Robert Greubel and Stephen Forsey are first and foremost inventors. Their exquisitely finished timepieces are validations of the underlying fundamental inventions they develop. EWT®, or Experimental Watch Technology, is Greubel Forsey's proprietary research and development platform, unique in the field of haute horlogerie.
This fully equipped EWT® facility enables Greubel Forsey to experiment, test, ratify and manufacture virtually every type of component, so new inventions can be continually and efficiently improved.
Inventions currently progressing through the EWT® pipeline include the Binomial mono-material balance and spring, and the Différential d’Egalité constant force device.