Patek Philippe 240 Mode D'emploi page 8

Caution:
8
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 the crown out in a humid environment or under-
water: the water resistance of your watch is assured only when
the crown is pushed home.
for watches without date display
Please set the time before you put the watch on.
1 2
Position 1:
Winding
Position 2:
Setting the time