Casio 5057 User manual

Module No. 5057

30
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to read this manual carefully.
•Be sure to keep all user documentation handy for future reference.
What to do if the center dial hand is stopped
The watch is shipped from the factory with the center dial
hand stopped in order to conserve battery power. Even
though the center dial hand is stopped, the watch
continues to maintain the current time internally. If the
center dial hand is stopped when you purchase the watch,
press any one of the watch’s buttons to start hand
movement.
E
Center dial hand

E-1
About This Manual
•Button operations are indicated using the letters shown
in the illustration.
•The upper right and center dials indicate various types
of data, depending on the currently selected mode.
•Each section of this manual provides you with the
information you need in order to perform operations in
each mode. Further details and technical information
can be found in the “Reference” section.
•
To ensure that this watch provides you with the years of
service for which it is designed, be sure to carefully read
and follow the instructions under “Operating Precautions”
and “User Maintenance”.
Note that CASIO COMPUTER CO., LTD. assumes no
responsibility for any damage or loss suffered by you or
any third party arising through the use of this product or
its malfunction.
30
Stopwatch second hand
24-hour
hand
Upper right
dial hand
Minute handHour hand
Day
Center dial hand

E-2
Contents
General Guide ......................................................................................................... E-4
Timekeeping ............................................................................................................ E-6
Stopwatch .............................................................................................................. E-11
Alarm ...................................................................................................................... E-22
Adjusting the Home Positions ............................................................................. E-24
Reference .............................................................................................................. E-27
Specifications ....................................................................................................... E-29
Operating Precautions ......................................................................................... E-30
User Maintenance ................................................................................................. E-38

E-3
Procedure Lookup
The following is a handy reference list of all the operational procedures contained in
this manual.
To set the time and date ......................................................................................... E-7
To start an elapsed time operation while in the Stopwatch Mode ................... E-12
To start an elapsed time operation while in the Timekeeping Mode ................ E-13
To measure lap times ........................................................................................... E-15
To specify a course or section distance ............................................................. E-20
To set an alarm time ............................................................................................. E-22
To toggle an alarm on and off .............................................................................. E-23
To adjust the home positions .............................................................................. E-24

E-4
General Guide
▲
Hold down Afor about
three seconds.
Press A.
30
Time/Date Adjustment
(page E-7)

E-5
30
30
Press C.
Timekeeping Mode
(page E-6)
▲
Stopwatch Mode (page E-11)
Press Bor D.
▲
Press D.
(When the stopwatch
is reset to all zeros.)
30
Alarm Mode
(page E-22)
▲
▲
▲

E-6
Timekeeping
Use the Timekeeping Mode to set and view the current
time and date.
•Pressing Ain the Timekeeping Mode will cause the
center dial hand to move to the current day of the week.
Press Ato return to normal timekeeping. The watch
also will return to normal timekeeping if you do not
perform any operation for about two seconds.
30
30
3
Day
Press A.
▲
▲
Hour hand Minute hand
24-hour
hand Center dial (second) hand
Day of week

E-7
To set the time and date
1. In the Timekeeping Mode, hold down Afor about three
seconds until the watch beeps.
•The stopwatch second hand and center dial hand will
move to 12 o’clock and stop there. This is the setting
mode.
2. Use D(+) and B(–) to change the time (hour and
minute) setting.
•As you set the time, take care to ensure that the
24-hour hand also is at the correct position.
3. After the time setting is the way you want, press C.
•This will cause the watch to beep and change to the
year setting mode.
30
Stopwatch second hand
Hour hand
Minute hand
Center dial hand

E-8
4. Use Dand Bto change the year setting.
•You can set the year within the range of 2000 to 2099.
•Use Bto move the stopwatch second hand
clockwise to the value of the tens digit that you want
to specify. To set 2012, for example, move the hand to
10.
•Use Dto move the center dial hand clockwise to the
value of the units digit that you want to specify. To set
2012, for example, move the hand to 2.
5. After the year setting is the way you want, press C.
•This will cause the watch to beep and change to the
month setting mode.
00 10
20
30
90
40
50
60
70
80
30
01
2
3
4
5
6
7
8
9
Stopwatch
second
hand
Center dial
hand
Setting the year (10s digit)
Setting the year (units digit)

E-9
6. Use Dto move the stopwatch second hand clockwise
to the month you want to specify. To set March, for
example, move the hand to 3 (Mar).
7. After the month setting is the way you want, press C.
•This will cause the watch to beep and change to the
day setting mode.
8. Use D(+) and B(–) to change the day setting.
•When setting the day, the watch automatically will skip
days (30 and 31) that are not included in the currently
selected month. If you can’t select 30 or 31 when you
want to, check to make sure that the proper month is
selected.
•You can return to the time setting mode (page E-7)
after configuring the day setting by pressing C.
Pressing Cwill cause the watch to beep twice.
30
Dec Jan
Feb
Mar
Sep
Oct
Nov
Apr
May
Jun
Jul
Aug
Setting the Month
30
30
Day
Stopwatch second hand
Month

E-10
9. After all of the settings are the way you want and the day display is no longer
changing, press A. This will cause the center dial hand to start moving again and
the other hands to start moving from their current positions.
•You can press Aat any time during the above procedure to return to the
Timekeeping Mode.
•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 date will change automatically when the current time reaches midnight. The
date change at the end of a month may take more time than normal.

E-11
Stopwatch
You can use the stopwatch to measure elapsed time,
cumulative elapsed time, and lap times. You also can input
the distance of the course or a particular segment of the
course of the race you are watching. That distance is used
along with the elapsed time, cumulative elapsed time, or
lap time measured by the watch to calculate and display
the average speed for the course or segment.
•See “Average Speed”(page E-16) for more information.
•Never operate the stopwatch while operating a
motor vehicle. Doing so is very dangerous and can
cause an accident.
•Entering the Stopwatch Mode causes the stopwatch
second hand, the upper right dial hand and center dial
hand to move to the 12 o’clock position.
•You can start elapsed time measurement with the
stopwatch while the watch is in the Stopwatch Mode or
the Timekeeping Mode.
30
Center dial (stopwatch
1/20 second) hand
* This hand rotates and
indicates the second count
during the first 60 seconds.
Upper right dial
(stopwatch minute) hand
Stopwatch second hand

E-12
•The display range of the stopwatch is 59 minutes, 59.95 seconds.
•The stopwatch continues to run, restarting from zero after it reaches its limit, until
you stop it.
•You can switch to another mode from the Stopwatch Mode only while the stopwatch
is stopped and reset to all zeros.
To start an elapsed time operation while in the Stopwatch Mode
1. In the Timekeeping Mode, press Dto enter the Stopwatch Mode.
2. In the Stopwatch Mode, press Bto start elapsed time measurement.
3. Press Bto stop elapsed time measurement.
•You can restart and stop elapsed time measurement as many times as you like by
pressing B.
•The center dial hand rotates during the first 60 seconds only, and then stops. When
elapsed time measurement is stopped (by pressing B), the center dial hand jumps
to the 1/20 second indication (which is kept internally).

E-13
•Stopping a timing operation will cause the stopwatch second hand to stop at the
elapsed time seconds position. It will remain there if there is no distance value input.
If a distance value is input, the stopwatch second hand will then move to average
speed indication after about two seconds. After that it will move back to the elapsed
time second position.
•After you are finished measuring elapsed time, press Dto reset the stopwatch to all
zeros.
•To return to the Timekeeping Mode, press Dwhile the stopwatch is reset to all
zeros.
To start an elapsed time operation while in the Timekeeping Mode
1. In the Timekeeping Mode, press Bto start elapsed time measurement.
•Elapsed time measurement will start internally when you press B, but timing will
not appear for about one second.
•The elapsed time measurement will not start if you press Bin the Timekeeping
Mode while either of the following conditions exists.
While an alarm is sounding
While the watch is changing from one date to the next (at midnight)

E-14
2. Press Bto stop elapsed time measurement.
•You can restart and stop elapsed time measurement as many times as you like by
pressing B.
•The center dial hand rotates during the first 60 seconds only, and then stops. When
elapsed time measurement is stopped (by pressing B), the center dial hand jumps
to the 1/20 second indication (which is kept internally).
•Stopping a timing operation will cause the stopwatch second hand to stop at the
elapsed time seconds position. It will remain there if there is no distance value input.
If a distance value is input, the stopwatch second hand will then move to average
speed indication after about two seconds. After that it will move back to the elapsed
time second position.
•After you are finished measuring elapsed time, press Dto reset the stopwatch to all
zeros.
•
To return to the Timekeeping Mode, press D while the stopwatch is reset to all zeros.

E-15
To measure lap times
1. In the Timekeeping Mode or the Stopwatch Mode,
press Bto start an elapsed time measurement
operation.
2. Press Dto display the current lap time.
•Each press of Ddisplays the current lap time up to
that point.
•The lap time will remain displayed for about two
seconds.
•Pressing Dto display the current lap time also will
start timing of the next lap. This means that the
stopwatch does not maintain the total elapsed time or
total cumulative time in this case.
•The stopwatch will continue to time the next lap
internally, even while the current lap time is displayed.
30
Center dial (stopwatch
1/20 second) hand
Upper right dial
(stopwatch minute) hand
Stopwatch second hand

E-16
•If a distance value is input, performing a lap time operation will cause the
stopwatch second hand to stop at the current lap time for about two seconds. The
stopwatch second hand will then move to the speed indication of the lap for about
two seconds. After that it will move to the ongoing elapsed time operation position.
3. Press Bto stop the stopwatch.
•This will cause the final lap time to appear on the display.
•Press Dto reset the stopwatch.
Average Speed
You also can input the distance of the course or a particular segment of the course of
the race you are watching.That distance is used along with the elapsed time,
cumulative elapsed time, or lap time measured by the watch to calculate and display
the average speed for the course or segment.
The average speed that appears for an elapsed time, cumulative elapsed time, or lap
time is calculated based on the times described below.
Elapsed time: Time from the point the stopwatch operation is started up until it was
stopped.

E-17
Cumulative elapsed time: Total time from the point the cumulative elapsed time
operation is started up until it was stopped. Does not include any time when the
stopwatch operation was paused.
Lap time: Time of each particular lap.
•Never operate the stopwatch while operating a motor vehicle. Doing so is very
dangerous and can cause an accident.
•The initial factory default setting for the distance value is 1.0.
•For information about inputting a distance, see “To specify a course or section
distance”on page E-20.

E-18
Average Speed Indication
The stopwatch second hand will indicate the average
speed value after you stop an elapsed time measurement
or display a lap time.The center dial hand points to
SPEED (SPD) while the average speed is being indicated.
Stopping an Elapsed Time or Cumulative Elapsed
Time Measurement
Two seconds after you stop an elapsed time
measurement operation by pressing B, the stopwatch
second hand will indicate the speed for two seconds. After
that, the stopwatch second hand will move back to the
elapsed time seconds position.
Lap Time Measurement
Two seconds after you stop a lap time measurement
operation by pressing D, the stopwatch second hand will
indicate the speed for two seconds. After that, the
stopwatch second hand will move to the ongoing elasped
time operation.
Average Speed
Indication
30
300 350250
200
150
0
50
100
Center dial hand
Speed value
Stopwatch
second hand