IWC Schaffhausen 3254 Instrucciones De Manejo página 17

Reading the time in the dark
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The dial as well as the hour and minute hands of your watch are provided
with luminous elements which permit the time to be read without problem,
even in total darkness.
Water-resistance
The water-resistance of IWC watches is stated in bar, and not in metres.
Metres, as often used elsewhere in the watch industry to indicate the water-
resistance, cannot be equated with the dive depth of a dive because of the
test procedures that are frequently used. Metres also do not permit any
conclusions to be drawn about the actual uses in the presence of moisture,
wetness and in or under the water. Recommended uses in conjunction
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.
In order to ensure its perfect function, your watch must be tested by an
IWC service point at least once a year. Testing must also be performed after
exposure to exceptional stresses. If these tests are not performed as
stipulated, or if the watch is opened by unauthorized persons, IWC will
decline any 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.