iwc PORTUGIESER CONSTANT-FORCE TOURBILLON Operating Instructions Manual page 20

— 2 0 —
F U N C T I O N S O F T H E C R O W N
0 1 2
Normal position, winding position
0 —
Moon phase setting
1 —
Time setting
2 —
N O R M A L P O S I T I O N
With the crown in the normal position (0), you can wind the move­
ment by turning the crown clockwise. Your watch has a power
reserve of approximately 96 hours. To ensure maximum accuracy,
you should wind your watch fully every day to the maximum power
reserve limit. The crown must always be in position 0 when you
are wearing your watch.
P O R T U G I E S E R C O N S T A N T - F O R C E T O U R B I L L O N