Portal:Anniversaries/January 23

1885 — Glashütte watch pioneer Moritz Großmann dies. He helped establish watchmaking in Saxony and founded the German Watchmaker School Glashütte.

1960 — The Bathyscaphe Trieste descends 10,916 meters to the bottom of the Challenger Deep with a specially-constructed Rolex Deep-Sea Special attached to the outside.