1. Nothing wrong with a cam switched Landeron, very common, but robust, easy to service and work just fine - you will never have a parts issue and they are the most economical 'proper' chronograph movement to buy as a collector. The earlier column wheel movements can be very nice indeed, but parts are an issue.

What is a Landeron movement?

The Landeron 48, the most commonly used movement in Chronographe Suisse watches. ... It was a hand-wound movement with 17 jewels, 18,000vph (2.5Hz) and a 42-hour power reserve. Landeron goes back to 1873, but it wasn't until 1924 that the company produced chronograph movements (and 1925 when it went by the name, Landeron).

What is Landeron?

Landeron was a Swiss watch movement maker in Le Landeron famous for chronograph movements. History. The company began in 1873, formed by Charles Alfred Hahn and his brother Aimé Auguste Hahn, and called Charles Hahn & Cie. They produced watches at first, but moved into watch movement production in the 1920's.