IWC Schaffhausen PORTOFINO AUTOMATIC DAY & NIGHT 37 Mode D'emploi page 29

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.
SERVICING YOUR PORTOFINO MIDSIZE AUTOMATIC
Although the parts in this watch are all manufactured from top-
quality materials, a number of components are subject to nat-
ural 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.
P O R T O F I N O M I D S I Z E A U T O M A T I C D A Y & N I G H T
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N O T E
D A Y & N I G H T