IWC Schaffhausen 5029 Mode D'emploi page 23

With the crown in the winding position (0), you can also wind the automatic movement
by hand. A few revolutions of the crown are enough to start the movement. However, it
is better to wind the watch by turning the crown through approximately 20 revolutions
as this will ensure maximum accuracy. The crown must always be in position X when
you are wearing your watch.
If a month has fewer than 31 days, you will need to set the date manually to the first
day of the following month. Release the screw­in crown and pull it out to position 1.
You can now set the date by turning the crown to the left (direct advance). You should
not use the rapid­advance function between 8 p.m. and 2 a.m. because the move­
ment automatically advances the date during this period.
Please note:
– If the crown is turned too quickly, the display discs might not be positioned correct­
ly in the display window. Generally, such a default is automatically corrected by the
movement when the calendar advances within the following 24 hours. Should this
not be the case, the movement needs to be reset by an IWC watchmaker.
– You must not move the calendar beyond the correct date. The complicated
movement is mechanically programmed and cannot be moved back in time without
making a professional adjustment to the movement. However, if you do move the
date forwards beyond the correct date, you have two options: You can either pull
out the crown to position 2 to stop the movement until the calendar setting matches
B i G P i l o t ' s W a t C h P e r P e t u a l C a l e n d a r t o P G u n
— 2 3 —
W i n d i n G P o s i t i o n
s e t t i n G t h e C a l e n d a r