IWC Schaffhausen 3891 Instrucciones De Operación página 20

X Normal position (screwed in)
0 Winding position
1 Date and day setting
2 Time setting
This watch has a screw-in crown. Screwing the crown into its normal position (X) prevents the inad-
vertent adjustment of the time or date and also acts as a double 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 into position X and turning it to the right at
the same time, it is screwed down firmly again and secured.
— 2 0 —
FUNCTIONS OF THE CROWN
NORMAL POSITION
PILOT'S WATCH CHRONOGR APH
X 0 1 2