If you have any questions regarding the main-
tenance of your watch, contact the Authorized
Patek Philippe Retailer nearest you or our Inter-
national Customer Service department in Geneva,
or visit www.patek.com.
wINDING
When fully wound, your wristwatch has a power
reserve of at least 38 hours. We recommend that
you wind your watch at about the same time every
day. We advise you to wind the watch before you
put it on. This way, you can avoid lateral pressure
on the winding stem which, in the course of the
years, could damage the stem tube.
The same applies to handsetting. Please use your
fingernails to pull the crown out and turn it gently
between two fingertips.
DYNAMOMETRIC wINDING CROwN
Make sure you wind the watch gently and uni-
formly. If you proceed too vigorously, you could
damage the movement and break parts, especially
toward the end of the winding process. To reduce
this risk, Patek Philippe has equipped some of its
manually wound watches, including the reference
5207/700, with a dynamometric crown. This pat-
ented Patek Philippe innovation prevents damage
to the winding mechanism when the mainspring
is fully tensioned. When you hear a succession
of soft clicks, this indicates that the watch is now
wound. This clicking sound is absolutely normal
and indicates when you can stop winding the
watch.
CHANGING THE CASE BACK
Your watch comes with a sapphire-crystal case
back and a interchangeable solid metal back. Only
qualified master watchmakers at the Patek Philippe
workshops in Geneva are authorized to exchange
the backs.
PATEK PHILIPPE SEAL
The Patek Philippe Seal is a global emblem of qual-
ity that applies to the completed and fully cased
watch. It covers the movement, the case, the dial,
the hands, the pushers, the straps and bracelets,
the clasps, as well as all other components that
contribute to the accuracy and aesthetic appeal
of a watch. It takes technical, functional, and de-
sign-related aspects into account and also covers
the visual appearance of the watch, its rate accu-
racy and dependability, as well as the quality of the
customer service to which its owner is entitled. It
encompasses the entire know-how and the unique
facets that govern the development, production,
and long-term maintenance of an exceptional
timepiece.