Patek Philippe 5536315 Mode D'emploi page 18

If you notice that your watch exhibits such
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irregularities, please do not hesitate to take it
to an Authorized Patek Philippe Retailer or an
Authorized Service Center where no effort will
be spared to assure that it is adjusted to meet your
expectations.
water resistance
Your watch is fitted with different types of seals
to protect the movement against the ingress of
dust and moisture and to prevent damage if it is
immersed in water. Nonetheless, we recommend
that you prevent direct contact with water if your
watch has a leather strap.
changing the caseback
If your watch was delivered with two interchangea-
ble case backs, please note that only an Authorized
Patek Philippe Retailer or an Authorized Service
Center is qualified to exchange the case backs.
service
We recommend that you have your watch ser-
viced every three to five years. For this purpose,
we suggest that you bring or send your watch
to an Authorized Patek Philippe Retailer or an
Authorized Service Center. This gives you the
assurance that your watch will be entrusted to
hands of a qualified Patek Philippe watchmaker in
Geneva or at an Authorized Service Center.