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USER’S GUIDE 2456
4
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 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.
• If you leave the watch in Alarm, Day Counter, or Telememo Mode for about
two minutes without performing any operation, it automatically changes to the
Timekeeping Mode.
Data and Setting Scrolling
The B 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, Day Counter, World Time or Telememo Mode, the
data you were viewing when you last exited the mode appears first.
Inputting Text
The following describes how to input text in the Alarm, Day Counter, and
Telememo Modes.
To input characters
1.When the cursor is on the display, use B and D
to cycle through the available letters, numbers and
symbols, in the sequence shown below.
Cursor
:
/
.
–
(space)
0
to
9
A
to
Z
Press D.
Press B.
2.When the character you want is at the cursor position, press C to move the
cursor to the right.
3.Repeat steps 1 and 2 to input the rest of the characters you want.
Display Text
Though you can input up to eight characters for Alarm text, Day Counter text
and the Telememo name, only six characters can appear on the display at one
time. Because of this, display screens switch alternately between the first six
characters and the remaining two characters.
Timekeeping
• Pressing D while setting the current time in the Timekeeping Mode resets
the seconds count to zero. Pressing D while seconds count is in the range
of 30 to 59 resets the seconds to 00 and adds 1 to the minutes. In the range
of 00 to 29, the minutes count is unchanged.
• The day of the week is automatically displayed in accordance with the date
(year, month, and day) settings.
• The year can be set in the range of 2000 to 2039.
• The watch’s built-in full automatic calendar automatically 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.
12-hour/24-hour Timekeeping Formats
The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode
is also applied in all other modes.
• With the 12-hour format, the P (PM) indicator appears to the left of the hour
digits for times in the range of noon to 11:59 p.m. and the no indicator
appears to the left of the hour digits for times in the range of midnight to
11:59 a.m.
• With the 24-hour format, times are displayed in the range of 0:00 to 23:59,
with 24 indicator.
Time Calibration Signal Reception Precautions
• This watch is able to receive the time calibration
signal transmitted from Mainflingen, Germany
(located 25 kilometers southeast of Frankfurt).
Signal reception is possible within the area
represented by a circle with a radius of about 800
kilometers.
• Even when the watch is within the reception range,
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.
• This watch is designed to receive the signal transmitted from Mainflingen.
This means that reception is best when the antenna built into the 12 o’clock
edge of the watch is facing towards Mainflingen. Note, however, that moving
the watch while the time calibration signal receive operation is taking place
will make stable reception impossible.
Frankfurt
• If you are in an area where proper time calibration signal reception is
impossible, the watch keeps time with the precision noted in “Specifications.”
World Time
• The current time in all World Time Mode cities is calculated in accordance
with the Greenwich Mean Time (GMT) differential for each city, based on the
current Home City time setting in the Timekeeping Mode.
• GMT differential is calculated by this watch based on Universal Time
Coordinated (UTC) data.
Backlight Precautions
• The electro-luminescent panel that provides illumination loses power after very
long use.
• The illumination provided by the backlight may be hard to see when viewed
under direct sunlight.
• The watch may emit an audible sound whenever the display is illuminated.
This is due to vibration of the EL panel used for illumination, and does not
indicate malfunction.
• The backlight automatically turns off whenever an alarm sounds.
• 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.
• The daily alarm and hourly time signal do not operate during signal reception.
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.
• 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 (page E-4).
Hours
1/100 second
Minutes
Seconds
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.