Citizen JY8037-50E - Month and Year Indications

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Month and year indications
The year and month are indicated by the chronograph second hand.
The position of the chronograph second hand
shows the month.
Each minute mark denotes the number of years
since a leap year.
Dec.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Leap year
1st year since leap year
2nd year since leap
year
3rd year since leap
year
e.g. When it is March in the leap year