Operation Guide 3786
1
MO0505-EA
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.
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.
· 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.
L
L
L
Stopwatch Mode
Countdown Timer Mode
Alarm Mode
L
Timekeeping Mode
Press C.
L
L
World Time Mode
Hand Setting Mode
General Guide
· Press C to change from mode to mode.
· In any mode, press B to illuminate the face of the watch.
Timekeeping
Use the Timekeeping Mode to set and view the current time and date.
· When setting the time, you can also configure settings for the illumination duration
and the 12/24-hour format.
· All of the operations in this section are performed in the Timekeeping Mode, which
you can enter by pressing C.
L
Press A.
Hour : Minutes
PM indicator
L
A
Setting the Digital Time and Date
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 (the city where you normally use the
watch). 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.
To set the digital time and date
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Press B or D to select the city code you want.
· Make sure you select your Home City code before
changing any other setting.
· See "City Code Table" for a complete list of available
city codes.
3. Press C to move the flashing in the sequence shown
below to select other settings.
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City code
4. When the setting you want to change is flashing, use B and/or D to change it as
described below.
Seconds
Hour
12/24-Hour
Format
Minutes
Year
DST
Day
Month
City Code
Screen:
To do this:
Change the city code
Cycle between Daylight Saving Time
(
ON), and Standard Time (OFF)
Toggle between 12-hour (
12H) and
24-hour (
24H) timekeeping
Do this:
Use D (east) and B (west).
Press D.
Press D.
Reset the seconds to
00
Toggle the illumination duration
setting between 1.5 seconds ( ) and
2.5 seconds ( )
Change the hour or minutes
Change the year
Change the month or day
Press D.
Press B.
Use D (+) and B ().
· For information about settings other than the time and date, see the following.
Illumination duration: Illumination
5. Press A to exit the setting screen.
· When you exit the setting screen, the analog hands are adjusted automatically to
match the digital time. See "Analog Timekeeping" for more information.
· See "Daylight Saving Time (DST)" below for details about the DST setting.
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 the Timekeeping Mode digital time between DST and Standard Time
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Press C once and the DST setting screen appears.
3. Press D to toggle between Daylight Saving Time (
ON
displayed) and Standard Time (
OFF displayed).
4. Press A to exit the setting screen.
· The DST indicator appears on the display to indicate
that Daylight Saving Time is turned on.
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Analog Timekeeping
The analog time of this watch is synchronized with the digital time. The analog time
setting is adjusted automatically whenever you change the digital time.
Note
· The hands for the analog timepiece move to adjust to a new setting whenever any of
the following occurs.
When you change the digital time setting
When you change the Home City code and/or DST setting
· If the analog time does not match the digital time for any reason, use the procedure
described under "To adjust the analog time" to match the analog setting to the digital
setting.
· Whenever you need to adjust both the digital and the analog time settings manually,
make sure you adjust the digital setting first.
· Depending on how much the hands have to move in order to adjust to the digital
time, it may take some time before they stop moving.
When you want to do this:
Move the hand setting
forward 20 seconds
Move the hand setting a short
way forward at high speed
Perform this button operation:
· Press D.
· Hold down D.
· Release D when the hands reach the setting
you want.
To adjust the analog time
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 setting screen.
3. Use D and B to adjust the analog setting as
described below.
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4. Press A to exit the setting screen.
· The minute hand will be adjusted slightly to match the seconds when you exit the
setting screen.
· To return to the Timekeeping Mode, press C.
Move the hand setting a
long way forward at high
speed
· While holding down D to move the hands at
high speed, press B to lock the high-speed
hand movement.
· To stop the hand movement, press any
button.
· Hand movement stops automatically if the hour
hand makes one full (12-hour) revolution.
Operation Guide 3786
2
World Time
The World Time Mode digitally displays the current time in
48 cities (29 time zones) around the world.
· If the current time shown for a city is wrong, check your
Home City time settings and make the necessary
changes.
· All of the operations in this section are performed in the
World Time Mode, which you enter by pressing C.
City code
Current time in
selected city
To view the time in another city
While in the World Time Mode, press D to scroll through the city codes (time zones)
to the east.
· For full information on city codes, see the "City Code Table".
To toggle a city code time between Standard Time and Daylight Saving Time
1. In the World Time Mode, use D to display the city code
(time zone) whose Standard Time/Daylight Saving Time
setting you want to change.
2. Hold down A to toggle Daylight Saving Time (DST
indicator displayed) and Standard Time (DST indicator
not displayed).
DST indicator
· Note that you cannot use the World Time Mode to change the DST setting of the
Home City code you currently have selected in the Timekeeping Mode. See "To
toggle the Timekeeping Mode digital time between DST and Standard Time" for
information about turning the Home City code DST setting on and off.
· The DST indicator will appear 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.
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.
· 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.
1/100 second
Minutes
Seconds
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.
To measure times with the stopwatch
Countdown Timer
You can set the countdown timer within a range of one to
60 minutes. An alarm sounds when the countdown
reaches zero.
· All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
C.
Minutes
Seconds
To set the countdown start time
1. While the countdown start time is on the display in the Countdown Timer Mode,
hold down A until the current countdown start time 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.
2. While a setting is flashing, use D (+) and B () to change it.
3. Press A to exit the setting screen.
To use the countdown timer
Press D while in the Countdown Timer Mode to start the countdown timer.
· When the end of the countdown is reached, the alarm sounds for 10 seconds or until
you stop it by pressing 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
resume the countdown.
· To completely stop a countdown operation, first pause it (by pressing D), and then
press A. This returns the countdown time to its starting value.
Alarm
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.
Alarm time
(Hour : Minutes)
PM indicator
Hourly time signal
on indicator
Alarm on indicator
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.
· When setting the alarm time using the 12-hour format, take care to set the time
correctly as a.m. (no indicator) or p.m. (P indicator).
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.
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 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.
Alarm Off
Signal Off
Alarm On
Signal Off
Alarm Off
Signal On
Alarm On
Signal On
Alarm On Indicator / Hourly Time Signal On Indicator
Illumination
An LED (light-emitting diode) and light guide panel
illuminate the digital display for easy reading in the dark.
· See "Illumination Precautions" for other important
information.
To turn on illumination
In any mode, press B to illuminate the display.
· You can specify 1.5 seconds or 2.5 seconds as the
illumination duration. See "To set the digital time and
date" for more information.
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 or Hand Setting Mode for two or three minutes
without performing any operation, it automatically returns to the Timekeeping Mode.
· If you leave the watch with a flashing setting 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 Mode, the data you were viewing when you last exited
the mode appears first.
Timekeeping
· Resetting the seconds to 00 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 00 without changing the minutes.
· 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 2099.
· 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 battery replaced.
· The current time for all city codes in the Timekeeping Mode and World Time Mode is
calculated in accordance with the Greenwich Mean Time (GMT) differential for each
city, based on your Home City time setting.
· GMT differential is calculated by this watch based on Universal Time Coordinated
(UTC*) data.
* UTC is the world-wide scientific standard of timekeeping. It is based upon carefully
maintained atomic (cesium) clocks that keep time accurately to within microseconds. Leap
seconds are added or subtracted as necessary to keep UTC in sync with the Earth's rotation.
The reference point for UTC is Greenwich, England.
Operation Guide 3786
3
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 PM indicator (P) appears on the display for times in the
range of noon to 11:59 p.m. and no 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.
Illumination Precautions
· Illumination may be hard to see when viewed under direct sunlight.
· Illumination automatically turns off whenever an alarm sounds.
· Frequent use of illumination runs down the battery.
Pago Pago
Honolulu
Anchorage
Vancouver
Los Angeles
Edmonton
Denver
Mexico City
Winnipeg
Chicago
Miami
Toronto
New York
Caracas
Halifax
St. Johns
Rio De Janeiro
Praia
City
City
GMT
Other major cities in same time zone
Code
Differential
City Code Table
PPG
HNL
ANC
YVR
LAX
YEA
DEN
MEX
YWG
CHI
MIA
YTO
NYC
CCS
YHZ
YYT
RIO
RAI
11.0
10.0
09.0
08.0
07.0
06.0
05.0
04.0
03.5
03.0
01.0
Papeete
Nome
San Francisco, Las Vegas,
Seattle/Tacoma, Dawson City
El Paso
Houston, Dallas/Fort Worth, New Orleans
Montreal, Detroit, Boston,
Panama City, Havana, Lima, Bogota
La Paz, Santiago, Port Of Spain
Sao Paulo, Buenos Aires, Brasilia, Montevideo
Lisbon
London
Barcelona
Madrid
Paris
Milan
Rome
Berlin
Stockholm
Athens
Cairo
Jerusalem
Moscow
Jeddah
Tehran
Dubai
Kabul
Karachi
Delhi
+00.0
+01.0
+02.0
+03.0
+03.5
+04.0
+04.5
+05.0
+05.5
Dublin, Casablanca, Dakar, Abidjan
Amsterdam, Algiers, Hamburg, Frankfurt, Vienna
Helsinki, Istanbul, Beirut, Damascus,
Cape Town
Kuwait, Riyadh, Aden, Addis Ababa, Nairobi
Shiraz
Abu Dhabi, Muscat
Male
Mumbai, Kolkata
LIS
LON
BCN
MAD
PAR
MIL
ROM
BER
STO
ATH
CAI
JRS
MOW
JED
THR
DXB
KBL
KHI
DEL
Dhaka
Yangon
Bangkok
Hong Kong
Seoul
Tokyo
Adelaide
Guam
Sydney
Noumea
Wellington
+06.0
+06.5
+07.0
+08.0
+09.0
+09.5
+10.0
+11.0
+12.0
Colombo
Jakarta, Phnom Penh, Hanoi, Vientiane
Singapore, Kuala Lumpur, Beijing, Taipei, Manila, Perth,
Ulaanbaatar
Pyongyang
Darwin
Melbourne, Rabaul
Port Vila
Christchurch, Nadi, Nauru Island
DAC
RGN
BKK
HKG
SEL
TYO
ADL
GUM
SYD
NOU
WLG
· Based on data as of December 2004.