Seiko 8F35 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, 2100.
It indicates the month, date and the number of years since the last leap year.
HIGH ACCURACY
Loss/gain : Annual rate of less than 20 seconds
200 METER WATER RESISTANCE
Suitable for scuba diving.
ROTATING BEZEL
Can measure elapsed time during diving (up to 60 minutes).
SCREW LOCK TYPE CROWN
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CAL. 8F35