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The perpetual calendar

wales Offline Smashie

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The perpetual calendar
on: January 12, 2023, 06:35:24 AM

Everyone on here who has a Casio knows that adjusts the calendar depending on if the month has 28,29,30 or 31 days.

However, to do this in a mechanical watch is quite a bit more complicated.

I found this video, which explains it as simply as can be done for such a complicated item.
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