Accurist 6P20 Instructions Manual page 15

To read the moon age:
Note: The age of the moon is determined by the period between each new moon.
This period is approximately 29.5 days. The moon dial can be used as a guide to
moon phase and tides.
New Moon
Moon's age: 0
Spring tide
First quarter moon
Moon's age: 7
Neap tide
Full moon
Moons age: 15
Spring tide
Last quarter moon
Moon's age: 22
Neap tide
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