What is the difference between chronograph and tachymeter?
What is the difference between chronograph and tachymeter?
A chronograph is, simply put, a stopwatch. A tachymeter, meanwhile, measures speed. A tachymeter bezel is used to calculate speed or, in other words, measure elapsed time over a fixed distance. To use a tachymeter bezel, press the chronograph pusher to start the stopwatch.15 Feb 2018