Glossary
Age of the moon
Age of the moon
The time between successive new moons, shown on a watch dial from 1 to 29½ days, corresponding to the period of lunar revolution around the Earth.
Related theme:
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.