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Calendar types in watches

(arslan.io)
179 points farslan | 1 comments | 29 Apr 24 17:43 UTC | HN request time: 0.29s | source
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jmyeet ◴[30 Apr 24 21:05 UTC] No.40216336[source]▶
Patek Phillippe has a complication not mentioned on this list that is one of the most complex complication ever built: the Calibre 89 [1] that can keep track of when Easter is (to a point).

Another contender is the Vacheron Constantin 57260 [2].

Here [3] is a good demonstration of how a perpetual calendar works.

[1]: https://hausmann-co.com/en/the-patek-philippe-calibre-89-the...

[2]: https://www.prestigetime.com/blog/worlds-most-complicated-wa...

[3]: https://www.youtube.com/watch?v=YERho3Q4Abo

replies(1): >>40218451 #
1. smitty1110 ◴[01 May 24 01:14 UTC] No.40218451[source]▶
Ah yes, the Hebrew calendar on the 57260 is sorta mind-bending to figure out. It's hard to imagine figuring that out by mere observation and tabulating records. Their more recent Berkley Grand Complication [1] took things a step further with a Chinese Perpetual Calendar, which is kinda hard to explain. The article linked does a better job than I would at walking through the system.

1: https://www.hodinkee.com/articles/introducing-vacheron-const...