Rotating Bezel; Tachymeter - Seiko Cal. V17 Instructions Manual

ROTATING BEZEL

(for models with rotating bezel)
The rotating bezel can show the elapsed time up to 60 minutes.
1. Turn the rotating bezel to align its "
* The rotating bezel rotates with clicks. With each click, it turns half a minute.
2. To know the elapsed time, read the number on the rotating bezel that the
minute hand points to.
Example:
Minute hand
"30" on rotating bezel
20
" mark with the minute hand.
Start(10:10 AM) " " mark
30 minutes have elapsed.

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
the STOPWATCH second hand
gives the average speed per
hour.
l 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 the 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
Ex. 1
STOPWATCH
second hand:
40 seconds
"90"
Tachymeter scale:
"90" (tachymeter scale figure) x 1 (km or mile)
= 90 km/h or mph
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