iwc PORTOFINO HANDAUFZUG Instrucciones De Manejo página 22

Water-resistance
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 authorised 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 unauthorised per-
sons, IWC will accept no warranty or liability claims.
Recommendation: Your authorised IWC Official Agent must carry out a
water-resistance test whenever your IWC watch is opened and serviced.