Montres Corum SÀRL is a Swiss watch manufacturer that was founded in La Chaux-de-Fonds in 1955 by Gaston Ries and his uncle René Bannwart. The company name is derived from the Latin word quorum.

The Corum company only produces watches in the high-price segment, but is not a watch manufacturer. The Corum company obtains the movements from ETA SA or Frederic Piguet, for example. Corum is known for unusual design ideas. With the Coin Watch, for example, the case is made from an official $ 20 gold coin. In addition to the Coin Watch described, the Admirals Cup, as well as the Golden Bridge and the Bubble, are other well-known models. In addition to the unusual design, technically unusual movements are also used. zum Einsatz.