2007 - Concept Gyrolab balance wheel shaped like a rounded H

Jaeger-LeCoultre presented prototype watch of Master Compressor Extreme LAB  equipped for the first time with a new Gyrolab balance in 2007. It was made of platinum iridium, one of the densest and non-toxic physical bodies. The moment of inertia Gyrolab balance was 11.5 mg x cm2. (for comparison ETA 2892: 10.1)
The balance in the shape of the oval H-arms has significantly reduced air resistance. Research has shown that the large surface area of the balance wheel reduces aerodynamic performance and increases the need for energy to maintain fluctuation.
The new design of the balance arm has been carefully designed to reduce the mass/inertia ratio, so that the rotation speed remains constant regardless of the current position, resulting in a more precise adjustment of the watch.      

Gyrolab was included in the series production of the "Geophysic® 1958" collection In 2014.

Application: Tomasz Jakubas

Other records: Timeline of Watchmaking Innovations