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TACHYMETER FUNCTION
(not all models)
The tachymeter will only determine speeds greater than
60 units per hour using this method; slower speeds can
be measured by decreasing the unit of measurement.
The function performed by a tachymeter is independent
of the unit of distance (e.g. statute miles, nautical miles,
kilometers, meters etc.) as long as the same unit of length
is used for all calculations.
1. Determine the start and finish markers for your pre-
determined distance.
2. Start the chronograph once the target for speed
measurement passes the start marker.
3. Stop the chronograph once the target for speed
measurement passes the finish marker.
4. The chronograph second hand is compared to the
tachymeter markings to determine the target’s speed.
HOW TO ADJUST BRACELET
(Variations of the following bracelet sections apply to all
watch models).
SLIDING CLASP BRACELET
1. Open locking plate.
2. Move clasp to desired bracelet
length.
3. Exert pressure while holding locking plate and slide
clasp back and forth until it engages in grooves on
underside of bracelet.
4. Press locking plate down until it snaps closed. Clasp
can be damaged if excessive force is used.
