Operation Manual

29
CHRONOGRAPH STOPWATCH OS20 / OS21
(1 crown / 2 pushers)
Time Setting
1. Pull crown out to position 3.
Chronograph second hand will return to “0.”
Do not return the crown to position 1 while the hands are returning to “0,” or else the
position the hands are at when this is done will be recognized as the new “0” position.
2. Turn crown to set the desired time.
3. Return the crown to position 1.
Date Setting
1. Pull crown out to position 2.
2. Turn crown counter-clockwise until the correct date is shown in the date window.
3. Return crown to position 1.
Chronograph Zero Reset
This procedure should be performed when the chronograph second hand does not
return to the “0” position after the chronograph has been reset.
1. Pull crown out to position 3.
2. Press
A to set the chronograph second hand to the “0” position.
NOTE: The hands move quickly if the pushers are kept pressed.
3. Once the hand has been zeroed, reset the time and return the crown to
position 1.
Do not return the crown to position 1 while the hands are returning to “0.”
Doing so will
cause the position of the hands to be recognized as the new “0” position.
Chronograph Operation
This chronograph is able to measure and display time in 1/1 second up to maximum
of 1 hour.
1. Press
A to start/stop the chronograph.
2. Press B to reset the chronograph.
CHRONOGRAPH
MINUTE HAND
CHRONOGRAPH
SECOND HAND
A
B
A
B
CHRONOGRAPH
SECOND HAND
CHRONOGRAPH
MINUTE HAND
24-HOUR HAND