Girard-Perregaux Constant Escapement L.M.

Meet Girard-Perregaux's revolutionary Constant Escapement L.M. Why revolutionary? Because it features the constant force escapement, considered the Holy Grail in mechanical watchmaking. It utilizes a spring made of silicon, an extremely valuable substance with high elasticity. This material regulates movement fatigue and enhances the performance of the timepiece.

The Constant Escapement L.M will be offered in Girard-Perregaux's Haute Horlogerie Collection. The price tag? $100,000.