12 GAUGE
™
INSTRUCTION MANUAL 11
TO USE ThE BEZEL AS A TAChYmETEr
First, ensure the rotating bezel is positioned correctly. The “60” mark on the outer ring scale should be at the top of
the main dial face (12 o’clock position). If necessary, adjust the bezel by doing the following:
1. unscrew the secondary crown from the case. Pull the crown out to the click position.
2. Turn the crown to rotate the bezel until the “60” mark on the outer ring scale is at the 12 o’clock position.
3. Push the crown back in. Gently turn the crown clockwise until it screws back into the case. Be careful
not to over tighten the crown, as this will damage the mechanism.
you are now ready to compute speed based on travel time. Speed can be measured in miles per hour, kilometers
per hour, or another unit of measure per hour. Only speeds above “60” can be measured. To compute speed, do
the following:
Start timing at a marker
When you reach a distance marker (such as a mile or kilometer marker), press button “A”.
Stop timing at the next marker
When you reach the next distance marker (after traveling 1 mile or 1 kilometer), press button “A” to stop timing.
The hand that counts seconds now points to your speed on the tachymeter scale. (Example: If mile markers were
used and the hand now points to “65”, your speed is 65 mph.)
reset
While timing is stopped, press button “B”.
