
CAL. VD50
1/10 SECOND RETROGRADE CHRONO
GRAPH
ENGLISH
TIME/CALENDAR
l
Hour, minute and second hands
l
Date displayed in numerals
STOPWATCH
l
Measures up to 60 minutes in 1/10 second increments.

SCREW DOWN CROWN
[for models with screw down crown]
Locking the crown
1
Turn Crown counterclockwise until you no
longer feel the threads turning.
2
Crown can be pulled out.
1
Push Crown back in to normal position.
2
Turn Crown clockwise while pressing it
lightly until tight.
Unlocking the crown
DISPLAY AND CROWN/BUTTONS
c: Second click
b: First click
a: Normal position
Hour hand
STOPWATCH
minute hand
STOPWATCH
1/10-second hand
Minute hand
A
a b c
B
Date
Second hand
CROWN
STOPWATCH
second hand

ADJUSTING THE STOPWATCH HAND POSITION
CROWN
l
Before setting the time, be sure to check that the STOPWATCH hands are in
the “0” position when the stopwatch is reset. (For resetting the stopwatch, see
"STOPWATCH".)
* If any of the STOPWATCH hands do not return to the "0" position when the stop-
watch is reset, follow the procedure below to reset the hands.
A
Press repeatedly to reset the
STOPWATC H 1/ 10 s ec on d
hand to the “0” position.
s
B
Press repeatedly to reset the
STOPWATCH second and
minute hands to the “0” position.
s
STOPWATCH
1/10-second
hand
STOPWATCH
minute hand
Push back in to normal
position.
CROWN
TIME/CALENDAR SETTING
1
Pull out to rst click, and turn clockwise until the previous day’s date
appears.
2
Pull out to second click when Second hand is at the 12 o’clock position.
3
Turn clockwise until the desired date appears.
4
Turn to set Hour and Minute hands.
5
Push back in to normal position in accordance with a time signal.
STOPWATCH
second hand
Date
A
B
Hour hand
Minute hand
Second hand
CROWN
Pull out to second click.
s