Breitling AEROSPACE, User Manual

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1. GENERAL HANDLING PRINCIPLE
the different functions are selected by rotating the crown. the latter has
two axial positions: neutral (1) and pulled out (2).
in the neutral, fast rotation of the crown enables you to move from one
function to another. the crown may be turned forwards (clockwise) or
backwards (counter-clockwise).
Slow rotation of the crown lights up the two digital displays for around 6
seconds. the light goes out when the alarm, the timer or the minute
repeater strike.
N.B.
this type of lighting is nVg-compatible (i.e. with night vision
goggles).
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 wristwatch chronographs with quartz oscillators
consists in observing each movement for 11 days and 11 nights, in several
positions and at 3 different temperatures (8º c, 23º c, 38º c). to earn the
prestigious chronometer label, a movement’s performances must meet 7 very
strict criteria, including a daily variation in rate of within ±0.07 seconds,
corresponding to an annual precision of ±25 seconds. the variation in rate
of the S
uPer
Q
uartz
™ caliber fitted in your B
reitling
watch far and above
exceeds these demands, achieving a rate of ±15 seconds a year.
the term “chronometer” should not be confused with that of “chronograph”,
which is a complicated watch fitted with an additional mechanism enabling
the measurement of the duration of an event. a chronograph is not neces-
sarily chronometer-certified, but all B
reitling
chronographs carry the much-
coveted title of “chronometers”.
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