Each year the Clifton Collection offers an exclusive timepiece. A watchmaking exercise done by Baume & Mercier. The new Clifton Perpetual Calendar—a collection already composed of remarkable watches like the flying tourbillon or the 5-minute repeater. Complex and fascinating, this latest complication perfectly expresses the brand’s traditional craftsmanship.

Nestled within a 18K red gold case, this subtle mechanism negotiates all the particularities of the Gregorian calendar with its 31, 30 or 28-day months and the periodic return of February 29th.

A truly mechanical challenge for watchmakers, the perpetual calendar is a symbol of human ingenuity for tracking the earth and its moon as they orbit within the solar system. By indicating the date, the day of the week, the month and the phases of the moon, and by automatically keeping track of the variable length of each month and the cycle of leap years, this Clifton Perpetual Calendar establishes itself within the lineage of the most complicated date-tracking watches, those which do not require any date correction before the 1st of March 2100, a non-leap year that appears three centuries out of four.