Quote History Originally Posted By Jack19:
What does "Secular" have to do with it? What is a secular watch?
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Just the term used in the industry for a perpetual calendar, typically adjustment free for 100 years, that is instead good for 400 years (or more). In this case, it will be good through 3999, because it has not been decided if the year 4000 will have a leap day or not yet.
Only 4 brands have created a secular perpetual calendar watch until now:
Patek Philippe Caliber 89 pocket watch
Svend Andersen Perpetual Secular Calendar
Franck Muller's Aeternitas Mega 4
Furlan Marri One Watch 2023