SETTING THE CASE ROTATING TOP RING (TIME ZONE III)
The 3rd time zone is set by using the existing setting of the 4th center hand and adjusting the case rotating top ring to the desired time of the 3rd time zone. (Please note: this scale is a
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
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.
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