yarock
10-03-2011, 02:53 AM
I'm a Swatch Irony user for over 3 years. I wondered from time to time what are those numbers that surrounding the watch-glass within a "km/h" label but I couldn't been able to refer the label with the numbers 60-500 since the numbers alined anticlockwise. Last week, I don't know why but I decided look it up and found out that it's called tachymeter (not to be confused with tachometer) and it's for determining the average km/h for the covered distance. Preferably, sitting in the front seat of a vehicle is ideal for the best measurement. e.g. if the second hand (or whatever your chronometer unit is) showing 85 after 1 km, your velocity is 85 km/h.
Now I'm scared from trying it someday to see it actually works.
Now I'm scared from trying it someday to see it actually works.