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iwc 5004 Mode D'emploi page 17

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Winding position
14 | 15
In the winding position (0), you can also wind the automatic movement
by hand. A few rotations of the crown are sufficient to start the movement.
It is preferable, however, to fully wind the movement with ca. 30 rotations
of the crown to ensure maximum accuracy and a power reserve of seven
days (168 hours), even if the watch is taken off.
Power reserve display
The power reserve indicator is divided into seven days and provides a con-
tinuous indication. When it is being worn, however, the watch is also wound
constantly by the winding mechanism, which you can follow on the power
reserve indicator. The marking in the area of the last day draws your attention
to the fact that the power reserve is about to run down. You should now
wind the watch by hand as appropriate, because accuracy can decrease
within this phase.
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. Release the screw-in crown, and pull it out
to position 1. You can now set the date by rotating it to the left (quick setting).
You should not perform quick setting between 20.00 and 2.00, since the date
is changed automatically by the movement during this time period and the
mechanism can be damaged.

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