iwc DA VINCI AUTOMATIC Operating Instructions Manual page 11

Water-resistance 8 | 9
The water-resistance of IWC watches is stated in bar and
not in metres. Metres, which are often used elsewhere in
the watch industry to indicate water-resistance, cannot
be equated with dive depth because of the test procedures
that are frequently used. Water-resistance shown in
metres provides no indication 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 water-resistance of your watch can be found on
the Internet at www.iwc.com/water-resistance. Your
authorized IWC Official Agent will also be pleased to
provide you with information.
To ensure that your watch continues to function perfectly,
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 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 water-resistance test whenever your
IWC watch is opened and serviced.