iwc IW372503 Instrucciones De Manejo página 21

Winding position
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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 revolutions of the crown, as maximum accuracy and
a power reserve of about 44 hours will then be as-
sured, even after taking off the watch.
Time setting
Pull the crown to position 1. This will stop the move-
ment. To ensure that the set time is accurate to the
second, it is best to stop the movement as the seconds
hand reaches 60. You can now position the minute hand
exactly on the minute line. To start the seconds hand,
push the crown back to position 0.
Important: Although the watch is water-resistant in posi-
tions 0, 1 and 2, the crown must nevertheless always be
screwed down again for normal use (position X).