![background image](http://html1.mh-extra.com/html/omega/speedmaster-moonwatch/speedmaster-moonwatch_user-manual_4227105002.webp)
TACHYMETRIC SCALES
The desired information is read between the central seconds hand of the
chronograph and the corresponding scale, over a maximum duration of 60
seconds.
Example: calculating the speed of a car.
Record the time the car takes to cover a distance of 1 kilometre. Read off the
tachymetric scale the speed indicated by the central seconds hand. In this case,
the car is travelling at 120 km/h.
2 / 2