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Introduction
We would like to thank you for the confidence
you have placed in Jaeger-LeCoultre. Our Mai-
son has applied all its expertise and exacting
standards to the creation of this model.
We invite you to consult the operating instruc-
tions and hope your Jaeger-LeCoultre time-
piece brings you great joy.
Accuracy and precautions for use
MANUALLY-WOUND OR AUTOMATIC
MECHANICAL WATCHES
The accuracy of watch models with mechan-
ical movements is determined by the balance
wheel. This oscillates at a rate of 28,800 vi-
brations per hour. Despite all the care that the
master watchmakers of the Jaeger-LeCoultre
Manufacture have lavished on building and as-
sembling your watch, its accuracy is subject to
the influence of gravity, magnetic fields, acci-
dental impacts, and the ageing of the oils. The
accuracy of a watch is measured by its regular-
ity of rate in various positions.
ENGLISH
