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Introduction
We congratulate you on the acquisition of your Jaeger-LeCoultre watch, and
thank you for your confidence in us.
We invite you to consult the operating instructions and hope your Jaeger-
LeCoultre timepiece brings you great enjoyment.
Accuracy and precautions for use
Manually-wound or automatic mechanical watches
The precision of mechanical watches is determined by the balance. This oscillates
at a rate of 28,800 vibrations per hour.
Despite all the care that the master watchmakers of the Jaeger-LeCoultre Manu-
facture have lavished on building and assembling your watch, its accuracy is sub-
ject to the influence of gravity, magnetic fields, impacts and ageing of the oils. The
precision of a watch is measured by its regularity of rate in various positions.
Your individual temperament and your activities could be the cause of slight ir-
regularities. If you observe a discrepancy in the running of your watch, we advise
you to entrust it to an authorised Jaeger-LeCoultre retailer who will make the
necessary adjustments. Watches with mechanical movements must not be used
for sports involving significant risk of impact or abrupt actions, such as golf or
tennis for example.
Water resistance
Your Jaeger-LeCoultre watch is water-resistant to 5 bar/atm. The water resistance
of your watch is identifiable by the symbol engraved on the back. This means that
your timepiece has been tested at an overpressure of 5 bar, corresponding to an
immersion pressure of 50 metres (1 bar/atm = approx. 10 metres).
In accordance with the ISO 22810/NIHS 92-20 standard, in order to guarantee
the durability of the watch's characteristics over time and as the water resistance
may be affected by certain activities, it is recommended that the user:
- have the water resistance of the watch checked by an authorised Jaeger-
LeCoultre dealer, in accordance with the recommendations of the Jaeger-
LeCoultre Manufacture and at any event after each opening of the case, in
which case it is recommended that the test be carried out with increased
air pressure
