Perpetual Calendar Watch. If it features the latter, it’s a moon. A perpetual calendar watch tracks seconds, minutes, hours, lunar phases, days, months, and even in some cases leap years.


Perpetual Calendar Watch

A perpetual calendar watch tracks seconds, minutes, hours, lunar phases, days, months, and even in some cases leap years. Celebrated names in haute horology continue to perfect the technology and produce some incredible pieces of overwhelming complexity.

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