GREUBEL FORSEY - NANO FOUDROYANTE EWT

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MECHANICAL NANO APPLIED TO THE FOUDROYANT JUMPING SECONDS
• LESS ENERGY USED – a reduction in the amount of energy consumed by a factor of 1,800
• LESS SPACE USED – 96% less compared to a conventional mechanism
 

For over ten years, Greubel Forsey’s EWT (Experimental Watch Technology) Laboratory has been working to push the boundaries of mechanical watchmaking and has had particular success in the domain of the Mechanical Nano project. Thanks to this totally new concept and following the recent application of patent No. EP 3220207 A1, Greubel Forsey is unveiling the first Nano Foudroyante EWT.

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Mechanical Nano has led Robert Greubel and Stephen Forsey, as well as the engineers and designers at Greubel Forsey, to completely rethink the mechanism of the traditional foudroyant jumping seconds. This new construction consists, first of all, of a mobile with a very low moment of inertia, which takes its information directly from the escape wheel. This principle means that a full gear train is no longer needed to ensure the sub-division of seconds, since the information is obtained from the wheel, which distributes and gives the rhythm to the energy of the movement. Energy consumption can now be expressed in nanojoules (nJ).

   STANDARD FOUDROYANTE SYSTEM

STANDARD FOUDROYANTE SYSTEM

   NANO-FOUDROYANTE P1 SYSTEM

NANO-FOUDROYANTE P1 SYSTEM

The results
Compared to a traditional foudroyant jumping seconds mechanism, the Greubel Forsey Nano Foudroyante EWT consumes 1,800 times less energy and occupies 96% less space. All of this research has made it possible to create a truly original and innovative foudroyant jumping seconds mechanism that makes best use of energy and available space in the movement of a mechanical timepiece.