====== 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**. After the death of Charles Alfred in [[1875]], the company became known as **Hahn Frères et Cie**. They produced watches and watch movements as early as [[1883]] and won medals at [[Paris]] in [[1878]], [[La Chaux-de-Fonds]] in [[1881]], [[Geneva]] in [[1896]], and a gold medal in Paris in [[1900]] for their work.

Charles Hahn (son of the founder) had taken charge of the company by [[1898]], with it then known as **Charles Hahn & Cie**. The company was a maker of [[ebauche]]s and a finisher of movements and watches and could produce simple or [[complicated]] watches in Landeron. The company was producing [[chronograph]] movements by [[1923]] and acquired the patents of [[Breitling, Anatole|Anatole Breitling]] in [[1924]]. The company's growth lead many people to refer to it simply as **Landeron** by the 1910s.

In [[1925]], Landeron merged with [[FHF|Fabrique d'Horlogerie de Fontainemelon (FHF)]], being renamed **Fabrique d'Horlogerie de Fontainemelon, succursale du Landeron ci-devant Charles Hahn & Cie** ("Landeron branch under Charles Hahn"). FHF/Landeron became a founding member of [[Ebauches SA]] in [[1926]].

Landeron's [[column wheel]] [[chronograph]] movements were famous, and the company supplied these movements to many militaries. Examples include [[Landeron 11|Cal. 11 and 13]] and the state-of-the-art [[Landeron 39|Cal. 39]]. Because they held the [[Breitling]] patents, Landeron was the exclusive supplier of column wheel chronograph movements until their expiration in the 1930's.

Just before World War II, Landeron developed the first [[cam switching|cam actuated]] chronograph. Their [[Landeron 47|Cal. 47]] had three [[pusher]]s One to start, another to stop, and a third to reset the counter. They refined this movement to become the two-pusher [[Landeron 48|Cal. 48]]. This would become one of the most popular chronograph movements ever made, with more than 3.5 million examples produced between [[1937]] and [[1970]]. The lower price of production compared to a column wheel model meant an average person could afford a chronograph for the first time.

In the 1960's, Landeron produced the first Swiss electric movement, [[Landeron 4750|Cal. 4750]]. It featured a battery-powered balance wheel rather than a mainspring.

===== Movements =====
  *See also {{tagpage>Landeron_calibres|Landeron calibres}}

  * [[Landeron 19]] - 19 ligne [[pin set]]
  * [[Landeron 11|Landeron 11, 13]] - 13 ligne [[column wheel]] [[monopusher]] [[chronograph]]
  * [[Landeron 39]] - 14.5 ligne [[column wheel]] [[chronograph]]
  * [[Landeron 52]] - 14.5 ligne [[column wheel]] [[chronograph]]
  * [[Cam actuated]] three-pusher [[chronograph]] [[Landeron 47]] family
  * [[Cam actuated]] two-pusher [[chronograph]] [[Landeron 48]] family
    * Landeron 54, 56, 58
    * Landeron 51/151, 59/159, 80/180, 81/181, 55, 57
    * Landeron 148, 185, 186, 154
    * Landeron 149, 189, 349, 248, 187
    * Landeron 152/153, 352/353
  * [[Landeron 4750]] - Electro-mechanical balance wheel
    * Landeron 4750, 4751


{{tag>Movement_manufacturers_Switzerland Ebauches_SA}}