21
Introduction
We congratulate you on the acquisition of your Jaeger-leCoultre watch, and
thank you for your confidence.
We invite you to consult the operating instructions and hope your Jaeger-
leCoultre timepiece brings you great enjoyment.
accuracy
Manually wound or automatic mechanical watches
The precision of watch models with mechanical movements is determined by
the balance. The latter oscillates at a rate of 21,600 vibrations per hour. despite
all the care that the master watchmakers of the Jaeger-leCoultre Manufacture
have lavished on building and assembling your watch, its accuracy is subject 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 irr-
egularities. 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.
Water-resistance
Your Jaeger-leCoultre watch is water-resistant to 3 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 3 bar,
corresponding to an immersion pressure 30 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 Manu-
facture Jaeger-leCoultre 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,
- check when making the purchase that the strap or bracelet is suitable for the
English
