Seiko 6A32 Instructions Manual page 4

PERPETUAL CALENDAR
Once set, the calendar automatically adjusts for odd and even months including
February of leap years up to February 28, 2031. After 2032, adjust the year manually
following the procedures in "HOW TO CHECK AND ADJUST THE CALENDAR."
It indicates the year, month, and date.
Before using the watch:
Because the calendar is preadjusted at the factory, you only need to set the
time and date, and the calendar will automatically update itself.
Before using the watch, set the time and date correctly following the procedures
in "TIME/DATE SETTING."
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CAL. 6A32