Casio 3427 User manual

Operation Guide 3427
E-9
Switching Between Time Screens
Each press of Dcycles the time screens in the sequence shown below.
Displayed for one second
D D D
D
E-8
Timekeeping
The Timekeeping Mode’s Multi Time feature gives you
quick and easy access to the current time and date in
four different cities, numbered from T-1 (Time 1) through
T-4 (Time 4). T-1 is your Home City Time, and T-2,
T-3, and T-4 are Local Times. Local Times are kept in
synchronization with your Home City Time (T-1).
PM indicator
Day of week
Hour : Minutes Seconds
Month – Day
E-7
Alarm Mode Stopwatch Mode
CC
C
Countdown Timer
Mode
E-6
General Guide
xPress Cto change from mode to mode.
x
In any mode (except when a setting screen is on the display), press Bto illuminate
the display.
Timekeeping Mode World Time Mode
CC
E-5
To measure times with the stopwatch................................................................. E-31
To turn on illumination.......................................................................................... E-33
To specify the illumination duration.................................................................... E-33
To turn the auto light switch on and off .............................................................. E-35
To turn the button operation tone on and off ..................................................... E-38
To turn Flash Alert on and off .............................................................................. E-41
E-4
Procedure Lookup
The following is a handy reference list of all the operational procedures contained in
this manual.
To toggle the Timekeeping Mode time between DST and
Standard Time.................................................................................................... E-15
To view the time for another city code ................................................................ E-18
To toggle a city code time between Standard Time and
Daylight Saving Time ........................................................................................ E-19
To change your Home Time city to the current World Time city ...................... E-20
To set an alarm time.............................................................................................. E-22
To test the alarm.................................................................................................... E-24
To turn an alarm on and off .................................................................................. E-25
To turn the Hourly Time Signal on and off.......................................................... E-26
To configure the countdown timer ...................................................................... E-28
To use the countdown timer................................................................................. E-29
E-3
Contents
Indicators ................................................................................................................. E-2
General Guide.......................................................................................................... E-6
Timekeeping............................................................................................................. E-8
World Time............................................................................................................. E-18
Alarms .................................................................................................................... E-21
Countdown Timer.................................................................................................. E-27
Stopwatch .............................................................................................................. E-30
Illumination ............................................................................................................ E-32
Reference ............................................................................................................... E-36
Specifications ........................................................................................................ E-44
E-2
Indicators
Graphic area A
page E-36
Graphic area B
page E-36
Auto light switch on indicator
page E-32, E-35
DST indicator
page E-15, E-19
PM indicator
page E-8, E-16
Hourly time signal on indicator
page E-26
Alarm on indicator
page E-21
Mute indicator
page E-37
Flash Alert on indicator
page E-41
E-1
About This Manual
xDepending on the model of your watch, display text appears
either as dark figures on a light background or light figures
on a dark background. All sample displays in this manual are
shown using dark figures on a light background.
xButton operations are indicated using the letters shown in
the illustration.
xEach 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.
MA1310-EA
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Operation Guide 3427
E-19
To toggle a city code time between Standard Time and Daylight Saving Time
1. In the World Time Mode, use D(east) to display the city
code (time zone) whose Standard Time/Daylight Saving
Time setting you want to change.
2. Hold down Afor about one second to toggle Daylight
Saving Time (DST displayed) and Standard Time (DST
not displayed).
xThe DST indicator is on the display whenever you display
a city code for which Daylight Saving Time is turned on.
xNote that the DST/Standard Time setting affects only
the currently displayed city code. Other city codes are
not affected.
xNote that you cannot switch between Standard Time
and Daylight Saving Time while UTC is selected as the
city code.
DST indicator
E-18
World Time
World Time shows the current time in 48 cities (31 time
zones) around the world.
xAll of the operations in this section are performed in
the World Time Mode, which you enter by pressing C
(page E-6).
To view the time for another city code
In the World Time Mode, press Dto scroll eastwardly
through city codes.
xFor full information about city codes, see the “City Code
Table” at the back of this manual.
xIf the current time for a city is wrong, check your
Timekeeping Mode time and time zone settings and
make the necessary changes.
City code
Current time and date in
the zone of the selected
city code
E-17
Swapping the Home City Time with a Local Time
You can use the procedure below to swap the current Home City Time (T-1) with one
of the Local Times (T-2, T-3, T-4).
1. In the Timekeeping Mode, use Dto display the Local Time that you want to swap
with the Home City Time.
2. Press Aand Bat the same time.
E-16
12/24-Hour Format
xWith 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 no indicator appears to the left of the
hour digits for times in the range of midnight to 11:59 a.m.
xWith the 24-hour format, times are displayed in the range of 0:00 to 23:59, without
any indicator.
xThe 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all other modes.
Changing the City Setting of a Local Time
You can select any one of the city codes in the table at the back of this manual as a
Local Time city.
1. Display the Local Time whose city setting you want to change, and then hold down
Afor about one second until the current city code starts to flash.
2. Use D(east) and B(west) to select the city code you want.
3. Press Cto display the DST setting screen.
4. Press Dto toggle between Daylight Saving Time ( displayed) and Standard
Time ( displayed).
5. After the settings are the way you want, press A.
E-15
To toggle the Timekeeping Mode time between DST and Standard Time
1. Use Dto display the current Home City Time (T-1)
screen.
2. Hold down Auntil the seconds start to flash, which
indicates the setting screen.
3. Press Cto display the DST setting screen.
4. Press Dto toggle between Daylight Saving Time
(displayed) and Standard Time ( displayed).
5. Press Ato exit the setting screen.
xThe DST indicator appears on the Timekeeping screen to
indicate that Daylight Saving Time is turned on.
DST indicator
E-14
xSee “Daylight Saving Time (DST)” on page E-14 for details about DST setting.
xFor information about Flash Alert, see “Flash Alert” (page E-41).
5. Press Ato exit the setting screen.
xThe day of the week is displayed automatically in accordance with the date (year,
month, and day) settings.
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.
E-13
Screen To do this: Do this:
Reset the seconds to .
Press D.
Toggle between Daylight Saving Time ( )
and Standard Time ( ).
Change the city code. Use D(east) and B(west).
Change the hour or minutes. Use D(+) and B(–).
Toggle between 12-hour ( ) and 24-hour
( ) timekeeping. Press D.
Change the year. Use D(+) and B(–).
Change the month or day.
Toggle the setting between 1.5 seconds
() and 3 seconds ( ).
Press D.
Toggle between Flash Alert on ( ) and
off ( ).
E-12
Seconds DST
Illumination Duration Setting
MinutesHour
Year
12/24-Hour FormatFlash Alert
City Code
Day Month
C C C C CC
CCCCC
4. When the setting you want to change is flashing, use Dand Bto change it as
described below.
E-11
Changing the Current Home City Time and Date Settings
1. Use Dto display the current Home City Time (T-1)
screen.
2. Hold down Auntil the seconds start to flash, which
indicates the setting screen.
3. Press Cto move the flashing in the sequence shown
below to select other settings.
E-10
xWhile the Home City Time (T-1) screen is displayed, pressing Awill switch the day
of the week / month-day indication to the currently selected Home City code and the
T-1 indicator for about one second.
xYou can change the current time setting for your Home City Time (T-1) only.
xFor Local Times (T-2, T-3, T-4), you only can change the city code and DST setting.
Scrolling through the Time Screens
xIn the Timekeeping Mode (page E-6), holding down Dfor about three seconds will
cycle the time screens in sequence, from T-1 through T-4.
xPressing any button will display the Home City Time (T-1) screen.

Operation Guide 3427
E-29
To use the countdown timer
Press Dwhile in the Countdown Timer Mode to start the
countdown timer.
xWhen the end of the countdown is reached, the alarm
sounds for ten seconds or until you stop it by pressing
any button. The countdown time is reset to its starting
value automatically when the alarm sounds.
xPress Dwhile a countdown operation is in progress to
pause it. Press Dagain to resume the countdown.
xTo stop a countdown operation completely, first pause
it (by pressing D), and then press A. This returns the
countdown time to its starting value.
E-28
To configure the countdown timer
1. While the countdown start time is on the display in the
Countdown Timer Mode, hold down Auntil the current
countdown start time starts to flash, which indicates the
setting screen.
xIf the countdown start time is not displayed, use the
procedure under “To use the countdown timer” (page
E-29) to display it.
2. Press Cto move the flashing in the sequence shown
below to select other settings.
Hours
C
Minutes
C
Seconds
C
3. When the setting you want to change is flashing, use D(+) and B(–) to change
the flashing item.
xTo specify a countdown start time of 24 hours, set .
4. Press Ato exit the setting screen.
E-27
Countdown Timer
The countdown timer can be set within a range of one
second to 24 hours. An alarm sounds when the countdown
reaches zero.
xAll of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing C
(page E-7).
Minutes
Hours
Seconds
1/10 second
E-26
To turn the Hourly Time Signal on and off
1. In the Alarm Mode, use Dto select the Hourly Time
Signal.
2. Press Ato toggle it on and off.
xThe Hourly Time Signal on indicator is shown on the
display in all modes while this function is turned on.
Hourly time signal on
indicator
E-25
To turn an alarm on and off
1. In the Alarm Mode, use Dto select an alarm.
2. Press Ato cycle through the alarm settings as shown below.
A A
Alarm Off One-Time Alarm
On
Daily Alarm On
A
xIn all modes, the alarm on indicator is shown for the alarm that is currently turned
on.
xThe alarm on indicator flashes while the alarm is sounding.
E-24
Alarm Operation
The alarm tone sounds at the preset time for 20 seconds, regardless of the mode the
watch is in.
xAlarm and Hourly Time Signal operations are performed in accordance with the
Home City Time (T-1).
xTo stop the alarm tone after it starts to sound, press any button.
To test the alarm
In the Alarm Mode, hold down Dto sound the alarm.
E-23
3. Press Cto move the flashing in the sequence shown below to select other
settings.
Hour CMinutes
CC
One-time Alarm/Daily Alarm Selection
4. While a setting is flashing, use Dand Bto change it as described below.
Screen To do this: Do this:
Change the hour and
minutes. Use D(+) and B(–).
xWith the 12-hour format, set the time correctly
as a.m. or p.m. (Pindicator).
/Toggle between One-
time Alarm and Daily
Alarm.
Press D.
One-time Alarm on:
Daily Alarm on:
5. Press Ato exit the setting screen.
E-22
To set an alarm time
1. In the Alarm Mode, use Dto scroll through the alarm
screens until the alarm number you want to set is
displayed. D D
DD
DD
2. After you select an alarm, hold down Auntil the hour setting of the alarm time
starts to flash, which indicates the setting screen.
xThis operation turns on the One-time Alarm automatically.
E-21
Alarms
Your watch has a total of five alarms, each of which you
can configure as a daily alarm or one-time alarm.
xDaily Alarm: Sounds at the preset time each day.
xOne-time Alarm: Sounds once at the preset time and then
is disabled automatically.
You can also turn on an Hourly Time Signal that causes
the watch to beep twice every hour on the hour.
xAll of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C(page E-7).
xAlarms operate in coordination with the current Home
City Time.
Alarm on indicator
Alarm number
Alarm time
(Hour : Minutes)
E-20
To change your Home Time city to the current World Time city
1. In the World Time Mode, use Dto display the city you want to make your new
Home Time city.
2. Press Aand Bat the same time.
xThis makes the World Time city you selected in step 1 your new Home Time city.

Operation Guide 3427
E-39
Scrolling
The Band Dbuttons 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 at high speed.
Initial Screens
When you enter the World Time or Alarm Mode, the data you were viewing when you
last exited the mode appears first.
Timekeeping
xResetting the seconds to 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 without changing the minutes.
xThe year can be set in the range of 2000 to 2099.
xThe 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.
E-38
To turn the button operation tone on and off
In any mode (except when a setting screen is on the display), hold down Cto toggle
the button operation tone on (the mute indicator not displayed) and off (the mute
indicator displayed).
xHolding down Cto turn the button operation tone on or off also causes the watch’s
current mode to change.
xThe mute indicator is displayed in all modes when the button operation tone is
turned off.
Auto Return Features
xIf you leave the watch in the Alarm Mode for two or three minutes without performing
any operation, it automatically changes to the Timekeeping Mode.
xIf 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.
E-37
xGraphic area B: In the Timekeeping Mode and World Time Mode, segments indicate
the current time (in units of one second). In the Countdown Timer
Mode and Stopwatch Mode, segments indicate the ongoing timer
measurement (in units of one second).
Button Operation Tone
The button operation tone sounds any time you press one
of the watch’s buttons. You can turn the button operation
tone on or off as desired.
xEven if you turn off the button operation tone, the alarms,
the Hourly Time Signal, and the countdown alarm all
operate normally.
Mute indicator
E-36
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.
Graphic Areas
There are two graphic areas named A and B.
xGraphic area A: In the Timekeeping Mode and World
Time Mode, segments indicate the
current time (in units of 10 seconds).
In the Countdown Timer Mode and
Stopwatch Mode, segments indicate the
ongoing timer measurement (in units of
1/10 second).
Graphic area B
Graphic area A
E-35
Warning!
xAlways make sure you are in a safe place whenever you are reading the watch
using the auto light switch. Be especially careful when running or engaged
in any other activity that can result in accident or injury. Also take care that
sudden illumination by the auto light switch does not startle or distract others
around you.
xWhen you are wearing the watch, make sure that its auto light switch is turned
off before riding on a bicycle or operating a motorcycle or any other motor
vehicle. Sudden and unintended operation of the auto light switch can create a
distraction, which can result in a traffic accident and serious personal injury.
To turn the auto light switch on and off
In the Timekeeping Mode, hold down Bfor about three seconds to toggle the auto
light switch on (auto light switch on indicator displayed) or off (auto light switch on
indicator not displayed).
xThe auto light switch on indicator is on the display in all modes while the auto light
switch is turned on.
xIn order to protect against running down the battery, the auto light switch turns off
automatically approximately six hours after you turn it on.
E-34
About the Auto Light Switch
While the auto light switch is enabled, illumination turns on whenever you position
your wrist as described below in any mode.
Moving the watch to a position that is parallel to the ground and then tilting it
towards you at more than 40 degrees causes illumination to turn on.
xWear the watch on the outside of your wrist.
Parallel to ground More than 40°
E-33
To turn on illumination
In any mode (except when a setting screen is on the display), press Bto turn on
illumination.
xYou can use the procedure above to select either 1.5 seconds or 3 seconds as the
illumination duration. When you press B, the illumination will remain on for about
1.5 seconds or 3 seconds, depending on the current illumination duration setting.
To specify the illumination duration
1. In the Timekeeping Mode, hold down Auntil the
seconds start to flash, which indicates the setting
screen.
2. While the seconds are flashing, press Cnine times to
display the illumination duration setting screen.
3. Press Dto toggle between 1.5 seconds ( ) and
3 seconds ( ).
4. Press Ato exit the setting screen.
E-32
Illumination
This watch has two LEDs (light-emitting diode) that cause
the entire display to glow for easy reading in the dark. The
watch’s auto light switch turns on illumination automatically
when you angle the watch for reading towards your face.
xThe auto light switch must be turned on (indicated by the
auto light switch on indicator) for it to operate.
xSee “Illumination Precautions” (page E-42) for more
important information.
Auto light switch on
indicator
E-31
To measure times with the stopwatch
Elapsed Time
DDDDA
Start Stop Re-start Stop Clear
Split Time
DAADA
Start Split
(SPL displayed)
Split release Stop Clear
Two Finishes
DADAA
Start Split
First runner
finishes. Display
time of first
runner.
Stop
Second runner
finishes.
Split release
Display time of
second runner.
Clear
E-30
Stopwatch
The stopwatch lets you measure elapsed time, split times,
and two finishes.
xA display range of the stopwatch is 23 hours, 59 minutes,
59.99 seconds.
xA stopwatch continues to run, restarting from zero after it
reaches its limit, until you stop it.
xA stopwatch measurement operation continues even if
you exit the Stopwatch Mode.
xExiting the Stopwatch Mode while a split time is frozen
on the display clears the split time and returns to elapsed
time measurement.
xAll of the operations in this section are performed in
the Stopwatch Mode, which you enter by pressing C
(page E-7).
Seconds
Minutes
Hours
1/100 second

Operation Guide 3427
L-3
City
Code City UTC Offset/ GMT Differential
DXB Dubai +4
KBL Kabul +4.5
KHI Karachi +5
DEL Delhi +5.5
KTM Kathmandu +5.75
DAC Dhaka +6
RGN Yangon +6.5
BKK Bangkok +7
SIN Singapore
+8
HKG Hong Kong
BJS Beijing
TPE Taipei
SEL Seoul +9
TYO Tokyo
ADL Adelaide +9.5
City
Code City UTC Offset/ GMT Differential
GUM Guam +10
SYD Sydney
NOU Noumea +11
WLG Wellington +12
L-2
City
Code City UTC Offset/ GMT Differential
PPG Pago Pago –11
HNL Honolulu –10
ANC Anchorage –9
YVR Vancouver –8
LAX Los Angeles
YEA Edmonton –7
DEN Denver
MEX Mexico City –6
CHI Chicago
NYC New York –5
SCL Santiago –4
YHZ Halifax
YYT St. Johns –3.5
RIO Rio De Janeiro –3
FEN
Fernando de Noronha –2
City
Code City UTC Offset/ GMT Differential
RAI Praia –1
UTC
0LIS Lisbon
LON London
MAD Madrid
+1
PAR Paris
ROM Rome
BER Berlin
STO Stockholm
ATH Athens
+2CAI Cairo
JRS Jerusalem
MOW* Moscow +3
JED Jeddah
THR Tehran +3.5
City Code Table
L-1
City Code Table
E-45
Stopwatch
Measuring unit: 1/100 second
Measuring capacity: 23:59' 59.99"
Measuring modes: Elapsed time, split time, two finishes
Illumination: LED (light-emitting diode); Selectable illumination duration
Other: Button operation tone on/off; Auto Light Switch; Flash alert
Battery: One lithium battery (Type: CR2025)
Approximately 7 years on type CR2025; 20 seconds of alarm operation (with flash
alert), 1.5 seconds of illumination per day
E-44
Specifications
Accuracy at normal temperature: ±15 seconds a month
Timekeeping: Hour, minutes, seconds, p.m. (P), month, day, day of the week
Time format: 12-hour and 24-hour
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Other: Multi Time (one Home City Time and three Local Times); Daylight Saving
Time (summer time)/Standard Time
World Time: 48 cities (31 time zones) and Coordinated Universal Time
Other: Standard Time/Daylight Saving Time (summer time); Home Time City/
World Time City swapping
Alarms: 5 alarms (One-time or Daily), Hourly Time Signal
Countdown Timer
Measuring unit: 1/10 second
Input range: 1 second to 24 hours (1-second increments, 1-minute increments and
1-hour increments)
E-43
xStatic electricity or magnetic force can interfere with proper operation of the auto
light switch. If illumination does not turn on, try moving the watch back to the starting
position (parallel with the ground) and then tilt it back towards you again. If this does
not work, drop your arm all the way down so it hangs at your side, and then bring it
back up again.
xUnder certain conditions, illumination may not turn on until about one second after
you turn the face of the watch towards you. This does not necessarily indicate
malfunction of the auto light switch.
xYou may notice a very faint clicking sound coming from the watch when it is shaken
back and forth. This sound is caused by mechanical operation of the auto light
switch, and does not indicate a problem with the watch.
E-42
Illumination Precautions
xIllumination loses power after very long use.
xIllumination may be hard to see when viewed under direct sunlight.
xIllumination will turn off automatically if an alarm starts to sound while Flash Alert is
turned off. When Flash Alert is turned on, illumination will flash with the alarm.
xFrequent use of illumination runs down the battery.
Auto light switch precautions
xAvoid wearing the watch on the inside of your wrist. Doing so causes the auto light
switch to operate when it is not needed, which shortens battery life. If you want to
wear the watch on the inside of your wrist, turn off the auto light switch feature.
xIllumination may not turn on if the face of the watch is
more than 15 degrees above or below parallel. Make sure
that the back of your hand is parallel to the ground.
xIllumination turns off after the preset illumination duration
(see “To specify the illumination duration” (page E-33)),
even if you keep the watch pointed towards your face.
More than 15 degrees
too high
E-41
Flash Alert
When Flash Alert is turned on, the illumination flashes for
the alarms, the Hourly Time Signal and the countdown
alarm.
To turn Flash Alert on and off
1. In the Timekeeping Mode, hold down Auntil the
seconds start to flash, which indicates the setting
screen.
2. Press Cten times to display the Flash Alert setting
screen.
3. Press Dto toggle Flash Alert on and off.
xThe Flash Alert on indicator is shown on the display in
all modes while this function is turned on.
4. Press Ato exit the setting screen.
Flash Alert on indicator
E-40
World Time
xThe seconds count of the World Time is synchronized with the seconds count of the
Timekeeping Mode.
xAll World Time Mode times are calculated from the current Home City Time in the
Timekeeping Mode using UTC time offset values.
xThe UTC offset is a value that indicates the time difference between a reference
point in Greenwich, England and the time zone where a city is located.
xThe letters “UTC” is the abbreviation for “Coordinated Universal Time”, which 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.

Operation Guide 3427
L-4
* As of June 2013, the official UTC offset for Moscow, Russia (MOW) has been
changed from +3 to +4, but this watch still uses an offset of +3 (the old offset)
for MOW. Because of this, you should leave the summer time setting turned on
(which advances the time by one hour) for the MOW time.
xThis table shows the city codes of this watch.
xThe rules governing global times (UTC offset and GMT differential) and summer
time are determined by each individual country.