Zodiac 8371B, Manual

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Tachymeter Usage
The Tachymeter function is used to measure the rate of speed of an object over
a fixed distance . The scale, located either on the top ring or the inside bezel of
the timepiece, will display speed in Miles, Knots, or Kilometers per hour .
Example of usage: In a driving race, the car passes the first mile (km)
post when the seconds hand is at the 12:00 position (60 second mark).
Commence measurement. At the 36 second mark the car passes the second
mile (km) post, you will see that the car traveled a distance of one mile at 100
miles (km) an hour.
Adjusting the chronograph hands to zero position (8371B)
1 . Unscrew (if necessary) and pull crown out to position II (the two
chronograph hands are in their correct or incorrect zero position) .
2 . Press the pusher A two times with a time interval of 2 seconds . The hand
counter at 9 makes a turn .
3 . Press pusher B continually for quick setting or push step by step to adjust
the minute .
4 . Press pusher A . The second hand makes a turn . Push B continually for
quick setting and push step by step to adjust the second .
5 . Push and screw (if necessary) crown back to position I to exit .
Adjusting chronograph hands to zero position (Ronda Z50)
1 . Pull crown out to position 3 (all chronograph hands are in their correct or
incorrect zero position .)
2 . Keep both pushers depressed simultaneously for at least 2 seconds (the
second counter hand rotates by 360°: corrective mode is activated .)
3 . Adjust the second counter hand by pressing pusher A continually for quick
setting or push step by step to adjust the second .
4 . Press pusher B to adjust next hand .
5 . Adjust the minute counter by pressing pusher A continually for quick
setting or step by step to adjust the minute .
6 . Push the crown back to position I to exit .