IWC Schaffhausen PORTUGIESER PERPETUAL CALENDAR Instrucciones De Manejo página 22

The functions of the crown
Normal position
With the crown in the normal position (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 ac-
curacy. The crown must always be in position 0 when you are wearing your
watch.
Quick-setting the calendar
Pull out the crown to position 1. In this position, you can use the rapid-advance
function to move the calendar forwards one step at a time by turning the crown
slowly to the left. The calendar must not be adjusted between 8 pm and 2 am.
Please note:
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 the correct date once again. This makes sense if the
0 1 2
0 Normal position
1 Quick-setting the calendar
2 Time setting