Manual
Page 4
... displayed. WORLD TIME DISPLAY (only for models with the 24-hour hand) q The time of leap years up to February 28, 2100. English CAL. 4F56, 8F56 PERPETUAL CALENDAR q Once set, the calendar automatically adjusts for odd and even months including February of an area in a different time zone can be shown on the watch.
... displayed. WORLD TIME DISPLAY (only for models with the 24-hour hand) q The time of leap years up to February 28, 2100. English CAL. 4F56, 8F56 PERPETUAL CALENDAR q Once set, the calendar automatically adjusts for odd and even months including February of an area in a different time zone can be shown on the watch.