TACHYMETER
Chronograph
second hand
Chronograph
minute hand
Hour hand
Second hand
I F M F S 0 0 / 0 1
24 hour
hand
Button A
Minute hand
Normal crown
position
Button B
Calendar
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I F M F S 0 0 / 0 1
TACHYMETER
• The tachymeter is the device which measures the speed of an automobile.
Knowing is how many seconds the car covers a distance of 1 Km, the meter
can measure the approximate average speed per hour during a journey (up
to the maxinum measurable range of tachymeter is 60 seconds).
• If the chronograph is started at the same time as measurement, and stopped
after 1 Km, the average speed per hour can be determined according to the
position of the second hand.
• If the car covers the distance of 1 Km in 45 seconds, the average hourly
speed during the journey will be about 80 Km.
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