I dont usually pay much attention to Hodinkee, but this is a great piece of journalism imo.

Calling all engineer (or ex engineer) nerds

https://www.hodinkee.com/articles/patek-philippe-caliber-89-easter-problem

(warning: contains Gauss)

 

Cool article, thanks!

 

I missed this one prior to you sending the link over. Thanks for sharing! Great article

 

It's really an amazing pice. I saw the prototype when I visited the PP Museum, and The Graves. I know that the new VC had many more complications but think if The Graves, all manual calls! Unreal.