Jaeger-leCoultre MASTER CONTROL CHRONOGRAPH CALENDAR Manual page 5

- have the watch's water resistance checked
by an authorised Jaeger-LeCoultre retailer
at least once every two years. It is essential
to have such a check carried out each time
your watch is opened, and before any period
in which it is liable to undergo prolonged and/
or regular immersions.
- check when making the purchase that the
bracelet is suitable for the intended use.
- avoid subjecting the watch to excessively
abrupt temperature changes.
- protect the watch from being dropped or suf-
fering other accidental impacts, and have the
water resistance checked after any severe im-
pact.
- avoid using the controls, push-piece, or
time-setting crown while under water, or out-
side the water, if the watch is not yet dry after
immersion.
- restore the time-setting crown and the
push-pieces to their normal positions, or
where applicable, close the compression keys,
after every manipulation.
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