iwc Referenz 3878 Mode D'emploi page 27

Leather is a natural and permeable material. Make sure, therefore,
that the high-quality leather 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.
p l i o t ' S W a t C h C h r o n o g r a p h
e d i t i o n a n t o i n e d e S a i n t e x u p é r y
Although the parts in this watch are all manufactured from
top-quality materials, a number of components are subject to
natural wear and tear. It is particularly important to ensure that the
points at which wear occurs are always well lubricated and that
oil contaminated by metal abrasion is regularly removed. For this
reason, we recommend that you have your watch serviced ap-
proximately every five years. Please contact an authorized IWC
Official Agent or send your watch directly to the IWC Customer
Service Department in Schaffhausen.
Effective from November 2011.
Technical specifications subject to change.
e d i t i o n a n t o i n e d e S a i n t e x u p é r y
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p i l o t ' S W a t C h C h r o n o g r a p h