G-Shock G-2800-1 User Manual
MO0302-A
USER’S GUIDE 2534/2654
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to carefully read this manual and keep it on hand for later reference
when necessary.
Expose the watch to bright light to charge its battery before using it.
You can use this watch even as its battery is being charged by exposure to bright
light.
• Be sure to read “Battery” of this manual for important information you need
to know when exposing the watch to bright light.
If the display of the watch is blank...
If the SLEEP indicator is on the display, it means that the
display is blank because the watch’s Power Saving
function has turned off the display to conserve power.
Power Saving automatically turns off the display and puts
the watch into a sleep state whenever your watch is left for
a certain period where it is dark.
• The initial factory default setting is Power Saving on.
• The watch recovers from the sleep state if you move it to
a well-lit area
the watch towards your face for reading.
It can take up to five seconds for the display to turn on.
*
• See “Power Saving Function” for more information.
, if you press any button, or if you angle
*
General Guide
• Press C to change from mode to mode.
• In any mode, press L to illuminate the display.
Timekeeping Mode
▲
Stopwatch Mode
Press C.
H
About This Manual
(Light)
Telememo Mode
▲
• Button operations are indicated using the letters shown
in the illustration.
• 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 “Reference” section.
World Time Mode
▲
▲
Countdown Timer ModeAlarm Mode
▲
Timekeeping
Hour : Minutes Seconds
Year
Day of week
Month – Day
PM indicator
3. When the setting you want to change is flashing, use D and B to change it as
described below.
Setting
Seconds
Hour, Minutes
12/24-Hour
Format
Year,Month,Day
Power Saving
4. Press A to exit the setting screen.
• See “Power Saving Function” for details about configuring Power Saving settings.
• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all modes.
• The day of the week is automatically displayed in accordance with the date (year,
month, and day) settings.
Use the Timekeeping Mode to set and view the current
time and date.
To set the time and date
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. Press C to move the flashing in the sequence shown
below to select other settings.
12/24-Hour
Forma t
Screen
Seconds
Power Saving
Hour
Minutes
Day Month Ye a r
Press D to reset to 00.
Use D (+) and B (–) to change the setting.
Press D to toggle between 12-hour (12H) and
24-hour (24H) timekeeping.
Use D (+) and B (–) to change the setting.
Press D to toggle Power Saving on (ON) and
off (OFF).
Button Operation
Telememo
Remaining memory
The Telememo Mode lets you store up to 30 records, each
containing name and telephone number data. Records are
automatically sorted based on the characters of the name.
You can recall records by scrolling through them on the
display.
• See “Sort Table” for details on how the watch sorts
Name
records.
• All of the operations in this section are performed in the
Telememo Mode, which you enter by pressing C.
To create a new Telememo record
Name area
Number area
New Data Screen
(space)
4. When the character you want is at the cursor position, press C to move the cursor
to the right.
5. Repeat steps 3 and 4 until the name is complete.
• You can input up to eight characters for the name.
6. After you input the name, press C as many times as necessary to move the cursor
to the number area.
• When the cursor is located at the eighth space of the name area, moving the
cursor to the right causes it to jump to the first digit of the number. When the
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.
7. In the number area, use D and B to cycle through numbers and symbols
(hyphen, space) at the cursor position. The characters cycle in the sequence shown
below.
Press D.
Press B.
8. When the character you want is at the cursor position, press C to move the cursor
to the right.
9. Repeat steps 7 and 8 until you complete number input.
• You can input up to 12 digits for the number.
10. After inputting your data, press A to store it.
• After data storage is complete, the cursor appears in the name area of the
display, ready for input of a new Telememo record.
11. Input more data (starting from step 3) or press A again to return to the Telememo
record screen (without the cursor).
• The name can show only three characters at a time, so longer text scrolls
continuously from right to left. The last character is indicated by the symbol
1. In the Telememo Mode, use B and D to cycle through
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 message FULL appears on the display, it
means that memory is full. To store another record,
you will first have to delete some of the records stored
in memory.
2. Hold down A until the flashing cursor (_) appears in
the name area of the display.
3. In the name area, use D and B to cycle through
characters at the cursor position. The characters cycle
in the sequence shown below.
Press D.
A to Z
0 to 9 -.:/
Press B.
x
0 to 9
(space)
after it.
Telephone number
1
USER’S GUIDE 2534/2654
To recall Telememo records
In the Telememo Mode, use D (+) and B (–) to scroll through Telememo records on
the display.
• Pressing D while the last Telememo record is on the display or B while the first
record is on the display displays the new data screen.
To edit a Telememo record
1. In the Telememo Mode, use D (+) and B (–) to 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 D (+) and B (–) to change the character.
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, use D (+) and B (–) to 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. Hold down D and B until the watch beeps and
display.
• The message
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.
CLR appears, which indicates that the record is being deleted.
CLR stops flashing on the
World Time
GMT differential
City Code
Timekeeping Mode time
Current time in the zone
of the selected city code
To view the time in another city code
In the World Time Mode, press D to scroll through city codes (time zones) to the east
or B to scroll to the west.
To set the World Time
Daylight Saving Time (DST)
Daylight Saving Time (summer time) advances the time setting by one hour from
Standard Time. Remember that not all countries or even local areas use Daylight
Saving Time.
To toggle a city code time between Standard Time and Daylight Saving Time
The World Time Mode shows you the current time in 27
cities (29 time zones) around the world.
• The time settings of the Timekeeping Mode and the
World Time Mode are independent from each other, so
you must make separate settings for each.
• Whenever you change the time setting for any city in the
World Time Mode, the settings of all other cities are
changed accordingly.
• For full information on city codes, see the “City Code
Tab l e”.
• All of the operations in this section are performed in the
World Time Mode, which you enter by pressing C.
1. In the World Time Mode, use D and B to scroll
through the city code (time zone) and find the one you
want.
2. Hold down A until the hour setting of the world time
starts to flash, which indicates the setting screen.
3. Press C to move the flashing between the hour and
minute settings.
4. While a setting is flashing, use D (+) and B (–) to
change it.
5. Press A to exit the setting screen.
1. In the World Time Mode, use D and B to display the
city code whose Standard Time/Daylight Saving Time
setting you want to change.
2. Hold down A until the hour setting of the world time
starts to flash, which indicates the setting screen.
3. Press L to toggle Daylight Saving Time (
and Standard Time (
4. Press A to exit the setting screen.
• The Daylight Saving Time indicator
GMT differential is on the display only. It does not
appear while the city code is on the display.
• Note that you cannot switch between Standard Time
and Daylight Saving Time while
city code.
• Note that the DST/Standard Time setting affects only the
currently displayed city code. Other city codes are not
affected.
• The
indicator is on the display whenever you display a
city code for which Daylight Saving Time is turned on.
not displayed).
displayed)
appears while the
GMT is selected as the
Countdown Timer
SecondsMinutes
Timekeeping Mode time
Configuring the Countdown Timer
The following are the settings you should configure before actually using the
countdown timer.
Countdown start time and reset time
Timer mode (auto-repeat, elapsed time)
Progress beeper on/off
• See “To configure the countdown timer” for information about setting up the timer.
The countdown timer can be set within a range of one
minute to 60 minutes. An alarm sounds when the
countdown reaches zero. The countdown timer has two
modes: auto-repeat and elapsed time, and a progress
beeper signals the progress of the countdown. All of this
makes the countdown timer a valuable tool for timing the
start of a yacht race.
• All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
C.
Reset Time
You can set a “reset time,” which is a kind of alternate countdown start time you can
recall with the press of a button any time a countdown operation is in progress.
Timer Mode
The countdown timer gives you a choice of two modes: auto-repeat and elapsed time.
Auto-repeat
Auto-repeat mode automatically restarts the countdown from the countdown start time
you set whenever zero is reached.
• Auto-repeat mode is best when timing the starts of match races.
• Even if you start a countdown operation from the reset time, the countdown
automatically restarts from the countdown start time whenever it reaches zero.
• Auto repeat timing repeats up to seven times.
Elapsed Time
When the end of the countdown is reached in the elapsed time mode, the timer
automatically switches to an elapsed time measurement operation.
• The elapsed time mode is best when timing the speed of yachts during ocean races.
• The elapsed time operation is performed in one-second increments up to 99 hours,
59 minutes, 59 seconds.
Countdown Timer Beeper Operations
The watch beeps at various times during a countdown so you can keep informed
about the countdown status without looking at the display. The following describes the
types of beeper operations the watch performs during a countdown.
Countdown End Beeper
The watch beeps each second of the final 10 seconds before a countdown reaches
zero, and at zero. The first five beeps (seconds 10 through 6) are higher pitched than
the final five beeps (seconds 5 through 1). The watch emits a longer beep to signal
when the countdown reaches zero.
• The countdown end beeper always sounds, regardless of the on/off status of the
progress beeper.
Progress Beeper
The progress beeper actually includes two beepers: a reset time beeper and a reset
period progress beeper.
• The reset time beeper and reset period progress beeper sound only while the
progress beeper is turned on.
Reset Time Beeper
The reset time beeper is similar to the countdown end beeper. When the progress
beeper is turned on, the watch beeps each second of the final 10 seconds before the
countdown reaches the reset time.
Reset Period Progress Beeper
The reset period is the portion of the countdown between the reset time and zero.
When the progress beeper is turned on, the watch emits four short beeps at the top of
each minute during the reset period, and 30 seconds before the end of the
countdown.
Countdown Timer Examples
Countdown start time: 10 minutes; Reset time: 5 minutes; Timer mode: Auto-repeat;
Progress beeper: On
Start Time Reset Time
10'00"
Reset Time Beeper
Countdown start time: 10 minutes; Reset time: 5 minutes; Timer mode: Elapsed time;
Progress beeper: Off
Start Time Reset Time
10'00"
To configure the countdown timer
3. When the setting you want to change is flashing, use D and B to change it as
described below.
Setting
Start Time
Reset Time
Timer Mode
Progress
Beeper
4. Press A to exit the setting screen.
• The reset time setting must be less than the countdown start time setting.
1. While the countdown start time is on the display in the
2. Press C to move the flashing in the sequence shown
Screen Button Operations
Use D (+) and B (–) to change the setting.
• You can set a start time in the range of 1 to 60 minutes
Use D (+) and B (–) to change the setting.
• You can set a reset time in the range of 1 to 5 minutes
Press D to toggle between the auto-repeat mode (ON)
and the elapsed time mode (OFF).
• An auto-repeat indicator (
Press D to toggle progress beeper on (ON) and off (OFF).
• A progress beeper indicator (
Reset Period
Reset Period Progress Beeper
Countdown
End Beeper
Countdown Timer Mode, hold down A until the
countdown start time setting starts to flash, which
indicates the setting screen.
• If the countdown start time is not displayed, use the
procedure under “To use the countdown timer” to
display it.
below to select other settings.
Start
Time
in 1-minute increments.
in 1-minute increments.
repeat mode is selected.
setting it turned on.
Reset
Time
Timer
Mode
) appears when the auto-
Countdown
End Beeper
0'00"1'00" 0'30"2'00"3'00"4'00"5'00"
Elapsed time
measurement
0'00"5'00"
Progress
Beeper
) appears when this
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