CITIZEN QUARTZ
Racing Chrono
Model No. JNOXXX
Caliber No. C310
• Instruction Manual
CTZ-B6770
Thank you for purchasing a CITIZEN QUARTZ
Watch. To ensure correct use, please read these
instructions carefully. Please confirm that the
CITIZEN International Guarantee Card is included
for your possible claim.
A. Five Features
1. Lap time, lap number are displayed.
2. By setting the distance of one lap around a race
circuit, the speed is displayed.
3. When the racing ends, the race’s
• Best lap time, the lap number, and speed
• Average lap time and average speed
• Total time and total laps can be displayed.
4. There is a “hand retractor function” that prevents
the analog hand from covering parts of the display.
5. The timer can be selected from “analog (hand)
display” or “digital display” (You can use both at
the same time).
B. Name of Parts
C. Switching the Mode
This watch has the following 4 main functions
(modes) can be switched by pressing button
嘷
M
.
<Note>
When changing modes, make sure you have
pressed button
嘷
M
in properly to change modes.
D. Adjusting the Time and Calendar
1. Set the mode to (Time/Calendar) mode by
pressing button
嘷
M
.
2. Pull out button
嘷
M .
• The second hand will return to the “0” position.
2.
• The day of the week will disappear and the
seconds will flash in the digital display.
2.
• “SET” will appear in the digital display.
* At the time, if the second hand does not return to
the “0” position, please refer “Hands standard
position” on page 17, and perform operation.
3. Press button
嘷
A
to select the flashing digit you
wish to adjust,
4. Adjust the flashing digit of the time with button
嘷
M .
5. Push back button
嘷
M
to the normal position after
completing the time adjustment.
5.
• All hands will move to the adjusted time
automatically.
5.
• The digital display will return to the normal display.
The analogue time and the
digital time in this watch are
synchronised. If you adjust
the digital time, the analogue
time is adjusted automatically.
E. Alarm Function
1. Press button
嘷
M
to set the digital mode mark to
(ALM) mode.
2. Pull out button
嘷
M
. The hour digit in the digital
display will flash for the alarm set time ‘Set’ will
appear in the digital display.
3. Press button
嘷
A
to select the digit (hour/minute).
4. Press button
嘷
C
to set the alarm time.
5. Push back button
嘷
M
to the normal position after
complete adjustment.
✽
Press any button to stop the alarm sound.
<Note>
The alarm sound may sometimes start and stop.
This is because when the watch hands move, the
alarm sound is momentarily adjusted.
Switching the alarm ‘ON/
OFF’ with button
嘷
C
.
The alarm time and normal
time (12/24 hour system)
are synchronised. When
A/P is displayed, make sure AM/PM are set correctly.
This is a combination watch which can conveniently
display data while watching races (car, bike, etc.)
Setting the alarm time
