Patek Philippe CH 28-520 C FUS, Manual, Page: 14 / 116

14 Caution: Please set the time before you put the watch on.
This prevents lateral pressure on the winding stem. Please
use your fingernails to pull the crown out and turn it gently
between two fingertips.
Never pull out the crown in a humid environment or under-
water: the water resistance of your watch is assured only
when the crown is pushed home and screwed down.
date correction
The date indicated by your Nautilus Travel Time
Chronograph refers to the local time zone. To cor-
rect the date display, actuate the correction push
piece between 12 and 1 o’clock as many times as
needed to indicate the correct date.
Caution: The date correction system is disabled between
10 p.m. and 2 a.m. to avoid damage to the mechanism which
is active during this time. If a date correction is necessary,
please perform it between 2 a.m. and 10 p.m.
display of a second time zone
Your watch has two center hour hands that move
synchronously and can be superposed. When the
two hands are not superposed, the solid luminous
hand indicates local time (in the time zone in
which you are currently located) while the skele-
tonized hand indicates home time (at your normal
place of residence or work). With the pushers in
the case flank at 8 and 10 o’clock, you can move
the solid local time hand clockwise or counter-
clockwise in one-hour steps.
Caution: Before you set a second time zone (local time),
check the day/night indicator at 3 o’clock (HOME) to make
sure that the two superposed hour hands indicate the correct
time at home and that the day/night indicator correctly
displays daytime or nighttime hours, for instance 6 a.m.
or 6 p.m.