iwc IW3921 Operating Instructions Manual page 17

wards until it is exactly above the cor­
rect minute stroke. This ensures that
the minute hand begins to move imme­
diately when you restart the move­
ment. To start the seconds hand, push
in the crown to position 0. Moving the
hands forward past midnight causes
the calendar to switch to the follow­
ing day. When advancing the calendar,
you can follow and observe the auto­
matic switching sequence.
Important:
– Under no circumstances must the
hands be turned back between 8
p.m. and 2 a.m. as this will result in
maladjustment of the calendar.
– The hands must never be turned
anticlockwise beyond 2 a.m.
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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