Preparing The Watch For Use - Breitling Navitimer Serie Manual De Instrucciones

YOUR BREITLING CHRONOMETER
A chronometer is a high-precision instrument that has successfully passed
the entire battery of tests imposed by the COSC (Swiss Official Chronometer
Testing Institute), a neutral and independent body which individually tests
each movement according to the prescriptions in force.
The certification test for wristwatches with sprung balance oscillators,
according to the ISO 3159 norm, consists of observing each movement for
15 days and 15 nights, in 5 positions and at 3 different temperatures (8°,
23°C, 38°C). In order to earn the prestigious chronometer label, a move-
ment's performances must meet 7 very strict criteria, including a daily vari-
ation in rate ranging between only –4/+6 seconds.
The term "chronometer" should not be confused with that of "chrono-
graph", which is a complicated watch fitted with an additional mechanism
enabling the measurement of the duration of an event. A chronograph is
not necessarily chronometer-certified, but all Breitling chronographs carry
the much-coveted title of "chronometers".
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PREPARING THE WATCH FOR USE

WINDING – TIME-SETTING
1. Wind the watch by 40 clockwise turns of the crown.
2. Pull the crown out to position 2, turn it clockwise to
adjust the calendar to the day prior to the date when
it is set into operation.
3. Pull the crown out to position 3. Turn the hands so as
to make the calendar jump once when the hands pass
through midnight. Then adjust the hour and minute.
4. Push the crown back to position 1.
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