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Setting the Moon Age
The moon age can be corrected regardless of the position of the crown.
Press the moon age correction button to set the age of the moon.
• Look in a newspaper to find out the moon age for the day, and then set the moon mark
while referring to the moon age reference chart shown below.
Moon Age Reference
Chart
The indication of moon age
is shown to indicate the age
of the moon and not its
shape. It can be used as a
general indicator of moon
age.
New moon
Moon age: 0
(spring tide)
First quarter
Moon age:
approx. 7
(neap tide)
Full moon
Moon age:
approx. 15
(spring tide)
Last quarter
Moon age:
approx. 22
(neap tide)
<Accurate Setting of Moon Age>
Moon age can be set more accurately by setting the moon age either during a new moon
(when the moon mark is not visible; moon age: 0 weeks) or during a full moon (when the
moon mark is facing straight up (in the direction of 12:00); moon age: approx. 15 weeks).
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