Tachymetric Scale


Tachymetre or Tachymeter or Tachymetric Scale is the Scale of เค้า written at the edge of the clock face (Bazel) their stopwatch. (Chronograph) are second hand. With median house. Visit needles. And minute hand usually like Omega Speedmaster Broad Arrow house above or Rolex Cosmograph Daytona, etc..
Advantage of it to use. Read up to speed. One time unit. The reading from a second hand timer, as if the car runs capture the distance. In one kilometer. The start timing when to press the start key km. First. And after one kilometer. Then press stop the timer. If the pointer position on the Scale which is the reading speed on the spot.
For example, if the second hand 30 seconds after walking one kilometer. (Match point No. 6) will match the position of writing that is 120 km car we run with speed 120 km per visit.
Or if the running time 15 seconds (hand off the No. 3 point) will match 240 Km.chm. etc..
It is also used for timing. As with other. Such as timing the work produced. Since starting production. And successfully so.

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