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WATCHES WITH CHRONOGRAPH FUNCTION
Minute hands of
the chronograph
Direct-drive seconds
OVERVIEW
This precision quartz-movement chronograph has a
minute counter (up to 30"), a counter of tenths of
seconds (after 30 minutes it counts the hours),
a small subdial for seconds, a central seconds hand,
an advanced calendar function with display apertures
for the day and month, and a central hand indicating the
date. It can be used to measure an event lasting up to
30 minutes to the tenth of a second, or events lasting
up to 10 hours to the nearest second.
SETTING THE TIME
Setting the time:
1. Pull the crown to position 3 as soon as the small
seconds hand reaches the 60 seconds position.
The watch stops.
2. Rotate the crown in either direction to move the
hands and set the time, making sure that the date
changes at midnight and not at noon.
3. Place the hands slightly ahead of the exact time,
then rotate the crown slowly counterclockwise
to align the minute hand with the correct
minute marker.
4. Use an accurate and reliable time signal (from a radio
station for example). When the exact time is given,
push the crown back to position 1, against the case.
The watch restarts at the exact time.
1/10 seconds Aviator Chronograph
Setting the date:
1. Pull the crown to position 2.
2. Rotate the crown in either direction to move the
hands and set the time making sure that the date
changes at midnight and not at noon. (To set the
time to the precise second, see "Setting the time").
10
A: Start/Stop
1/10th of seconds hands
B: Intermediate time /
Reset to zero
Chronograph seconds hands
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