Telemeter is a watch feature that allows you to measure distances and speeds by combining a chronograph with a tachymeter scale. It is typically used to measure the speed of a car or the distance of gunfire. It works by measuring the time it takes for a sound to travel a known distance, and then using the tachymeter scale to convert the time into the desired measurement. Telemeter watches are popular among car enthusiasts and are usually found on chronograph-style watches.
