IWC Schaffhausen DA VINCI PERPETUAL Mode D'emploi page 31

– Now turn the hands forward to the current time. If you are
setting the watch in the afternoon, you must turn the hands
past 12 noon again. Now move the minute hand a few minute
strokes beyond the time to be set. Then position the minute
hand by moving it gently backwards until it is exactly above
the correct minute stroke. This ensures that the minute hand
begins to move immediately when you restart the movement.
– Push the crown back to position 0 to start the movement.
The entire calendar is now automatically set correctly. There is no
need for you to know the current phase of the moon or whether
you are in a leap year. You do not even need to set the day of the
week. This simplified setting is very convenient, particularly if you
have not worn your IWC watch for a few days.
D A V I N C I P E R P E T U A L C A L E N D A R C H R O N O G R A P H
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