iwc INGENIEUR PERPETUAL CALENDAR DIGITAL DATE-MONTH Operating Instructions Manual page 14

dive depth because of the test procedures that are frequently
used. Water­resistance shown in metres provides no indica­
tion as to actual use of the watch in the presence of moisture
and wetness, and in or under water. Recommendations for
use in connection with the water­resistance of your watch can
be found on the Internet at www.iwc.com/water­resistance.
Your authorized IWC Official Agent will also be pleased to
provide you with information.
To ensure that your watch stays properly water­resistant, you
should have it checked by an IWC service centre at least once
a year. Your watch should also be tested after exposure to
unusually harsh conditions. If the tests are not carried out as
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stipulated, or if the watch is opened by unauthorized persons,
IWC will accept no warranty or liability claims.
Recommendation: Your authorized IWC Official Agent must
carry out a water­resistance test whenever your IWC watch
is opened and serviced.
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