Casio EF527D-1AV Operation Manual

Operation Guide 4369
1
MA0508-EA
To set the day
1. Pull the crown out to the first click.
2. Set the day by rotating the crown towards you.
3. Push the crown back in to the normal position.
• Avoid changing the date setting while the current time is between 9:00 p.m. and
1:00 a.m.
Using the Stopwatch
The stopwatch lets you measure elapsed time up to 11 hours, 59 minutes, 59.95
seconds.
To measure elapsed time
1. Press A to start the stopwatch.
2. Press A to stop the stopwatch.
• You can resume the measurement operation by pressing A again.
The stopwatch 1/20 second hand rotates and indicates the 1/20 second count
during the first 30 seconds.
3. Check the elapsed time.
• The example below shows an elapsed time of two minutes, 18.80 seconds.
• Press B to reset the stopwatch.
This will enter the Timekeeping Mode.
To return the function of the stopwatch 1/20 second hand to the timekeeping
seconds hand (indicating the current seconds count), press B again.
Notes:
• Do not try to perform stopwatch operations while the crown is pulled out either to
the first or second click. If you try to press a button, you might accidentally cause
the crown to rotate and change the current time or day setting.
• If the starting positions of the stopwatch second hand and 1/20 second hand
become misaligned, use the following procedures to adjust the positions of the
hands so they point to 12 o’clock when the stopwatch is reset.
To adjust the positions of the stopwatch hands
1. Press B to reset the stopwatch, and check the alignment of the stopwatch
second hand and 1/20 second hand.
2. Pull out the crown to the second click.
3. Press A to move the stopwatch second hand.
4. Press B.
5. If the stopwatch 1/20 second hand is aligned correctly, proceed to step 6. If the
stopwatch 1/20 second hand is also misaligned, press B to move the stopwatch
1/20 second hand.
6. After making the adjustments you want, push the crown back in to its normal position.
• Note that pulling the crown out also stops the timekeeping second hand. After
performing the above procedure, you should also adjust the timekeeping setting.
To set the time
1. Pull the crown out to the second
click.
• At this time, the second hand will
move to the 12 o’clock position and
stop there.
2. Set the hands by rotating the crown.
Rotate the crown to move the hands
clockwise. Move the minute hand
four or five minutes past the time you
want to set, and then back it up to
the proper setting.
• Carefully set the time, making sure
to distinguish between AM and PM.
3. Push the crown back in to the normal
position to restart timekeeping.
■ For a watch with an elapsed time bezel
Rotate the elapsed time bezel to align the 
 mark with the
minute hand.
After certain amount of time elapsed, read the graduation on
the elapsed time bezel which the minute hand points to.
The elapsed time is indicated.
• Some water resistant models are equipped with a screw lock
crown.
• With such models, you must unscrew the crown in the
direction noted in the illustration to loosen it before you can
pull it out. Do not pull too forcibly on such crowns.
• Also note that such watches are not water resistant while
their crowns are  loosened. Be sure to screw the crowns
back in as far as they will go after making any setting.
5
0
40
30
20
10
Elapsed time bezel
Minute hand 
Hour hand 
First click
(Setting day) 
Second click
(Setting time) 
Crown
(Normal position) 
Day 
Second hand 
Stopwatch minute hand
[2 minutes]
Stopwatch 1/20 second hand
[80]
Stopwatch second hand
[18 seconds]
Stopwatch minute hand
Stopwatch second hand
Stopwatch 1/20 second hand
*
This hand rotates and
indicates the 1/20 second
count during the first 30
seconds.
Stopwatch hour hand

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