17
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
t esting Institute), a neutral and independent body which individually tests
each movement according to the prescriptions in force.
t he 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 movement’s
performances must meet 7 very strict criteria, including a daily variation in
rate ranging between only –4/+6 seconds.
t he 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
r e It LIn g
chronographs carry the much-
coveted title of “chronometers”.
Содержание CHRONOMAT GMT
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Страница 85: ...82 BREITLING COSC ISO 3159 15 8 23 38 4 6 Br e It l In g...
Страница 86: ...83 Ho mE TImE 1 40 2 3 24 D D C E...
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Страница 89: ...86 I po c t o e me pe h e k o po t k o o o t pe k a b pe me h 1 3 2 1 2 1 4 c 3 3...
Страница 90: ...87 II me pe h e k o po t k o o o t pe k a b pe me h c o c t a h o b k o 1 3 2 3...
Страница 91: ...88 o o BAH T ET Ec Ko K 60 1 20 180 2 40 90 90...
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Страница 94: ...91 Br e It l In g 12 12 12 S N...
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Страница 96: ...93 Br e It l In g Br e It l In g P 3bars 30m 100FT 5bars 50m 165FT 10bars 100m 330FT 50bars 500m 1650FT...
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Страница 137: ...Printed in Switzerland B918 1103 3...