Daylight Saving Time
setting you want to change.
2. Hold down A to toggle Daylight Saving Time (DST
indicator displayed) and Standard Time (DST indicator
not displayed).
• Note that you cannot use the World Time Mode to change the DST setting of the
Home City code you currently have selected in the Timekeeping Mode. See "To
change the Daylight Saving Time (summer time) setting" for information about
turning the Home City code DST setting on and off.
• The DST indicator will appear on the display whenever you display a city code for
which Daylight Saving Time is turned on.
• Note that the DST/Standard Time setting affects only the currently displayed city
code. Other city codes are not affected.
Stopwatch
The stopwatch lets you measure elapsed time.
Seconds
• The display range of the stopwatch is 59 minutes, 59.99
seconds.
• The stopwatch continues to run, restarting from zero
after it reaches its limit, until you stop it.
• The stopwatch measurement operation continues even
if you exit the Stopwatch Mode.
• All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing C.
Minutes
1/100 second
To measure times with the stopwatch
Elapsed Time
D
➤
D
➤
D
Start
Stop
Re-start
ON
) or off (
OFF
).
What you should do
• Enter the Timekeeping Mode
and try again.
• Select LIS, LON, BCN, MAD,
PAR, MIL, ROM, BER, STO,
ATH, or MOW as your Home
City.
• Perform manual receive or
wait until the next auto signal
receive is performed.
• Check to make sure the
watch is in a location where it
can receive the signal.
• Change the DST setting to
Auto DST.
• Select the correct Home City
code.
➤
A
➤
D
Stop
Clear
2
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