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Section
20
Additional Functions
Chronograph - Tachymeter
Some Rotary Chronograph models feature a tachymeter function. This track
is usually located on the bezel of the watch or on the inner chapter ring on
the dial.
A tachymeter allows you to measure the average speed of an object moving
between 2 known points which can be one mile or kilometer away.
In order to do this, start the chronograph at the rst known point by
pressing Button ‘I’. When you have reached the second known point (one
mile or kilometer from the rst point), stop the chronograph by pressing
Button ‘I’ again.
The chronograph hand will now be pointing to a number on the tachymeter
scale indicating the average speed travelled between these points.
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General