MA0212-A
USERS GUIDE 2453/2642
About This Manual
The operational procedures for Modules 2453 and 2642
are identical. All of the illustrations in this manual show
Module 2453.
Button operations are indicated using the letters shown
in the illustration.
These watches are equipped with two color LCD panels.
For the sake of simplicity, the screen shots in this
manual are shown using only one color.
Module 2453
Each section of this manual provides you with the
information you need to perform operations in each
mode. Further details and technical information can be
found in the ŇReference section.
Module 2642
General Guide
Press C to change from mode to mode.
In any mode, press L to illuminate the display.
Timekeeping Mode
Telememo Mode
Alarm Mode
Stopwatch Mode
Countdown Timer Mode
Dual Time Mode
Press .
Timekeeping
Daylight Saving Time (DST)
Use the Timekeeping Mode to set and view the current
Hour : Minutes Seconds
time and date. You also use the Timekeeping Mode to
Daylight Saving Time (summer time) advances the time setting by one hour from
select the display color pattern.
Standard Time. Remember that not all countries or even local areas use Daylight
Saving Time.
To set the time and date
1. In the Timekeeping Mode, hold down A until the
To toggle the Timekeeping Mode time between DST and Standard Time
seconds start to flash, which indicates the setting
1. In the Timekeeping Mode, hold down A until the
screen.
seconds start to flash, which indicates the setting
2. Press C to move the flashing in the sequence shown
screen.
below to select other settings.
2. Press C once to display the DST setting screen, which
is indicated by a flashing
(DST on) or
(DST
Month Day
DST
Seconds
Hour
Minutes
off) indicator.
Day of week
3. Press D to toggle between Daylight Saving Time (
PM indicator
Color Pattern
displayed) and standard time (
displayed).
Month
Year
Day
4. Press A to exit the setting screen.
The DST indicator appears on the display to indicate
3. When the setting you want to change is flashing, use D and B to change it as
that daylight saving time is turned on.
described below.
To change this setting
Perform this button operation
Color Pattern Setting
Seconds
Press D to reset to
.
00
This watch is equipped with two color LCD panels, which provide a choice of
12 different color patterns from which you can choose.
Press D to toggle between Daylight Saving Time (
) and
DST
standard time (
).
To change the color pattern setting
Hour, Minutes, Year,
Use D (+) and B () to change the setting.
1. In the Timekeeping Mode, hold down A until the
Month, Day
seconds start to flash, which indicates the setting
Color Pattern
Use D and B to change the color pattern setting.
screen.
2. Use C to cycle through the available setting screens
Pressing D while the seconds are in the range of 30 to 59 resets them to
and
00
until the color pattern setting screen (indicated by the
adds 1 to the minutes. In the range of 00 to 29, the minutes are unchanged.
flashing
See ŇDaylight Saving Time (DST) for details on DST setting.
indicator) is on the display.
See ŇColor Pattern Setting for details about the color pattern setting.
3. Use B and D to select the color pattern you want.
4. Press A to exit the setting screen.
4. Press A to exit the setting screen.
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 watchs built-in full automatic calendar 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 watchs battery replaced.
To toggle between 12-hour and 24-hour timekeeping
In the Timekeeping Mode, press D to toggle between 12-hour timekeeping (indicated
by A or P on the display), or 24-hour timekeeping.
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 A (AM) 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, without
any indicator.
The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all modes.
1
USERS GUIDE 2453/2642
Alarms
Telememo
You can set five independent Daily Alarms. When an
Telememo lets you store up to 30 records, each
Alarm number
Remaining memory
alarm is turned on, the alarm tone sounds when the alarm
containing name and telephone number data. Records
AM indicator
time is reached. One of the alarms is a snooze alarm,
are automatically sorted based on the characters of the
while the other four are normal (non-snooze) alarms that
name. You can recall records by scrolling through them on
sound for 20 seconds.
the display.
You can also turn on an Hourly Time Signal that causes
See ŇCharacter List for details on how the watch sorts
the watch to beep twice every hour on the hour.
records.
The snooze alarm repeats every five minutes.
All of the operations in this section are performed in the
The alarm number of the display indicates the alarm
Telememo Mode, which you enter by pressing C.
Name
type, as described below.
through
: Normal alarm screen
Timekeeping
: Snooze alarm screen
Mode time
: Hourly Time Signal screen
Alarm time (Hour : Minutes)
Alarm settings (and Hourly Time Signal settings) are
available in the Alarm Mode, which you enter by
pressing C.
Telephone number
To set an alarm time
1. In the Alarm Mode, press D to scroll through the alarm
To create a new Telememo record
screens until the one whose time you want to set is
1. In the Telememo Mode, use B and D to cycle through
displayed.
Name area
the record screens until the new data screen appears.
The new data screen is the one that is blank (contains
no name and telephone number).
If the new data screen does not appear, it means that
memory is full. To store another record, you will first
have to delete some of the records stored in memory.
Alarm on indicator
2. Hold down A until the flashing cursor (
) appears in
the name area of the display, which indicates the
2. After you select an alarm, hold down A until the hour setting of the alarm time
setting screen.
Number area
starts to flash, which indicates the setting screen.
3. Use D and B to change the character at the cursor
This operation automatically turns on the alarm.
New Data screen
position in the name area. The character changes in the
3. Press C to move the flashing between the hour and minute settings.
following sequence.
4. While a setting is flashing, use D (+) and B () to change it.
When setting the alarm time using the 12-hour format, take care to set the time
Press .
correctly as a.m. (A indicator) or p.m. (P indicator).
(space)
to
to
5. Press A to exit the setting screen.
Press .
Alarm Operation
4. When the character you want is at the cursor position, press C to move the cursor
Starting from the point the Timekeeping Mode time reaches one hour before an alarm
to the right.
time the display pattern changes each second. This pre-alarm feature lets you know
5. Repeat steps 3 and 4 until the name is complete.
that an alarm time is about to be reached. When the actual alarm time is reached, an
You can input up to eight characters for the name.
alarm tone sounds for 20 seconds. In the case of the snooze alarm, the alarm
6. After you input the name, press C as many times as necessary to move the cursor
operation is performed a total of seven times, every five minutes, or until you turn the
to the number area.
alarm off.
When the cursor is located at the eighth space of the name area, moving the
Pressing any button stops the pre-alarm operation or the alarm tone operation.
cursor to the right causes it to jump to the first digit of the number. When the
The pre-alarm feature works in the Timekeeping Mode only.
cursor is at the 12th digit of the number, moving it to the right (by pressing C)
causes it to jump to the first character in the name.
To test the alarm
7. Use D and B to change the character (hyphen, number, or space) at the cursor
In the Alarm Mode, hold down B to sound the alarm.
position in the number area. The character changes in the following sequence.
To turn a normal 20-second alarm and the Hourly Time Signal on and off
Press
.
1. In the Alarm Mode, press D to select an normal 20-second alarm (
through
to
(space)
) or the Hourly Time Signal (
).
Press
.
2. When the alarm or the Hourly Time Signal you want is selected, press B to turn it
8. When the character you want is at the cursor position, press C to move the cursor
on and off.
to the right.
x
Indicates alarm is on.
9. Repeat steps 7 and 8 until you complete number input.
y
Indicates Hourly Time Signal is on.
You can input up to 12 digits for the number.
x
y
The alarm on indicator (
) and the Hourly Time Signal on indicator (
) are
The number initially contains all hyphens. You can leave the hyphens or replace
shown on the display in all modes while these functions are turned on.
them with numbers or spaces.
If any alarm is on, the alarm on indicator is shown on the display when you
10. Press A to store your data and return to the Telememo record screen (without
change to another mode.
the cursor).
The name can show only three characters at a time, so longer text scrolls
To turn the snooze alarm on and off
continuously from right to left. The last character is indicated by the symbol after it.
1. In the Alarm Mode, press D to select the snooze alarm (
).
x
x
2. Press B to turn it on (
and
displayed) and off (
and
not displayed).
SNZ
SNZ
To recall Telememo records
x
The snooze alarm on indicator (
or
) is shown on the display in all
SNZ
In the Telememo Mode, use D (+) and B () to scroll through Telememo records on
modes while this function is turned on.
the display.
To edit a Telememo record
1. In the Telememo Mode, scroll through the records and display the one you want to
edit.
2. Hold down A until the flashing cursor appears on the display.
3. Use C to move the flashing to the character you want to change.
4. Use B and D to change the character.
For details on inputting characters, see ŇTo create a new Telememo record (step
3 for name input and 7 for number input).
5. After making the changes that you want, press A to store them and return to the
Telememo record screen.
To delete a Telememo record
1. In the Telememo Mode, scroll through the records and display the one you want to
delete.
2. Hold down A until the flashing cursor appears on the display.
3. Press B and D at the same time to delete the record.
The message
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 A to return to the Telememo record screen.
2
USERS GUIDE 2453/2642
Stopwatch
Reference
The stopwatch lets you measure elapsed time, split times,
This section contains more detailed and technical information about watch operation.
Seconds
and two finishes.
It also contains important precautions and notes about the various features and
Minutes
The display range of the stopwatch is 59 minutes,
functions of this watch.
59.99 seconds.
The stopwatch continues to run, restarting from zero
Auto Display
after it reaches its limit, until you stop it.
The Auto Display feature of this watch automatically
The stopwatch measurement operation continues even
cycles through the available color patterns.
if you exit the Stopwatch Mode.
Exiting the Stopwatch Mode while a split time is frozen
To turn off Auto Display
on the display clears the split time and returns to
Press any button to turn off Auto Display.
elapsed time measurement.
Doing so also performs the corresponding button function
Timekeeping
All of the operations in this section are performed in the
Mode time
as described below.
Stopwatch Mode, which you enter by pressing C.
A or B: Enters the Timekeeping Mode.
1/100 second
C: Enters the Telememo Mode.
D: Toggles between 12-hour and 24-hour formats.
To measure times with the stopwatch
L: Turns on the backlight
Turning off Auto Display also returns to the default color
Elapsed Time
pattern.
Stop
Re-start
Stop
Clear
Start
To turn on Auto Display
Hold down C for about two seconds until the watch beeps.
Split Time
Note that Auto Display cannot be performed while a setting screen is on the display.
Auto Return Features
Split
Split release
Stop
Clear
Start
If you leave the watch in the Telememo Mode for two or three minutes without
(SPLIT displayed)
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
Two Finishes
minutes without performing any operation, the watch automatically saves any
settings you have made up to that point and exits the setting screen.
Split
Stop
Split release
Clear
Start
Data and Setting Scrolling
First runner
Second runner
Display time of
finishes.
finishes.
second runner.
The B and D buttons are used in various modes and setting screens to scroll
Display time of
through data on the display. In most cases, holding down these buttons during a scroll
first runner.
operation scrolls through the data at high speed.
Initial Screens
Countdown Timer
When you enter the Telememo or Alarm Mode, the data you were viewing when you
last exited the mode appears first.
The countdown timer can be set within a range of
Minutes
1 minute to 24 hours. An alarm sounds when the
Backlight Precautions
Hours
countdown reaches zero.
The backlight uses an EL (electro-luminescent) panel that causes the entire display to
The initial default countdown start time when you
glow for easy reading in the dark.
purchase the watch or after you have its battery
In any mode, press L to illuminate the display for about two seconds.
replaced is 5 minutes.
The electro-luminescent panel that provides illumination loses power after very long
Countdown timer functions are available in the
use.
Countdown Timer Mode, which you enter pressing C.
The illumination provided by the backlight may be hard to see when viewed under
direct sunlight.
To use the countdown timer
The watch may emit an audible sound whenever the display is illuminated. This is
Press D while in the Countdown Timer Mode to start the
Timekeeping
due to vibration of the EL panel used for illumination, and does not indicate
countdown timer.
Mode time
malfunction.
When the end of the countdown is reached, the alarm
Seconds
The backlight automatically turns off whenever an alarm sounds.
sounds for 10 seconds or until you stop it by pressing
Frequent use of the backlight shortens the battery life.
any button. The countdown time is automatically reset to
its starting value after the alarm stops.
Press D while a countdown operation is in progress to pause it. Press D again to
Character List
resume the countdown.
To completely stop a countdown operation, first pause it (by pressing D), and then
press B. This returns the countdown time to its starting value.
To set the countdown start time
1. In the Countdown Timer Mode, hold down A until the hour setting of the
countdown start time starts to flash, which indicates the setting screen.
2. Press C to move the flashing between the hour and minute settings.
3. While a setting is flashing, use D (+) and B () to change it.
To set the starting value of the countdown time to 24 hours, set
.
0:00
4. Press A to exit the setting screen.
Dual Time
The Dual Time Mode lets you keep track of time in a
Dual time
different time zone.
To set the Dual Time
1. Press C to enter the Dual Time Mode.
2. Use D, B, and A to set the Dual Time Mode time.
Each press of D (+) and B () changes the time
setting in 30-minute increments.
Pressing A sets the Dual Time Mode to the same time
as the Timekeeping Mode.
Timekeeping Mode time
3