Breitling MONTBRILLANT 01 LIMITED Manual Del Usuario página 9

À ÉVITER
Comme tout objet de valeur, les chronomètres B
particulier. Ainsi, il convient de les protéger des chocs et coups à des objets
durs, de ne pas les exposer à des produits chimiques, solvants ou gaz dange-
reux ni aux champs magnétiques. en outre, votre chronomètre B
conçu pour fonctionner idéalement dans une plage de température comprise
entre 0°C et 50°C.
méritent un soin
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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
est
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 movement's
performances must meet 7 very strict criteria, including a daily variation in
rate ranging between only –4/+6 seconds.
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
coveted title of "chronometers".
chronographs carry the much-
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