iwc 5036 Mode D'emploi page 19

If your watch has a strap made of leather, textile or rubber with a leather or textile inlay, make sure that
the high-quality strap does not come into contact with water, oily substances, solvents, cleaning agents
or cosmetic products. This way you can prevent discoloration and premature ageing of the material.
The patina which develops over time protects the metal. It is caused by oxidation, and is similar to the
tarnish which can be seen on items made of silver. The environment to which the metal is exposed
and how often it is used affects how quickly the metal darkens. This is a natural process influenced
by skin contact, humidity, exposure to the elements, etc.
– The surface will not darken uniformly; darker areas and blemishes may develop.
– Bronze is a traditional material which is not as resistant to corrosion as those often used in the
watchmaking industry such as stainless steel, titanium, gold and platinum.
– Skin contact will cause bronze to develop a typical metallic odour when worn (similar to that of
coins).
BIG PILOT'S WATCH PERPETUAL CALENDAR
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NOTE HOW OFTEN SHOULD MY WATCH BE SERVICED?
The optimal service cycle for your IWC timepiece is exclusive to your watch and unique lifestyle. The
necessary interval between services will be determined by your individual wearing habits; frequency of
wear, your environment/s, and the intensity of physical activity you engage in. Your fine mechanical
timepiece is an extension of yourself and will run well for as long and smoothly as it is treated.
Therefore, we simply recommend you to continue wearing your watch for as long as pleases you and
to only entrust it for a service if you notice a deviation from the regular performance, function or
timekeeping. It will then be our pleasure to reinstate the premium performance with the
suitable service.
BIG PILOT'S WATCH PERPETUAL CALENDAR
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