iwc Ingenieur Constant-Force Tourbillon Operating Instructions Manual page 11

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The moon phase display shows the moon in the northern hemisphere in the upper half
and the moon in the southern hemisphere in the lower half.
The arrows to the left and right of the moon phase display are used to indicate the
days remaining until the next full moon.
M O O N P H A S E D I S P L A Y
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C O U N T D O W N D I S P L A Y
I N G E N I E U R C O N S T A N T - F O R C E T O U R B I L L O N
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Full moon
Waning Moon
New moon
Waxing moon
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