iwc Portugieser grande Complication Mode D'emploi page 24

If it becomes necessary to reset the hands backwards (for example at the end
of daylight saving time, if the movement is running fast or when setting the
watch to the time of another time zone), you must first turn back the hands by
approximately 30 minutes more than required and then set them to the correct
time by turning them forwards. Please read also the section "Crossing time
zones and the Date Line with the Portuguese Grande Complication". If you fail
to do this, the repeating mechanism will need approximately 15 minutes
before it chimes in full synchronization with the movement. There will be no
defect as a result.
Setting your watch correctly
To set your watch correctly, proceed as follows:
• Wind the movement (approximately 20 revolutions of the crown).
• Pull out the crown to position 2 and turn the hands forwards to approxi-
mately 4.40 a.m. This ensures that the calendar mechanism is not in the
middle of the automatic switching phase and means you can see the
calendar displays easily.
• Push the crown to position 0 and pull it back to position 1.
• Slowly turn the crown to the right. The calendar now advances in steps.
Set the display to yesterday's date, keeping an eye on the month and the
year.
• Pull out the crown to position 2. This will stop the movement. To set the
time accurately to the second, it is best to stop the movement as the
seconds hand passes 60.
• Turn the hands forwards until the date display changes to today's date.
The hands will now be positioned between 12 midnight and 1 a.m.
• Now turn the hands forwards 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