Glossary
Asthmometer
A chronograph or sports counter whose dial includes an asthmometer scale indicating the number of respirations per minute. Usually calibrated for 15 respirations, the chronograph hand is stopped after the patient's 15th respiration; the dial gives the number of respirations per minute.
See complication.
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.