Casio 3057 User Manual
MA0607-EA
Operation Guide 3057
About This Manual
• 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.
General Guide
• Press C to change from mode to mode.
• In any mode (except when a setting screen is on the display), press B to illuminate
the display.
Timekeeping Mode World Time Mode Stopwatch Mode Countdown Timer Mode Alarm Mode
Press .
Timekeeping
PM indicator
Day of week
Seconds
Month – Day
Hour : Minutes
To set the time and date
Seconds DST
3. When the setting you want to change is flashing, use D and B to change it as
described below.
Screen Do this:
To do this:
Reset the seconds to
Change the city code
Toggle between Daylight Saving Time ( )
and Standard Time ( )
Change the hour or minutes
Toggle between 12-hour ( ) and 24-hour
( ) timekeeping
Change the year, month, or day
• See “Daylight Saving Time (DST)” for details about the DST setting.
4. Press A to exit the setting screen.
• Resetting the seconds to
causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are
reset to
• With the 12-hour format, the
• With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without
• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
• 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
• The day of the week is automatically displayed in accordance with the date (year,
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.
without changing the minutes.
range of noon to 11:59 p.m. and no indicator appears for times in the range of
midnight to 11:59 a.m.
any indicator.
applied in all modes.
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.
month, and day) settings.
To toggle the Timekeeping Mode time between DST and Standard Time
On/Off status
DST indicator
Use the Timekeeping Mode to set and view the current
time and date.
Read this before you set the time and date !
The times displayed in the Timekeeping Mode and World
Time Mode are linked. Because of this, make sure you
select a city code for your Home City (the city where you
normally use the watch) before you set the time and date.
• To view the current Home City code setting, press A
while in the Timekeeping Mode.
• For full information on city codes, see the “City Code
Table”.
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.
City Code
Month
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. Press C twice to display the DST setting screen.
3. Press D to toggle between Daylight Saving Time (
and Standard Time (
4. Press A to exit the setting screen.
• The
Mode and Alarm Mode screen while Daylight Saving
Time is turned on.
Year 12/24-Hour FormatDay
while the current count is in the range of 30 to 59
(PM) indicator appears on the display for times in the
indicator is displayed on the Timekeeping
Hour Minutes
Press D.
Use D (east) and B (west).
Press D.
Use D (+) and B (–).
Press D.
Use D (+) and B (–).
).
)
World Time
World Time shows the current time in 48 cities (29 time zones) around the world.
• All of the operations in this section are performed in the World Time Mode, which
you enter by pressing C.
• In the World Time Mode, you can press A to change the display format as shown
below.
To view the time for another city code
In the World Time Mode, press D to scroll eastwardly through city codes.
• For full information about city codes, see the “City Code Table”.
• If the current time shown for a city is wrong, check your Timekeeping Mode time and
Home City code settings and make the necessary changes.
To toggle a city code time between Standard Time and Daylight Saving Time
• Note that the DST/Standard Time setting affects only the currently displayed city
code. Other city codes are not affected.
• In the World Time Mode, you can switch the city code you currently have selected
as your Timekeeping Mode Home City between Standard Time and DST. The
setting you select in the World Time Mode will also be applied in the Timekeeping
Mode.
City code
Month – Day
in selected city code
DST indicator
Current time in selected city code
Press .
Timekeeping Mode time (Hour : Minutes)
* The “P” indicator is not displayed
for the time displayed in the
World Time Mode.
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 for about one second to toggle between
Daylight Saving Time (
Standard Time (
• The
indicator is on the display whenever you
display a city code for which Daylight Saving Time is
turned on.
indicator displayed) and
indicator not displayed).
Stopwatch
1/100 second
Timekeeping Mode time
(Hour : Minutes)
* The “P” indicator
is not displayed for the
time displayed in
the Stopwatch Mode.
To measure times with the stopwatch
Elapsed Time
Start
Split Time
Start
Two Finishes
Start
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
if you exit the Stopwatch Mode.
• Exiting the Stopwatch Mode while a split time is frozen
Seconds Minutes
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.
Stop Re-start Stop Clear
Split
( displayed)
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.
1
Operation Guide 3057
Countdown Timer
Seconds
Timekeeping Mode time
(Hour : Minutes)
* The “P” indicator
is not displayed for the
time displayed in the
Countdown Timer Mode.
• 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.
To set the countdown start time
The countdown timer can be set within a range of
one minute to 24 hours. An alarm sounds when the
countdown reaches zero.
• The countdown operation continues even if you exit the
Countdown Timer Mode.
• All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
Minutes Hours
C.
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.
1. In the Countdown Timer Mode, hold down A until the
hours of the countdown start time start to flash, which
indicates the setting screen.
2. Press C to move the flashing between the hours and
minutes.
3. While a setting is flashing, use D (+) or B (–) to
change it.
• To set the starting value of the countdown time to
24 hours, set
4. Press A to exit the setting screen.
.
Alarms
Alarm number
On/Off status
Alarm time
(Hour : Minutes)
Timekeeping Mode time
(Hour : Minutes)
* The “P” indicator
is not displayed for the
time displayed in the
Alarm Mode.
To set an alarm time
• To set a one-time alarm, display one of the screens indicated by an alarm number
from
through . To set the snooze alarm, display the screen indicated by
.
• The snooze alarm repeats every five minutes.
2. After you select an alarm, hold down A until the hour setting of the alarm time
starts to flash, which indicates the setting screen.
• This operation turns on the alarm automatically.
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.
• 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. (
5. 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. In the case of the snooze alarm, the alarm operation is performed a total
of seven times, every five minutes, or until you turn the alarm off.
• To stop the alarm tone after it starts to sound, press any button.
• Performing any one of the following operations during a 5-minute interval between
snooze alarms cancels the current snooze alarm operation.
Displaying the Timekeeping Mode setting screen
Displaying the
To test the alarm
In the Alarm Mode, hold down D to sound the alarm.
To turn an alarm on and off
Alarm time
(Hour : Minutes)
On/Off status
Snooze alarm
indicator
Alarm on indicator
You can set five independent Daily Alarms. When an
alarm is turned on, the alarm tone sounds when the alarm
time is reached. One of the alarms is a snooze alarm,
while the other four are one-time alarms.
You can turn on an Hourly Time Signal that causes the
watch to beep twice every hour on the hour.
• There are six screens in the Alarm Mode. Four are for
one-time alarms (indicated by numbers from
through ), one is for a snooze alarm (indicated by
), and one is for the Hourly Time Signal (indicated
by
).
• All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C.
1. In the Alarm Mode, use D to scroll through the alarm
screens until the one whose time you want to set is
displayed.
indicator).
setting screen
1. In the Alarm Mode, use D to select an alarm.
2. Press A to toggle it on (
(
displayed).
• Turning on a one-time alarm (
displays the alarm on indicator on its Alarm Mode
screen.
• Turning on the snooze alarm (
on indicator and snooze alarm indicator on the Alarm
Mode snooze alarm screen.
• In all modes, the alarm on indicator is shown for any
alarm that is currently turned on.
• The alarm on indicator flashes while the alarm is
sounding.
• The snooze alarm indicator flashes during the 5-minute
intervals between alarms.
displayed) and off
through )
) displays the alarm
To turn the Hourly Time Signal on and off
On/Off status
Hourly time signal
on indicator
1. In the Alarm Mode, use D to select the Hourly Time
Signal (
2. Press A to toggle it on (
• The Hourly Time Signal on indicator is shown on the
).
(
displayed).
display in all modes while the Hourly Time Signal is
turned on.
displayed) and off
Illumination
This watch has an EL (electro-luminescent) panel that
causes the entire display to glow for easy reading in the
dark.
Illumination Precautions
• The electro-luminescent panel that provides illumination
loses power after very long use.
• Illumination may be hard to see when viewed under
direct sunlight.
• The watch may emit an audible sound whenever the
display is illuminated. This is due to vibration of the EL
panel used for illumination, and does not indicate
malfunction.
• Illumination automatically turns off whenever an alarm
sounds.
• Frequent use of illumination runs down the battery.
To illuminate the display
In any mode (except when a setting screen is on the display), press B to turn on
illumination.
• You can use the procedure below 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 setting.
To specify the illumination duration
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. While the seconds are flashing, press B to toggle the
illumination duration between 1.5 seconds (
seconds (
3. Press A to exit the setting screen.
).
) and 3
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.
Button Operation Tone
• Since the C button is also the mode change button, holding it down to turn the
button operation tone on or off also causes the watch’s current mode to change.
indicator is displayed in all modes when the button operation tone is turned
• The
off.
Auto Return Features
• If you leave the watch in the Alarm Mode for two or three minutes without performing
any operation, it changes to the Timekeeping Mode automatically.
• If you leave a screen with flashing digits or a cursor on the display for two or three
minutes without performing any operation, the watch saves any settings you have
made up to that point and exits the setting screen automatically.
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 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.
World Time
• The seconds count of the World Time is synchronized with the seconds count of the
Timekeeping Mode.
• All World Time Mode times are calculated from the current Home City time in the
Timekeeping Mode using UTC time differential values.
• The UTC differential is a value that indicates the time difference between a
reference point in Greenwich, England and the time zone where a city is located.
• The 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.
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.
• Even if you turn off the button operation tone, the alarm,
Hourly Time Signal, and Countdown Timer Mode alarm
all operate normally.
To turn the button operation tone on and off
In any mode (except when a setting screen is on the
display), hold down C to toggle the button operation tone
on (
not displayed) and off ( displayed).
2
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