CASIO 2787 User Manual
MA0311-EA
Operation Guide 2787
About This Manual
• Button operations are indicated using the letters shown
in the illustration.
• Most of the display examples in this manual show only
the digital display, without the analog hands, as shown
in the lower 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.
General Guide
• Press C to change from mode to mode.
• In any mode, press B to illuminate the display.
Timekeeping Mode World Time 1 Mode World Time 2 Mode Alarm Mode Stopwatch Mode Hand Setting Mode
Press .
Animation area
Timekeeping
This watch features separate digital and analog timekeeping. The procedures for
setting the digital time and analog time are different.
• In the Timekeeping Mode, you can press D to change the display format as shown
below.
World time hands
Month – Day Animation area (Seconds)
• After the seconds count reaches 30, various animations play for about two seconds
in the animation area.
• The World Time hands show the hour in the cities selected for World Time 1 and
World Time 2. See “World Time Hands” for more information.
Digital Time and Date
Use the Timekeeping Mode to set and view a digital display of the current time and date.
When setting the digital time, you can also configure settings for the display
illumination duration, summer time (Daylight Saving time or DST), your Home City
code (the code for the city where you normally use the watch), and the 12/24-hour
format.
• This watch is preset with a number of city codes, each of which represents the time
zone where that city is located. When setting the digital time, it is important that you
select the correct city code for your Home City. If your location is not included in the
preset city codes, select the preset city code that is in the same time zone as your
location.
• Note that all of the times for the World Time Mode city codes are displayed in
accordance with the digital time and date settings you configure in the Timekeeping
Mode.
• After you correctly set your Home City time and date, you can set the watch up for
timekeeping with a different city code simply by changing the Home City code in the
Timekeeping Mode.
To set the digital time and date
3. Press C to move the flashing in the sequence shown below to select the other settings.
Seconds DST Home City Code Hour Minutes
Day Month Year 12/24-Hour Format
Press .
Day
Day of week
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. Press C twice to move the flashing to the Home City
code setting (see the illustration below), and then use
B and D to select the code you want.
• Make sure you select your Home City code before
changing any other setting.
• For full information on city codes, see the “City Code
Table”.
World Time 2 city code
PM indicator
Day Seconds
Hour : Minutes
World Time
1 city code
• The animation area shows different animated characters, depending on the mode
and the operation being performed.
4. When the setting you want to change is flashing, use B and D to change it as
described below.
Screen
To do this:
Reset the seconds to AA
Toggle the display illumination duration setting
between 1.5 second ( ) and 2.5 seconds ( )
Toggle between Daylight Saving Time (ON)
OFF
and Standard Time (OFF)
Change the Home City code
TYO
Change the hour or minutes
Toggle between 12-hour (BCH) and 24-hour
BCH
(C@H) timekeeping
CAA@
Change the year
Change the month or day
5. Press A to exit the setting screen.
• Resetting the seconds only (without changing the DST, Home City code, hour, or
minute setting) causes the analog minute hand setting to be adjusted automatically.
• See “Digital Time Daylight Saving Time (DST) Setting” below for details about the
DST setting.
• The day of the week is automatically displayed in accordance with the date (year,
month, and day) settings.
Digital Time Daylight Saving Time (DST) Setting
Daylight Saving Time (summer time) advances the digital time setting by one hour
from Standard Time. Remember that not all countries or even local areas use Daylight
Saving Time.
To toggle the Timekeeping Mode digital time between DST and Standard Time
DST indicator
Setting the Analog Time
Perform the procedure below when the time indicated by the analog hands does not
match the time of the digital display.
To adjust the analog time
Hour hand Minute hand
• If you need to advance the analog time setting a long way, hold down D until the
time starts advancing at high speed, and then press B. This locks the highspeed hand movement, so you can release the two buttons. High-speed hand
movement continues until you press any button. It will also stop automatically
after the time advances 12 hours or if an alarm (Daily Alarm or Hourly Time
Signal) starts to sound.
4. Press A to exit the setting screen.
• The watch will automatically adjust the minute hand slightly to match its internal
second count when you exit the setting screen.
• To return to the Timekeeping Mode, press C.
1. In the Timekeeping Mode, hold down A until the seconds
start to flash, which indicates the setting screen.
2. Press C once to display the DST setting screen.
3. Press D to toggle between Daylight Saving Time (
displayed) and Standard Time (OFF displayed).
4. Press A to exit the setting screen.
• The DST indicator appears on the Timekeeping and
Alarm Mode displays to indicate that Daylight Saving
Time is turned on.
1. In the Timekeeping Mode, press C five times to enter
the Hand Setting Mode.
2. Hold down A until the current digital time starts to
flash, which indicates the analog time setting screen.
3. Press D to advance the analog time setting by
20 seconds.
• Adjust the analog time so it matches the digital time.
• Holding down D advances the analog time setting at
high speed.
Do this:
Press D.
Press B while the seconds
count is flashing.
Press D.
Use D (east) and B (west).
Use D (+) and B (–).
Press D.
Use D (+) and B (–).
ON
1
Operation Guide 2787
World Time Modes
This watch has two World Time Modes named “World Time 1” and “World Time 2”,
each of which shows the current time in one of 40 cities (27 times zones) around the
globe. You can specify Daylight Saving Time or Standard Time for each of the World
Time cities.
World Time 1 Mode
World time hand
City code
Current time for
• The same procedure is used for selecting a city (city code) and for switching
between Daylight Saving Time and Standard Time in the World Time 1 Mode and
World Time 2 Mode. You can enter a World Time Mode using C.
• In the World Time 1 and World Time 2 Modes, the World Time hands show the hour
in the currently selected city. See “World Time Hands” for more information.
To view the time in another city
After entering the World Time 1 or World Time 2 Mode, press D to scroll eastwardly
through city codes.
• The city code is displayed for about one second, and then it is replaced with the
current time for that city code.
• For full information about city codes, see the “City Code Table”.
• If the current time shown for a city is wrong, it probably means there is a problem
with your Timekeeping Mode time and/or Home City code settings. Go to the
Timekeeping Mode and make the necessary adjustments.
To toggle a city code time between Standard Time and Daylight Saving Time
the selected city code
DST indicator
1. After entering the World Time 1 or World Time 2 Mode,
use D to display the city code whose Standard Time/
Daylight Saving Time setting you want to change.
2. Hold down A for about two seconds to toggle between
Daylight Saving Time (DST indicator displayed) and
Standard Time (DST indicator not displayed).
• The DST indicator is 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.
World Time 2 Mode
World time hand
City code
Current time for
the selected city code
Alarm
Alarm time
(Hour : Minutes)
AM indicator
Alarm on
indicator
• When setting the alarm time using the 12-hour format, take care to set the time
4. Press A to exit the setting screen.
Alarm Operation
The alarm sounds at the preset time for about 10 seconds, regardless of the mode the
watch is in.
• To stop the alarm tone after it starts to sound, press any button.
• Alarm and Hourly Time Signal operations are performed in accordance with the
Timekeeping Mode digital time.
To test the alarm
In the Alarm Mode, hold down D to sound the alarm.
To turn the Daily Alarm and the Hourly Time Signal on and off
In the Alarm Mode, press D to cycle through the settings as shown below.
• The alarm on indicator and the Hourly Time Signal on indicator are shown on the
display in all modes while these functions are turned on.
Hourly time
signal on
indicator
correctly as a.m. (A indicator) or p.m. (P indicator).
Alarm On Indicator / Hourly Time Signal On Indicator
Alarm On
Signal On
When the alarm is turned on, the alarm sounds when the
alarm time is reached.
You can also turn on an Hourly Time Signal, which will
cause the watch to beep twice every hour on the hour.
• All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C.
To set the alarm time
1. In the Alarm Mode, hold down A until the hour setting
of the alarm time starts to flash, which indicates the
setting screen.
• This operation automatically turns on the alarm.
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.
Alarm Off
Signal Off
Alarm On
Signal Off
Alarm Off
Signal On
Stopwatch
The stopwatch lets you measure elapsed time, split times,
and two finishes.
• 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
Minutes
Seconds
1/100 second
if you exit the Stopwatch Mode.
• Exiting the Stopwatch Mode while a split time is frozen
on the display clears the split time and returns to
elapsed time measurement.
• All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing C.
To measure times with the stopwach
Elapsed Time
Start
Split Time
Start
Two Finishes
Start
Stop Re-start Stop
Split
( ' Flashes)
Split Stop Split release Clear
First runner
finishes.
Display time of
first runner.
Split release Stop Clear
Second runner
finishes.
Display time of
second runner.
Clear
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.
World Time Hands
World Time 1 hour hand
World Time 2 hour hand
Yangon hour
New York hour
Tokyo hour
Tokyo and
New York minute
Yangon minute
(Timekeeping Mode
minute +30)
Auto Return Feature
• If you leave the watch in the Alarm 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 on the display for two or three minutes
without performing any operation, the watch automatically exits the setting screen.
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 World Time 1 or World Time 2 Mode, the data you were viewing
when you last exited the mode appears first.
Timekeeping
• Resetting the seconds to AA while the current count is in the range of 30 to 59
causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are
reset to
AA without changing the minutes.
• With the 12-hour format, the P (PM) indicator appears on the display for times in the
range of noon to 11:59 p.m. and the A (AM) indicator appears 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 year can be set in the range of 2000 to 2039.
• The watch’s 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 watch’s batteries replaced.
The World Time hands show the hour in the cities
selected for World Time 1 and World Time 2. The minute
is indicated by the analog minute hand of Timekeeping
Mode time.
• In order for the World Time hands to operate correctly,
the Timekeeping Mode digital time (Home City time) and
analog time must be synchronized.
• The World Time hands show only the current mode’s
time in the World Time 1 Mode and World Time 2 Mode.
In all other modes, they show both the World Time 1 and
World Time 2 times.
• Each of the World Time hands indicates one of
12 hours. A PM indicator (P) appears for PM times,
while no indicator is displayed for AM times.
• When the difference between your Home City time and
a World Time Mode city has a half hour fractional part,
be sure to add or subtract a half hour from the reading
shown by the minute hand.
• The illustration shows how to read the display when
TYO (Tokyo, GMT differential = +09.0) is selected as
the Home City,
is selected for World Time 1, and
GMT differential = –05.0) is selected for World Time 2.
RGN (Yangon, GMT differential = +06.5)
NYC (New York,
2
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