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Chronograph VD51B
Time and Date Setting
1. Before setting the time, make sure the chronograph second and minute hands are at the 12:00 position and the
chronograph is not running. See Chronograph Operation instructions below.
2. Pull crown out to position 2.
3. Rotate crown clockwise until the previous day’s date is displayed in date window.
4. Pull crown out to position 3 when the second hand is in the 12:00 position. Second hand will stop.
5. Rotate crown clockwise until the correct date is shown in the date window.
6. Continue to rotate crown to set correct am/pm time.
7. Return crown to position 1.
NOTE: When the crown in in position 2, do not press the pushers. Otherwise the chronograph hands will move.
NOTE: Do not set date between 9:00 PM and 1:00 AM to ensure accuracy.
Chronograph Operation
1. Press A to start/stop the chronograph.
2. Press B to reset.
Split Time
1. Press B while the chronograph is running.
2. Press B again to return to the chronograph.
3. Press A to finalize timing.
4. Press B to reset.
Chronograph Zero Reset
If for any reason the chronograph hands do not return exactly to the zero (12:00) position:
1. Pull crown out to position 3.
2. Press A to reset the chronograph second hand, or press B to reset the chronograph minute hand. Each press of
the pusher will advance the corresponding hand one mark. If either pusher is held down for over 2 seconds, the
corresponding hand will advance continuously.
NOTE: Chronograph minute hand moves simultaneously with chronograph second hand.
3. Return crown to position 1 when chronograph hands are reset to zero (12:00).
1 2 3
A
B
CHRONOGRAPH
SECOND HAND
CHRONOGRAPH
MINUTE HAND
DATE
Chronograph 6S20
Setting the Date
1. Pull crown out to position 2.
2. Turn crown clockwise to advance the date hand.
3. Push crown back to position 1.
NOTE: If the date is set between the hours of around 9:00 PM and 3:00 AM, the date may not change
on the following day.
Setting the Time
1. Pull crown out to position 3.
2. Turn the crown clockwise to advance hour and minute hands.
3. Push crown back to position 1.
Chronograph
1. Press A to start/stop the chronograph.
2. Press B to reset to zero.
Chronograph Reset
1. If either the of the chronograph hands is not at the zero (12:00) position pull crown out to position 3.
2. Press A once to set the chronograph second hand to the zero position.
3. Press B once to set the chronograph 1/20 second hand to the zero position.
NOTE: The chronograph hands can be advanced rapidly by continuously pressing A or B.
4. When both hands are in the zero position, reset time and return crown to position 1.
1 2 3
A
B
CHRONOGRAPH
SECOND HAND
CHRONOGRAPH 1/20
SECOND HAND
SECOND HAND
CHRONOGRAPH
MINUTE HAND
DATE
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