====== Dubois Dépraz ======
**Dubois Dépraz** is a Swiss [[ebauche movement]] and [[complication]] manufacturer. The company was founded in [[1901]] and remains a primary maker of complications and movements.

===== History =====
Marcel Dépraz began producing watch movements in [[Le Lieu]] in the [[Vallée de Joux]] in [[1901]]. He managed the company under his own name, and also began a joint company with Marius Guignard in [[1910]] known as **Dépraz & Guignard**.

In [[1947]], the company was reorganized as **Dépraz & Cie** by Roger Dépraz and Reynold Dubois. This incarnation of the company lasted until [[1968]].

**Dubois Dépraz SA** was established in [[1968]] by Gérald Dubois and Eric Dépraz. At that time, the company was already hard at work on the [[Chronomatic]], one of the first [[automatic chronograph]] watches, along with [[Breitling]], [[Hamilton]], [[Heuer]], and [[Büren]]. This combined a [[chronograph]] module developed by Gérald Dubois with an automatic movement supplied by Hans Kocher of Büren. The watch appeared on the market in [[1969]].

In [[1972]], [[ETA]] debuted the "[[Mosaba]] [[Swissonic|Swissonic 100]]" [[ETA 9210|Cal. 9210]], the first and only [[tuning fork]] [[chronograph]] movement. This complication was developed by Dubois Dépraz and also included a calendar complication with day and date.

From [[1979]], Dubois Dépraz was managed by Dubois solely, until Jean-Philippe Dubois joined as general manager in [[1989]]. A Dubois Dépraz module was used in [[1983]] by [[Heuer]] in the world's first [[quartz]] chronograph movement. Developed with [[Nouvelle Lémania]], it used a similar layout to the Swissonic 100 but without the day indication.

In [[1970]], Dubois Dépraz began a long relationship with [[Kelek]], which would result in over 30 different movements created. In [[1992]], the company developed an extremely complex movement for [[Kelek]] Cal. 5100 was a 13-handed [[perpetual calendar]] [[chronograph]] with [[moon phase]] and [[week number]]. Another chronograph movement developed for Kelek in 1992 was a small automatic measuring just 26.2 mm diameter and 6.55 mm thick known as Cal. 10701 or 10310. Cal. 5100 and 10000 would later be made available to other manufacturers, as would Cal. 20, a [[grande complication]] pocket watch movement with [[repetition]], [[chronograph]], and perpetual calendar.

Historically, the firm supplied among others [[Patek Philippe]], [[Landeron]], [[Minerva]], [[Valjoux]], [[Eberhard]], [[Heuer]], [[Breitling]] and [[Kelek]].

Dubois Dépraz is still located in Le Lieu, near the headquarters of companies such as [[Jaeger-LeCoultre]], [[Audemars Piguet]], [[Blancpain]], [[Breguet]], and [[ETA]]/[[Valjoux]]. Today it is a specialist in complicated [[cadrature]]s such as [[perpetual calendar]]s and [[chronograph]]s for [[wristwatch]]es.

===== See Also =====
  * [[ETA 2892 modules]]

===== Weblinks =====
  *[[http://www.dubois-depraz.ch/|Dubois Dépraz]]


{{tag>Watch_brands_Switzerland Movement_manufacturers Movement_manufacturers_Switzerland Le_Lieu Vallée_de_Joux}}