Press button A
to start the chro-
nograph.
Accumulated elapsed time measurement: press the buttons in the following order : A - A / A -...A - B
MODEL VK64/...VD53/...
Press button B to reset
the chronograph. All the
chronograph hands will be
reset to “0” position.
Restart and stop of the
chronograph can be re-
peated as many times as
necessary by pressing
button A
(8 minutes 40 seconds)
Press button A again to
stop the chronograph.
( 20 minutes 10
seconds )Press
button A again to
stop the chrono-
graph.