Patek Philippe E 15 Mode D'emploi page 10

MAINTENANCE
CERTIFICATE OF ORIGIN
Your watch is delivered with a certificate of origin
that indicates the movement and case numbers. The
certificate is valid only if it is dated, signed by an
Authorized Patek Philippe Retailer, and completed
with your name. It guarantees the authenticity of
your watch and validates your warranty privileges.
The unique movement and case numbers of each
watch are transcribed into the workshop journals.
With this information, you may have yourself
entered in the Patek Philippe Register of Owners
International Patek Philippe
and will obtain the
Magazine
free of charge.
QUALITY CONTROL
Patek Philippe's quartz movements and watches are
subject to several weeks of tests and inspections to
verify their rate accuracy, reliability, functional
integrity, and overall appearance. They do not leave
the workshops before they thoroughly fulfill all of
our quality requirements, agreed to be the most
stringent in the entire Swiss watchmaking industry.
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ACCURACY
Patek Philippe quartz movements leave our work-
shops with a rate deviation ranging from +127 to
-18 seconds per year. Fluctuations in position, tem-
perature, or air pressure, the presence of magnetic
fields (as produced by most electronic devices,
metal detectors, household appliances, etc.) as well
as vibrations and other factors may also affect their
accuracy. If you notice that your watch exhibits
such 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 and
a screw-down crown (Aquanaut models) to protect
the movement against the ingress of dust and mois-
ture 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.
It is advisable to have a water-resistance test car-
ried out every year on your watch. This is a simple
procedure that takes only a few minutes at a prop-
erly equipped point of sale.
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