here many are content to reproduce tried and tested solutions, Lederer questions everything; absolutely everything. This philosophy is borne out by his latest research into the constant-force remontoir. In Lederer’s view, the Gafner system, considered a benchmark in watchmaking, contains structural imperfections. Once the barrel is tightly wound, internal friction increases and the system ultimately uses up part of the force it is meant to regulate. Lederer observed this shortcoming and made it the starting point for extensive research, aimed at reinventing the architecture of the constant-force remontoir.

When developing the CIC 39, he introduced an entirely new solution whereby the remontoir’s studs are placed directly on the axis where force is greatest, rather than conventionally on a secondary axis. By focusing on the heart of the energy flow, he reduced by 90% the mechanical disturbances inherent to the traditional system and, at the same time, reinforced isochronal stability in all positions: an essential condition for a watch designed to be worn on the wrist.

In a world where true innovation is rare and never the most profitable nor easiest path, Lederer persists in reinventing what many believe to be set in stone. His work reminds us that Haute Horlogerie is not simply an art of form but a living science of movement.

www.lederertimepieces.com