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Operation Guide 5164 (EFX)

MA1002-EA

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.

 For a watch with an elapsed time bezel  

 

Rotate the elapsed time bezel to align the 

 mark with the 

minute hand. After a certain amount of time has 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.

About This Manual

 Button operations are indicated using the letters shown 

 

in the illustration.

General Guide

Crown Positions

First click (Setting day)

Second click (Setting time) 

Crown (Normal position)  

Timekeeping

Your watch lets you set two different times: one time with the hour and minute hands, 

and another time with the 12-hour and 24-hour hands.

<Time with the hour and 

minute hands (Dual Time)>

<Time with the 12-hour and 

24-hour hands (Basic Time)>

Hour hand 

Minute hand 

24-hour hand 

12-hour hand 

The time indicated by the hour hand and minute hand (Dual Time) can be set to the 

time you want without stopping watch operation.

You can set the 12-hour and 24-hour hands to your basic time (the current time in the 

time zone where you normally use the watch), and change the hour hand to any other 

time (Dual Time) you want (current time in a city you are visiting, etc.).

When setting the time, make sure that the date setting is correct. If it isn’t, correct the 

date setting.

To change the time setting

24-hour hand

Minute hand

Second click

Crown (Normal position)

12-hour hand

 As the second hand reaches the 12 o’clock position, pull the crown out to the 

1. 

second click. This will cause the second hand to stop.

 Rotate the crown to move the minute hand to adjust the 12-hour hand, 24-hour 

2. 

hand and minute hand. Though the minute, hour, 12-hour, and 24-hour hand 

movements are coordinated with each other, the hour hand can be moved 

independently to indicate a second time (Dual Time). For more information about 

setting the hour hand, see “To adjust the hour hand setting (Dual Time)”.

Carefully set the time, making sure to distinguish between AM and PM.

 

Push the crown back in to the normal position to resume timekeeping.

3. 

Elapsed time bezel

To adjust the hour hand setting (Dual Time)

Crown (Normal position)

First click

Hour hand

 Pull out the crown to the first click. Normal timekeeping will continue at this time.

1. 

 Rotate the crown towards you (in the direction of the arrow in the illustration) to 

2. 

adjust the hour hand setting.

 The position of the hour hand depends on the current minute.

 

 Carefully set the hour hand time, making sure to distinguish between AM and PM.

 

 Push the crown back in to the normal position.

3. 

To change the day setting

Crown (Normal position)

First click

Day

Pull the crown out to the first click.

1. 

 Set the day by rotating the crown away from you (in the direction of the arrow in 

2. 

the illustration).

 Avoid changing the day setting while the hour hand time is between 9:00 p.m. 

 

and 1:00 a.m.

Push the crown back in to the normal position.

3. 

Using the Stopwatch

The stopwatch lets you measure elapsed time up to 59 minutes, 59 seconds.

To measure elapsed time

Press 

1. 

A

 to start the stopwatch.

Press 

2. 

A

 to stop the stopwatch.

 You can resume the measurement operation by 

 

pressing 

A

 again.

Check the elapsed time.

3. 

Press 

 

B

 to reset the stopwatch.

Notes:

 Do not try to perform stopwatch operations while the crown is pulled out either to 

 

the first or second click.

 If the starting positions of the stopwatch minute hand and 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 second hand

 Press 

1. 

B

 to reset the stopwatch, and check the alignment of the stopwatch second 

hand.

Pull out the crown to the second click.

2. 

Press 

3. 

A

 to move the stopwatch second hand.

To return the minute hand to the 12 o’clock position, press 

4. 

B

.

 After making the adjustments you want, push the crown back in to its normal 

5. 

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.

Specifications

Accuracy at normal temperature:

 ± 20 seconds a month

Display:

  4 analog hands (timekeeping 12-hour, hour and minutes, stopwatch 

seconds), 3 dials (timekeeping 24-hour, seconds, stopwatch minutes), and 

day

Stopwatch function:

  Measuring capacity: 59’59”/Measuring unit: 1 second 

Measuring mode: Elapsed time

Battery:

 One silver oxide battery (Type: SR626SW)

  Approximately 2 years on type SR626SW (assuming one stopwatch operation  

60 min./day)

Stopwatch minute hand

Stopwatch second hand

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