Bulova PRECISIONIST CHRONO Settings Manual
PLEASE REFER TO THE FOLLOWING DIAGRAM WHEN READ-
ING THE FOLLOWING INSTRUCTIONS.
A) SETTING THE TIME
1. Pull the crown out to the second click position
2. Turn the crown clockwise to set the hour and minute hands.
3. The date changes at approximately midnight, so be sure to set the
hands to the correct A.M. or P.M. time.
4. Push the crown back in to the normal position.
B) CORRECTING THE DATE
1. Pull the crown out to the first click position.
2. Turn the crown clockwise to quickly correct the date. Do not use
this function between the hours of 9 P.M. and 3 A.M. because the
date changing mechanism is engaged and the date correction will not
be accurate.
3. Push the crown back in to the normal position.
C) OPERATING THE CHRONOGRAPH (CHRONO)
1. Push the Mode Button “C” to change the mode of the watch to
chronograph timing. The long second hand will move slowly to the 12
oʼclock starting position. Unlike the smooth operation of the second
hand during normal timing, this hand will move in one second incre-
ments during chrono timing.
2. Check that the other chrono hands are in their correct zero starting
position.
If not, go directly to section “E” below to reset the hands correctly,
then come back to this instruction. If yes, then you may use the
chronograph as follows.
3. Push button “A” to start the chronograph timing. Push it again to
stop the Chronograph. The maximum timing is 12 hours.
4. You may “ADD” times together by starting and stopping the chrono-
graph repeatedly.
5. After timing is completed, push button “B” to return the chronograph
hands to the starting position.
6. To return to normal time mode, push Mode button “C”. The second
hand will resume keeping the previously set time.
D) READING THE CHRONOGRAPH
1. When you stop the Chronograph timing by pushing button “A”, the
Chronograph hands will indicate the final reading in hours, minutes,
seconds, 1/10 seconds, 1/100 seconds and 1/1000 seconds.
2. To read the final timing, use the last number located BEFORE the
hand position of each hand. The exceptions are the Chrono seconds
and the 1/1000 seconds which will read at the exact mark on itʼs
respective dial.
SAMPLE OF THE CHRONOGRAPH READING:
Hand
Position
Reading
CHRONO HOURS
BETWEEN 4 AND 5
4 HOURS
CHRONO MINUTES
BETWEEN 3 AND 4
3 MINUTES
CHRONO SECONDS
AT 12
12 SECONDS
CHRONO 1/10 SECONDS*
BETWEEN 6 AND 7
6/10 OF A SECOND
CHRONO 1/100 SECONDS*
BETWEEN 1 AND 2
1/100 SECONDS
CHRONO 1/1000 SECONDS**
AT “04” POSITION
4/1000 SECONDS
* The 1/10 and 1/100 chrono hands move for 30 seconds only at the
beginning of the timing. After 30 seconds they will stop and wait for
the end of the timing. They will then indicate the elapsed time.
** The 1/1000 chrono hand will not move to indicate the reading until
the end of the timing.
For the above sample hand positions, the exact chrono reading is:
4 hours, 3 minutes and 12.614 seconds.
E) CORRECTING THE CHR0NO HANDS POSITION IF NECESSARY
If the chrono hand positions are not correctly located at the zero start-
ing point (12 oʼclock for all chrono hands except for the 1/1000 retro-
grade hand which should start at the “000” mark), then proceed as
follows:
1. Pull the crown out to the first click position. Push and hold button
“A” to correct the 1/10 chrono hand and the 1/100 hand to the zero or
12 oʼclock position. There will be a delay of about 3 seconds before
the hands start to move.
NOTE: These hands are permanently synchronized so that one revo-
lution of the 1/100 hand equals one tenth of a revolution of the1/10
second hand.
2. Pull the crown out to the second click position. Push and hold but-
ton “A” to correct the 1/1000 retrograde hand to the “000” starting
position. There will be a 3 second delay as above
3. With the crown still in the second click position, Push and hold but-
ton “B” to correct the chrono second hand to the zero or 12 oʼclock
position. There will be a 3 second delay before the hand moves.
4. Push the crown back in to the normal position.
5. After the necessary corrections, go back to section “C)” for chrono
operation.
BOOK NO. 922 PRECISIONIST CHRONO
Watch Setting Guide
8/2012
Page 1 of 9