Tachymeter - Seiko 7T62 Instrucciones

TACHYMETER

(for models with tachymeter scale on the dial)
To measure the hourly average speed of a vehicle
Use the stopwatch to determine
1
how many seconds it takes to go
1 km or 1 mile.
2 Tachymeter scale indicated by
STOPWATCH second hand gives
the average speed per hour.
Tachymeter scale can be used only when the time required is less than 60 seconds.
Ex. 2: If the measuring distance is extended to 2 km or miles or shortened to 0.5 km or miles
and STOPWATCH second hand indicates "90" on tachymeter scale:
"90" (tachymeter scale figure) x 2 (km or mile) = 180 km/h or mph
"90" (tachymeter scale figure) x 0.5 (km or mile) = 45 km/h or mph
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Ex. 1
STOPWATCH
second hand:
Tachymeter scale: "90"
"90" (tachymeter scale figure) x 1 (km or mile)
= 90 km/h or mph
40 seconds
15