— 7 —
To edit a data memory record
1. In the Data Memory Mode, display the record you want to edit.
2. Press B and the flashing cursor appears on the display.
3. Press C to move the flashing to the character you want to change.
4. Use D and A to change the character.
5. After making the changes you want, press B to store them and return to the
data memory record screen.
To delete a data memory record
1. In the Data Memory Mode, display the record you want to delete.
2. Press B and the flashing cursor appears on the display.
3. Press A and D at the same time to delete the record.
• The message CLEAR! appears to indicate that the record is being deleted.
After the record is deleted, the cursor appears on the display, ready for
input.
4. Input data or press B to return to the remaining memory screen.
Hours
Seconds
1/100 second
Minutes
Stopwatch
The stopwatch lets you measure elapsed time,
split times, and two finishes.
• The display range of the stopwatch is 23 hours,
59 minutes, 59.99 seconds.
• The stopwatch continues to run, restarting from
zero after it reaches its limit, until you stop it.
• Exiting the Stopwatch Mode while a split time is
frozen on the display clears the split time and
returns to elapsed time measurement.
• 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.
To measure times with the stopwatch
D
Start Stop
Elapsed Time
➤
Re-start Clear
D
➤
Stop
D
➤
D
➤
A
Split Time
D
Start Split
➤
Split release
Clear
A
➤
Stop
A
➤
D
➤
A
Two Finishes
D
Start Split
➤
Stop
Clear
A
➤
Split release
D
➤
A
➤
A
First runner
finishes.
Display time of
first runner.
Second runner
finishes.
Display time of
second runner.
(SPL displayed)
Location
Fort Collins, Colorado
Fukushima, Japan
Fukuoka/Saga, Japan
Frequency
60kHz
40kHz
60kHz
Call Sign
WWVB
JJY
JJY
Reference
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.
Auto Return Features
• If you leave the watch in the Alarm, Data Memory, or Hand Setting Mode for
two or three minutes without performing any operation, it automatically
changes to the Timekeeping Mode.
• If you leave a screen with flashing digits or a cursor on the display for two or
three minutes without performing any operation, the watch automatically
saves anything you have input up to that point and exits the setting screen.
Data and Setting Scrolling
The A and D buttons are used in various modes and setting screens to scroll
through data on the display. In most cases, holding down these buttons during
a scroll operation scrolls through the data at high speed.
Initial Screens
When you enter the Alarm or World Time Mode, the data you were viewing
when you last exited the mode appears first.
Time Calibration Signal Reception
• This watch is designed to receive a time calibration signal originating from
one of the three transmitters listed below.
• Signal reception is possible within a radius of about 2,000 miles (3,000
kilometers) from the Fort Collins transmitter.
• At distances further than about 500 kilometers from the Fukushima and
Fukuoka/Saga transmitter, the signal may become weak and reception may
be impossible under certain conditions.
• When you select one of the city codes shown below as your Home City code,
the watch sets up automatically to receive from the applicable transmitter.
Time calibration signal reception is not possible whenever any other city code
is specified as the Home City code.
• When you select TYO as your Home City code, the watch automatically
selects either the Fukushima signal (40kHz) or the Fukuoka/Saga signal
(60kHz), depending on which is stronger.
• Note that when TYO (Japan) is selected as the Home City code, you can
specify one of two different time signal transmitters .
Fort Collins
2,000 miles
1,200 miles
1,000
kilometers
1,000
kilometers
Fukuoka/Saga
500
kilometers
Fukushima
500
kilometers
Home City Code
LAX, DEN, CHI, NYC
TYO
Received Transmitter
Fort Collins, Colorado
Fukushima or Fukuoka/Saga, Japan
(selectable)
General Precautions
• The watch is designed to automatically update the date and day of the week
for the period January 1, 2000 to December 31, 2039. Setting of the date by
the time calibration signal cannot be performed starting from January 1,
2040.
• This watch can receive signals that differentiate between leap years and non-
leap years.
• Even when the watch is within the reception range of the transmitter, signal
reception is 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.
• The time calibration signal is bounced 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.
• Reception is best when the antenna built into the 12 o'clock edge of the
watch is facing in the general direction of the signal transmitter. Note,
however, that moving the watch while the time calibration signal receive
operation is taking place will make stable reception impossible.
• Think of the watch as acting like a TV or radio when it is receiving the
calibration signal. When receiving indoors, move to a location as near as
possible to a window.
• Proper signal reception can be difficult or even impossible under the
conditions listed below.
Near TVs, refrigerators, computers, or other household appliances
Far away from broadcasting stations among ferro-concrete structures or near
mountains
Underground, in tunnels or in ferro-concrete buildings
Near high-tension wires, neon signs, or radio stations with interfering
frequencies
Near railroads, highways or airports
In trains or cars
• Radio interference can make signal reception impossible.
• Strong electrostatic charge can result in the wrong time being set.
• If you are in an area where proper time calibration signal reception is
impossible, the watch keeps time with the precision noted in
“
Specifications.
”
Auto Summer Time (DST) Switching
The time calibration signal transmitted from Fort Collins, Colorado includes
both standard time and summer time (Daylight Saving Time) data. When auto
summer time (DST) switching is turned on, the watch switches between
standard time and summer time (DST) automatically in accordance with the
Fort Collins signal.
• Daylight Saving Time (DST) advances the time setting by one hour from
Standard Time. Remember that not all countries or even local areas use
Daylight Saving Time.
• The time calibration signals transmitted from the Fukushima and Fukuoka/
Saga do not include summer time data.
• When using the watch in the Continental United States or in Japan, select
AUTO DST for the auto summer time setting.
• The default auto summer time settings is AUTO DST whenever you select
one of the following city codes as your Home City code: HKG, TYO, SEL,
NYC, CHI, DEN, LAX, ANC, or HNL.
• If you experience problems receiving the time calibration signal in your area,
it is probably best to turn off auto time switching.
• See information about configuring summer time (DST) settings manually.
Troubleshooting
Check the following points whenever you experience problems with your watch.
Problem
Cannot perform
manual receive.
Auto receive is
turned on, but
the receive
indicator does
not appear on
the display.
Time setting is
incorrect
following signal
reception.
Probable Cause
The watch is not in the Timekeeping Mode.
•
You changed the time setting manually.
•
The watch was not in the Timekeeping
or World Time Mode, or you were
performing some button operation
during the auto signal receive operation
was performed.
•
Even if receive is successful, the receive
indicator disappears every day at 3am.
•
If the time is one hour off, the DST setting
may be incorrect.
•
The Home City Code setting is not
correct for the area where you are using
the watch.
What you should do
Enter the Timekeeping Mode
and try again.
•
Perform manual signal receive
or wait until the next auto
signal receive operation is
performed.
•
Check to make sure the watch
is in a location where it can
receive the signal.
•
Put the watch in a location
that is suitable for good
reception.
•
Change the DST setting to
AUTO DST.
•
Select the correct Home City
Code.
To select the auto summer time setting
1. In the Timekeeping Mode, press B. This causes the current auto receive on/
off setting (the receive indicator) to flash, which indicates the setting screen.
2. Press C three times until the summer time (DST) setting screen appears.
3. Use D to cycle through the summer time settings in the sequence shown
below.
4. When the setting you want is selected, press B to exit the setting screen.
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