Care and Maintenance
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.
However, if your watch receives a blow to the
crown or the crystal, its water resistance may be
impaired.
SERVICE
We recommend that you have your watch ser-
viced every five years. The best way to do this is to
bring your watch to an Authorized Patek Philippe
Retailer who will be happy to forward it to our
workshops for you. You can then be assured that
your watch will be inspected and overhauled by
a qualified master watchmaker at Patek Philippe
headquarters in Geneva.
The watchmaker will completely disassemble the
movement and then inspect, clean, and lubri-
cate all the individual parts prior to reassembly.
All functions of the watch will also be tested in
detail and the escapement regulated if necessary.
Finally, its rate accuracy will be monitored and
precision-adjusted for a further period of two
weeks. The entire process may take several weeks
because each watch must undergo a complete
series of tests to fulfill the strict quality criteria
of Patek Philippe.
If you have any questions regarding the maintenance of
your watch, contact the Authorized Patek Philippe Retailer
nearest you or our International Customer Service depart-
ment in Geneva, or visit www.patek.com.
CHANGING THE CASE BACK
Your watch comes with a sapphire-crystal case
back as well as with an interchangeable solid-
metal back. Only our watchmakers at the Patek
Philippe workshops in Geneva are authorized to
replace this back.
PATEK PHILIPPE SEAL
The Patek Philippe Seal applies to the entire
watch, including the movement, case, dial, hands,
pushers, strap, and clasp as well as to all other
facets that contribute to the precision and aes-
thetic perfection of the timepiece. It covers the
technical, functional, and aesthetic factors, but
also rate accuracy, dependability, and customer
service quality. Additionally, it reflects the mak-
er's know-how and all other assets needed for the
development, production, and long-term main-
tenance of an extraordinary timekeeping instru-
ment.