Annual Calendar

An annual calendarAnnual Calendar An annual calendar is a complication in a mechanical watch that automatically adjusts for the different lengths of the months, except February, and only requires one manual adjustment per year at the end of February. It has a mechanism that takes into account the different number of days in each month and automatically adjusts the date accordingly. The annual calendar is a more complex version of the standard date display that requires manual adjustments every day or every month. [Learn More] is a complication in a mechanical watch that automatically adjusts for the different lengths of the months, except February, and only requires one manual adjustment per year at the end of February. It has a mechanism that takes into account the different number of days in each month and automatically adjusts the date accordingly. The annual calendar is a more complex version of the standard date display that requires manual adjustments every day or every month.

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