iwc fliegeruhr doppelchronograph Mode D'emploi page 20

This watch has a screw­in crown. Screwing the crown in to its normal position (X) pre­
vents the inadvertent adjustment of the time or date and also acts as a seal to prevent
water from seeping into the case. To release the crown, unscrew it by turning it to the
left, where it automatically assumes position 0, the winding position. By depressing
the crown in position X and turning it to the right at the same time, it is screwed down
firmly again and secured.
With the crown in the winding position (0), you can also wind the automatic movement
by hand. A few revolutions of the crown are enough to start the movement. However, it
is better to wind the watch by turning the crown through approximately 20 revolutions
as this will ensure maximum accuracy.
F u N C t i O N s O F t h e C r O W N
Normal position (screwed in)
X —
Winding position
0 —
Date and day setting
1 —
2 —
N O r M A l P O s i t i O N
W i N D i N g P O s i t i O N
P i l O t ' s W A t C h D O u B l e C h r O N O g r A P h
— 2 0 —
X
Time setting
0 1 2