What’s tachymeter bezel ?
Tachymeter bezel is a ring around the watch face, on it have numbers and marks . Tachymeter bezel provide the medium speed of an object on a fixed distance (1km). It’s also have Tachymeter bezel for distance is 1 mile.
The number on the bezel is the speed of an object after the distance 1 km.
How to use tachymeter bezel ?
Step1 : press the lower right button reset new calculate.( The second hand will go and stop at position 12 o’clock)
Step 2: Press again the upper right button when you start driver. ( The second hand start running )
Step3 : After distance 1 km. Press upper button again. ( The second hand stop)
And the number on the Tachymeter at the position of the second hand stop is the medium speed you travel in the distance 1 km. (This only right for the time you go 1 km less than 1 minute)
Do you need tachymeter ?
+ Yes it decoration for your watch, make it look pro.
+ The calculate of tachymeter is not much useful because it only for distance 1 km and the time is less than 1 minute.
If the distance different or the time longer than 1 minute. You have take more calculate to have speed.