tachymeter's Usage Examples:

Men's Chronograph Skindiver Watch: This stainless steel watch has a rotating unidirectional click-stop bezel, sapphire crystal, water resistance up to 330 feet, a tachymeter inner ring and quartz movement.

This model is perfect for action lovers with anti-shock options, triple chronographs and a tachymeter scale.

This model is both attractive and highly functional with a useful tachymeter scale and dual 160 degree sub dials.

As far as performance, a tachymeter bezel, mineral crystal, water resistance and screw-down case back speak for themselves.

Equipped with a calendar, chronometer, and a tachymeter, it's no wonder that the Omega Speedmaster was the first watch to be worn on the moon.

And if that isn't cool enough, the Speedmaster Day-Date comes equipped with a day-date, chronograph with 12 and 30 minutes registers, tachymeter, and a 24 hour display.

Between the six VX-200 models, you can find chronometers, calenders, and tachymeters.