Patek Philippe CALIBER CH 28-520 QA 24H, Manual

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INSTRUCTIONS
winding crown
The winding crown is used to wind the watch
(position 1) and to set the time (position 2).
winding
Your watch incorporates a self-winding movement.
The movements of your wrist set a centrifugal mass
in motion; this tensions the mainspring which
stores the energy. When you take off your fully
wound watch, it will continue to run for at least
45 hours. When it has stopped after depleting the
power reserve, it can be rewound by hand (about
10 clockwise turns of the crown). Please 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.
setting the time
To set the time, pull the crown out to position 2,
and turn it in either direction. When you turn the
hands clockwise beyond midnight, the calendar
displays will advance as well. We advise against
turning the hands counterclockwise across mid-
night because this would desynchronize the cal-
endar displays; however, it would not damage the
calendar mechanism. When the correct time is set,
push the crown home again.