A device similar to a tourbillon. The karussel was invented in 1892 by a Danish watchmaker named Bonniksen as an alternative to the tourbillon, which is more difficult to make and considerably more expensive. A tourbillon generally rotates around its own axis once a minute. The oscillation and escapement system inside the karussel describes a 360° circular arc once every hour. Some karussels have a shorter orbital cycle. Besides its slower rotation speed, another essential difference between a karussel and a tourbillon lies in the propulsion of the rotating organ. A tourbillon is rotated by the fourth wheel, which means that the rotations of the tourbillon cage are indispensable for the forward and backward oscillation of the balance and thus for the functioning of the entire movement. If the tourbillon stops, so does the entire watch movement. A karussel is usually driven by the third wheel. The watch therefore continues to run even if the karussel, which is usually made as a plate, should stop. Karussels were first incorporated into wristwatches in 2001.

A clock whose mainspring is wound through the crown.