ROTATING BEZEL
The rotating bezel can show the elapsed time up to 60 minutes. By setting it before
diving, you can know how many minutes you are underwater.
To pr even t a c c id en t al ro t a tion, the ro t a ting b ezel is s o d e signe d tha t
rotation becomes harder in water. Also for saf ty's sake, it roatates only
counterclockwise, so that the time measured is never shorter than the actual
elapsed time.
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
Bezel rotation may become slightly stiffer underwater. This is not a malfunction.
24
" 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 1/5-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 1/5-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 1/5-
second hand:
40 seconds
"90"
Tachymeter scale:
"90" (tachymeter scale figure) x 1 (km or mile)
= 90 km/h or mph
25