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The Encyclopedia of Horology

Complication · Precision

Orbital Carousel Tourbillon

Partially verified

A tourbillon or carousel that orbits the entire dial once per hour.

Definition

A tourbillon or carousel that orbits the entire dial once per hour.

Historical origin

A spectacular modern display complication where the regulator acts as the minute hand.

How it works

The entire escapement assembly is mounted on a rotating platform geared to the centre.

It performs two rotations: one around its own axis and one around the dial.

Pocket watch context

Rarely seen; some early 'wandering hour' watches used similar principles for the display but not the regulator.

Wristwatch context

Found in Ulysse Nardin's 'Freak' and similar avant-garde designs.

Identification

  • Regulator visible on a rotating arm that points to the time
  • No traditional dial or hands

Servicing notes

Requires clean-room assembly and specialized lubrication for the large-diameter bearings.

General guidance only. Complicated mechanisms should be assessed and serviced by a qualified watchmaker or clockmaker specialist, not adjusted at home.

Related photographs

Image-Greubel Forsey Tourbillon 24 Secondes Incline
Image-Greubel Forsey Tourbillon 24 Secondes Incline — Greubel Forsey, CC BY 3.0. Wikimedia Commons file page
Tourbillon
Tourbillon — Simon Schaller (Benutzer: simusch, eigenes Bild), Public domain. Wikimedia Commons file page

No confidently matched photograph of this subject has been found yet. These photographs show a closely related record, and are not examples of the type described on this page.

Sources & references

  1. de Carle, D., Watch and Clock Encyclopedia
  2. Britten, F. J., Old Clocks and Watches and Their Makers
  3. Horological Journal (British Horological Institute), technical articles

Where sources disagree, the disagreement is stated rather than resolved silently.