Citizen E610 Instruction Manual page 51

(2) Turn the crown to the right to align the second hand at the month and number
of years elapsed from the most recent leap year. The second hand cannot be
aligned by turning the crown to the left.
 Turn the crown to the right (by one click) to align the second hand at the
position corresponding to the month
and number of years elapsed from
the most recent leap year.
<Reading the Month and No. of
Elapsed Years>
[Reading the Month]
January zone: Between 1:00 and 2:00
February zone: Between 2:00 and 3:00
:
:
December zone: Between 12:00 and 1:00
Position of the second hand indicates
April of the second year after a leap year.
152
January zone
February
zone
April zone