Jul 15, 2025 · It's called a tachymeter, and it consists of a scale that runs to 3,600, which is the number of seconds in an hour. It can be used to convert time—measured in seconds per unit—into a speed …

A tachymeter-equipped watch can be used to measure distance by timing the travel over the distance while the speed is held constant. The tachymeter scale is rotated to align with the second hand at the …

While you can use a tachymeter to measure units of distance, its primary function is for calculating average speed, and tachymeter scales are always fixed on their respective watches, regardless of …

Apr 1, 2026 · A tachymeter is a graduated scale found on the bezel or the outer ring of the dial of a chronograph watch. Its purpose is straightforward: it converts elapsed time, measured in seconds, …

The tachymeter is one of the most commonly found bezel scales on a watch with a chronograph. Learn how to master this useful function.

Aug 26, 2024 · Well, a tachymeter, also called a tachometer, sits on the dial or bezel of a watch. It combines with the chronograph seconds hand to measure the speed of an object.

Feb 1, 2025 · What is a Tachymeter? A tachymeter is a feature commonly found on chronograph watches, designed to measure speed based on time and distance. It’s a scale that allows the wearer …

Dec 25, 2025 · At its core, a tachymeter is a scale used to measure speed based on travel time over a known distance. It’s typically found on chronograph (stopwatch) watches and works in conjunction …

Jan 19, 2026 · Put simply, a tachymeter (sometimes spelled tachometer) is an instrument designed to measure speed or units over time. In watchmaking, it’s a feature often found on chronograph …

Mar 7, 2026 · A tachymeter is a scale—usually printed on the bezel or around the dial—designed to work with a chronograph. It lets you calculate a rate per hour (most commonly speed) based on how …