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Patek Philippe

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ANNUAL CALENDAR
The Annual Calendar indicates the day of the week,
the month, and the date, automatically taking into
account months with 30 and 31 days. If the watch
is worn daily, the date only needs to be corrected
on March 1 (forward by 3 days in non-leap years,
and by 2 days in leap years). A calendar correction
may also be necessary if the watch was set aside for
a longer period of time and stopped running. If the
hands are moved clockwise beyond midnight, the
calendar displays will advance by one da

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