* Turn the hands past the 12 o’clock marker to determine whether the watch is set for the AM
or PM period. If the calendar changes when the hour hand passes the 12 o’clock marker, the
time is set for AM. If the calendar does not change, the time is set for PM.
* Do not change the day or the date during 9:00 P.M. ~ 4:00 A.M.
* When setting the hands, first set them to a time a few minutes earlier than the correct time,
and then advance them to the exact time.
* It is necessary to adjust the date at the end of February and 30-day months.