What is a chronograph? The term chronograph comes from the Greek chronos (time) and grapho (to write) and means “writer of time”, commonly indicating a wristwatch that can be used to measure intervals of time. It also has an indication of the time and often also a date display. Many chronographs are equipped with a scale to measure, for example, speed. The tachometric scale is the most suitable for this purpose and is present in many models. Telemetric and pulsometric scales, on the other hand, are much rarer. The latter were used in the past by doctors to measure the...