6 7
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
1. If either of the chronograph hands is not at the zero (12:00)
position, pull crown out to position 3.
2. Press A to move hands clockwise; press B to move hands
counter-clockwise.
3. Return crown to position 1.
TIME AND DATE SETTING
1. Pull crown out to position 2 and turn clockwise to set date to the
previous day.
2. Pull crown out to position 3 and turn clockwise until the correct date
is shown in the date window.
3. Continue turning crown to set correct a.m./p.m. time.
4. Return crown to position 1.
NOTE: To ensure accuracy, do not set the date between 9:00 p.m.
and 12:30 a.m.
CHRONOGRAPH OPERATION
1. Press A to start/stop the chronograph.
2. Press B to reset.
NOTE: After 2 hours of continuous running, the chronograph will
automatically stop and reset to save the battery.
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 one or more chronograph hands are not in their correct zero (12:00)
positions after pressing B (for example, following a battery change):
1. Pull crown out to position 2.
2. Press B to reset minute counter. Each press of B will advance the
chronograph minute hand by one increment or press and hold B for
fast advance.
3. Press A to reset 1/5 second counter. Each press of B will advance the
chronograph 1/5 second hand by one increment or press and hold B
for fast advance.
SECOND HAND
DATE
CHRONOGRAPH ISA 8171/201
CHRONOGRAPH 1/5
SECOND COUNTER
CHRONOGRAPH
MINUTE COUNTER
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