Glossary

Autoquartz

A movement that functions like a quartz movement yet is wound like a mechanical movement.
An auto-recharge mechanism (oscillating weight) tightens the mainspring which, as it unwinds, triggers a micro-generator which converts mechanical energy into electrical energy. This energy is stored in an accumulator.
The system then functions like a traditional quartz watch, with the integrated circuit regulating the supply of energy and providing impulses to the gear train.

Research

Research

For research into the first Rieussec chronographs, the Fondation de la Haute Horlogerie wishes to locate this piece, made between 1820 and 1830.