Operation Guide 5406
E-9
Dual Time Mode Stopwatch Mode
Alarm Mode Countdown Timer Mode
Indicates the day of the 
week (S/M/T/W/T/F/S).
Indicates ST.
Indicates ON or OFF. Indicates TR.
B
B*
1
B
B*
2
E-8
 Mode Reference Guide
Your watch has four “modes”. The mode you should select depends on what you 
want to do.
Use B to cycle between modes.
To do this: Enter this mode: See:
 x  View the current time and date in your Home City
 x Manually adjust the time or date setting
Any Mode E-11
View the current time in one of 29 other cities around 
the globe
Dual Time Mode E-11
Use the stopwatch to measure elapsed time Stopwatch Mode E-21
Use the countdown timer Countdown Timer Mode E-24
Set an alarm time Alarm Mode E-27
E-7
Some water-resistant models (100meters, 200meters) 
have a screw-in crown. When you need to perform a crown 
operation, rotate it towards you to unscrew it. Then pull 
the crown out. Avoid applying undue force when pulling. 
The watch loses its water resistance while the crown is 
unscrewed. After performing a crown operation, fully screw 
the crown back in.
Crown
Loosen
E-6
Indicators and Crown Operation
Hand Functions
1  Hour Hand
2  Minute Hand
3  Second Hand
4  Small Hour Hand
5  Small Minute Hand
6  Lower Dial Hand
7  Day Indicator
This User’s Guide uses numbers shown 
above to identify watch hands and 
indicators.
30
4
5 2
Second click
First click
Crown
E-5
Correcting Abnormal Hand Movement (General Reset) . . . . . . . . . . . . . . . . . E-34
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-35
Specifi cations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-37
Operating Precautions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-38
User Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-48
E-4
Using the Countdown Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-24
To enter the Countdown Timer Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-25
To specify the countdown start time  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-25
To perform a countdown timer operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-26
To stop the alarm  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-26
Using the Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-27
To enter the Alarm Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-28
To change the alarm time setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-29
To turn the alarm on or off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-30
To stop the alarm  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-30
Adjusting Hand Home Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-31
To adjust home positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-32
E-3
Contents
Before Using the Watch for the First Time  . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2
Indicators and Crown Operation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-6
Mode Reference Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-8
Timekeeping (Dual Time Mode)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-11
To adjust the time, day, and day of the week setting  . . . . . . . . . . . . . . . . . . . E-12
Using the Stopwatch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-21
To enter the Stopwatch Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-22
To measure elapsed time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-22
To pause at a split time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-22
To measure two fi nishes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-23
E-2
Before Using the Watch for the First Time
If your watch has a rotary bezel...
You can rotate the bezel to align its 
▼
 mark with 
the minute hand. Then you will be able to tell how 
much time has elapsed since aligning the 
▼
 mark.
Start
Elapsed time
Current
E-1
ENGLISH
 
 x  Your watch may differ somewhat from the one shown in the illustration.
MA1504-EA
© 2015 CASIO COMPUTER CO., LTD.