Exercise Time Indicator 
Each of the six exercise time indicators represents
10 minutes of exercising. When you start the exercise, minutes and seconds are displayed, and the first exercise time indicator starts to flash. You can see exercise duration graphically all the time, in every exercise mode.
Switching Target Heart Rate Zone Alarm ON or OFF
In the Exercise mode you can turn the audible target heart rate zone alarm ON or OFF by pressing and holding the front button. The target heart rate zone alarm symbol 
beside the heart symbol will appear/disappear.
Note: It is recommended to switch the target heart rate zone alarm ON or OFF before you start exercising in order to avoid accidental ending of the exercise.
2.3 STOPPING THE EXERCISE
After 10 minutes of exercising the second indicator starts to flash.
After one hour of exercising, the indicators start to fill in again.
Press the front button to stop the exercise recording. STOP is displayed and the wrist unit returns to the Time of Day display.
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