by wasoxygen

Friendly reminder: if you own a Patek Philippe Caliber 89, don't forget to get the Easter program wheel swapped out before you miss next year's egg hunt. If not, you can grab one at the popular online auction site.

there is a gear in the astronomical train of the [Strasbourg Cathedral] clock that makes one rotation every 2,500 years, and that furthermore, the clock features a celestial globe that makes one rotation about an axis showing the precession of the Equinoxes only once every 25,000 years