Stephen Forsey (Ben Dauchez for Greubel Forsey)
In 1999, Robert Greubel and Stephen Forsey of Greubel Forsey began working together with the premise that all had not yet been invented in mechanical watchmaking, particularly with reference to the tourbillon’s use in wristwatches. They devoted years of research and development to devise new tourbillon systems for the 21st century, which have captured chronometry awards as well as the hearts and imaginations of mechanical watchmaking devotees worldwide.
Please explain the concept behind the tourbillon for those who may not be familiar with it.
The first single-axis tourbillon was invented for pocket watches in order to overcome accuracy problems associated with gravity, lubrication, and materials issues. The tourbillon averages for gravity-induced errors on the balance wheel oscillator by continually rotating the regulating system. This was particularly effective with the pocket watch because its balance was usually in a vertical position.
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