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IWC Schaffhausen SPITFIRE MARK XVI Mode D'emploi page 21

Montre d'aviateur

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Winding position
18 | 19
In the winding position (position 0), you can also wind the
automatic movement by hand. The movement will start
after only a few revolutions of the crown. However, it is
better to wind the movement fully with about 30 revo-
lutions of the crown, as maximum accuracy and a power
reserve of about 42 hours will then be assured, even after
taking off the watch.
Setting the date
If a month has fewer than 31 days, you must set the date
by hand to the first day of the following month. Pull the
crown to position 1. You can now set the date by rotating
the crown to the left (quick setting). You should not per-
form quick setting in the period between 20.00 and 2.00,
since the date is moved forwards automatically by the
movement during this period and the change mechanism
could be damaged.

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