Audemars Piguet CALIBRE 3126 Instructions For Use Manual - page 14
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Use of functions
using The TachomeTer
The tachometric scale associated with the
chronograph function enables speed read-off. engage
the chronograph (sTArT) and stop the chronograph
after 1 kilometre (sToP). The value indicated by
the chronograph hand on the tachometer scale
corresponds to the average speed over 1 kilometre.
for example :
if the time lapse between (sTArT) and (sToP)
equals 20 seconds, the average speed – read on the
tachometer scale – is 180 km/h (fig. 1).
if the lapse is 30 seconds, the average speed is
120 km/h (fig. 2).
if 40 seconds were needed to cover one kilometre,
the average speed would be 90 km/h (fig. 3).
START
STOP
START
STOP
START
STOP
fig. 1
fig. 2
fig. 3
START
STOP
1 km
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