Citizen C440 User manual

CITIZEN QUARTZ
YACHTING MAGIC LIGHT
Model No. JQ2XXX/
Cal. No. C440
• INSTRUCTION MANUAL
CTZ-B6805
1. Main Features
This is an analog and digital combination watch
equipped with Race Timer for marine sports (Cal.
C440), Chronograph for timing race events, Timer
and other functions.
EL (electro-luminescence) Light illuminates display
in the dark.
2. Parts Name and Functions
(When reading this instruction manual, please keep the diagram above in view.)

3. Setting AnalogTime Display
1) Pull out the crown and second hand stops.
2) Turn the crown and set hands to the correct time.
3) Push the crown back in to restart the watch.
To set the watch to the correct time:
Stop seconds hand at “0”. Move minutes hand a few
minutes ahead of the time you want to set, then
move it back to the correct time and push crown
back synchronising with the time tone or time
casting.
* Analog and digital displays can be set to
different times to use as a dual time watch.
4. Mode Selection
In addition to Time display, Cal. C440 has 6 functions
of Calendar, Alarm-1,Alarm-2, Chronograph, Race
Timer and Timer. Mode of watch changes each time

Mbutton is pressed. See Mode Indicator to check
the present mode.
Auto-Return:
Display will return automatically to normal Time
display mode if left inAlarm-1 or Alarm-2 for more
than 2 minutes without any operation.
In addition to Time display, Cal. C450 has 4 functions
of Calendar, Alarm, Chronograph and Timer. Mode
of watch changes each time 
Mbutton is pressed.
See Mode Indicator to check the present mode.
Auto-Return:
The watch will return automatically to Time mode if
left inAlarm mode for more than 2 minutes without
any operation.
5. Using Digital Functions
• EL light is illuminated when 
A
button is pressed in normal Time
display mode.
To set for Summertime
1) Press 
Bbutton for more than 2
seconds in normal Time display
mode. “SUMMER, ON/OF”
flashes.
2) Press 
Abutton to set for
summertime. Indicator changes to
On or Off each time this button is
pressed.
• “SUMMER” is on display when set to summertime.
The watch shows the time one hour earlier than
the regular time when it is set to summertime.
To adjust Seconds
1) Press 
Bbutton in adjustment mode. (“SUMMER”
is flashing). Seconds flashes.
2) Press 
Abutton while Seconds are flashing.
Digits return to “00”, and restarts.
To adjustTime display
1) Press 
Bbutton in adjustment mode (Seconds are
flashing). Flashing digits change in order as
shown on diagram each time button is pressed.
2) Press 
Abutton to adjust flashing digits. Press
and hold Abutton for rapid advancement.
• Summertime On/Off is changed each time 
A
button is pressed.
• 12/24-hour display is changed each time 
Abutton
is pressed.
• Be sure to setAM/PM mark correctly when using
12-hour display system.
• Auto-return to normalTime display will activate when
the watch is left in adjustment mode for more than
2 minutes.
• If 
Mbutton is pressed in adjustment mode, display
will return directly to normal Time.
Linkage with Summertime:
Setting ofAlarm 1&2 (Cal. C440) orAlarm (Cal. C450)
does not change when Summertime is set in Time
display mode.
Cal. C450
Cal. C440
ASetting Digital Time Display

• Calendar shows Month, Date and
Day.
• EL Light is illuminated while 
A
button is pressed and held in
Calendar display mode.
To set Calendar
1) Press 
Bbutton in Calendar mode
for more than
2 seconds. Month flashes.
2) Flashing digits change in order as
shown in the diagram each time 
B
button is pressed.
3) Press 
Abutton to adjust flashing
digits. Press and hold Abutton for
rapid advancement.
• Year can be set from 1996-2099.
•Auto-return to normal Calendar display will activate
when the watch is left in adjustment mode for more
than 2 minutes
• When Calendar is set to a non existent date (e.g.,
February 30) , display will show automatically first
day of next month when returned to normal mode.
• Month-end adjustments are not necessary as
Calendar is programmed to be set automatically.
• If 
Mbutton is pressed in adjustment mode, display
will return directly to normal Calendar display mode.
To set Alarm-1 (Cal. C440) /Alarm-
2 (Cal. C450)
1) Press 
Bbutton inAlarm mode for
more than
2 seconds. Hours flash.
2) Press 
Bbutton as necessary to
select digits to be adjusted.
Press 
Abutton to setAlarm.
• If Time display is set to 12-hour
display system, it is linked toAlarm.
Make sure thatAM/PM is set
correctly.
•Alarm setting does not change
when Summertime is set in Time
display mode.
To switch Alarm On/Off
• Press 
Abutton inAlarm mode to switch Alarm
On/Off.
Alarm Sound
•Alarm buzzer will sound for about 20 seconds.
Press any button to stopAlarm sound.
Alarm Monitor
•Alarm will sound while 
Abutton is pressed in
Alarm mode.
Auto-Return
• Display will return automatically to normalAlarm
display mode if left inAlarm adjustment mode for
more than 2 minutes without any operation.
• Display will return automatically to Time display
mode when 2 minutes have elapsed in normal
Alarm display mode.
Instant Manual Return
• Press 
Mbutton inAlarm adjustment mode to return
instantly to normalAlarm display.
•Alarm-2 can be set and operated in same way as
Alarm-1.Alarm-2 has a different sound.
Chronograph measures up to 23 hours 59 minutes
59 seconds in 1/100 second. It will stop at next
second when it reaches exactly 24 hours and reset
to 00 minute 00 second 00. Chronograph also has
Split Time measurement function.
[Display ofTime Measurement]
• Chronograph shows Minutes, Seconds and 1/100
Second up to 60 minutes and will change to Hours,
Minutes and Seconds after 60 minutes.
To MeasureTotal ElapsedTime
1) Press 
Abutton to start/stop Chronograph.
• Start/stop can be repeated for any number of
times by pressing 
Abutton.
• EL Light will turn ON for 4 seconds when
counting is stopped by pressing 
Abutton.
2) Press 
Bbutton when counting is stopped to reset
chronograph.
To Measure SplitTime
1) Press 
Abutton to start/stop Chronograph.
2) Press 
Bbutton while Chronograph is counting.
Split Time will appear for 10 seconds
• “SPL” will flash when Split Time is shown.
• EL light will turn ON for 4 seconds when 
B
button is pressed.
3) Press 
Bbutton when counting is stopped to reset
Chronograph.
BSetting Calendar
CSetting Alarm-1 (Cal. C440) /Alarm(Cal. C450)
DSetting Alarm-2 (Cal. C440)
EUsing Chronograph

* If switched to another mode while Chronograph is
running and then returned to Chronograph mode,
the watch will show time measurement going on at
time of mode switching. (If switched while Split Time
is shown, the watch will return to Chronograph
running mode.) However, if Chronograph counting
has exceeded 24 hours, the watch will return to
Chronograph reset mode.
• Race Timer can be set to 15 different duration of
countdown in 60, 55, 50, 45, 40, 35, 30, 25, 20, 15,
10, 6, 5, 3 and 1 minute. Use this function by setting
to one of these countdown lengths as desired.
• When Race Timer countdown is finished, Time-up
signal will sound for 5 seconds and the watch will
be automatically set to Chronograph mode (Auto-
Chrono) and start counting from 00 hour 00 minute
00 second.
To Set RaceTimer
Press 
Bbutton in Race Timer mode. Length of time
countdown will change 15 times starting from 60
minutes to 1 minute. Set Race Timer to desired
length. Press and hold 
Bbutton for rapid
advancement.
To Use RaceTimer
1) Press 
Abutton in Race Timer mode. Timer starts
countdown from the time set.
2) Press 
Abutton stop/start
countdown.
3) Press 
Bbutton when countdown
is stopped. Race Timer display
returns to initial setting.
4) If 
Bbutton is pressed while
countdown is continuing,
Race Timer returns to initial
setting and automatically restarts
countdown.
5) When Race Timer countdown is finished, Time-
Up signal will sound for 5 seconds and the watch
will be automatically set to Chronograph mode
(Auto-Chrono) and start counting from 00 hour 00
minute 00 second.
• Buzzer will sound to mark remaining time at 10, 5,
3, 1 minute and 50, 40, 30, 30, 10, 5, 4, 3, 2, 1
second.
Auto-Chrono Measurement
• When Race Timer countdown is finished, Time-Up
signal will sound and the watch will be automatically
set to the Chronograph running mode (Auto-Chrono).
•Auto-Chrono will start counting from 00 hour 00
minute 00 second.
Using Auto-Chrono
1) To stopAuto-Chrono, press 
Abutton whileAuto-
Chrono is running. To restart Auto-Chrono, press

Abutton whileAuto-Chrono is stopped.
2) To switch to Race Timer running mode, press B
button whileAuto-Chrono is running.
* When Race Timer and Auto-Chrono are running,
microcomputer in the watch keeps repeating Race-
Timer countdown as shown in diagram.
If switched to Race Timer from Auto-Chrono, the
watch will show Race Timer countdown in progress.
(Countdown of microcomputer does not stop even
ifAuto-Chrono is stopped.)
3) To return to initial Race Timer setting, press 
B
button inAuto-Chrono stop mode.
• The watch will return to Time display mode if 
M
button is pressed in Race Timer or Auto-Chrono
mode.
• If switched to another mode from initial Race Timer
setting, Race Timer running, Race Timer stop,
Auto-Chrono running orAuto-Chrono stop mode
and then reset to Race Timer, function will return to
the mode set at the time of switching. However, if
Auto-Chrono counting has exceeded 24 hours, the
watch will return to initial Race Timer setting Mode.
• Timer can be set up to 60
minutes in unit of one minute.
Buzzer will sound for 5 seconds
when countdown is up and
display will return to initial set
time.
To setTimer
Press 
Bbutton in Timer mode
when set time is flashing. Set time digits decrease in
units of one minute. Press and hold 
Bbutton from
the rapid change of digits.
To useTimer
1) Press 
Abutton. Timer starts countdown from set
time.
FUsing Race Timer (Cal. C440)
Display after switching to Race Time/Auto-Chrono
GUsing Timer

2) Press Abutton to stop/restart Timer. EL Light
turns On when 
Bbutton is pressed while Timer is
running.
3) Press 
Bbutton when Timer is stopped to return
to initial set time.
• If switched to another mode from initial Timer
setting, Timer running or Timer stop mode and then
reset to Timer, function will return to the mode set
at the time of switching. However, if Timer
countdown is finished, the watch will return to initial
Timer setting.
6. EL Light
EL Panel
El (electro-luminescence) panel is a fluorescent panel
which becomes illuminant when voltage is applied
to it.
EL Illumination
EL panel will illuminate:
1) When 
Abutton is pressed and held in normal
Time or Calendar mode.
2) When 
Bbutton is pressed to display Split Time or
Abutton is pressed to stop Chronograph
counting in Chronograph mode.
3) When 
Bbutton is pressed and held in TImer
countdown mode.
7. All-Reset Function
UseAll-Reset function when battery has been
replaced or the watch indicates or operates
abnormally.
1) Pull out crown
2) Press 
A,  Band  Mbuttons simultaneously.
All digital displays disappear.
3) Release three buttons.All digital displays are
shown.
4) Push back crown. Buzzer sounds in confirmation.
After completing all-reset procedures, adjust
displays in each mode.
8. HowTo UseThe Rotating Bezel
(Some models are not equipped with the rotating
bezel).
Many yacht races are set in triangulated course
layouts such as the one described here where the
winner is the boat that navigates the designated
course around the marks in the fastest time.
Direction: Navigational bearings are most often
given in terms of degrees.
North: 0° East: 90° South: 180°
West: 270°
Starboard: The right-hand side
of a yacht looking forward.
Port: The left-hand side of a
yacht looking forward.
Using the rotating bezel (1)
1) Before a race, determine the direction of the wind
from the direction and position of the windward
marker. Line up the number representing the wind
direction (in degrees) on the bezel with the
triangle () mark at 12 o’clock.
(Ex.: northeasterly wind at 45°)
2) The course bearing from the windward mark to
the wing mark (starboard reach) is read off the
bezel, in degrees, at the green triangle () on the
bottom of the left side of the dial.
3) The course bearing from the wing mark to the
leeward mark (port reach) is read off the bezel, in
degrees, at the red triangle () on the bottom right.
4) When sailing from the windward mark to the
leeward mark, the small, white triangle at the
bottom of the watch dial becomes the reference
point for determining course bearings.
Note that the above explanation is only valid for
times when the
 angle is 45°.At 60°, use the
values lying above the red and green triangles; at
30°, use the values lying below the two triangles.
Using the rotating bezel (2)
Most present-day yachts are capable of sailing at
45° to the wind.
To be in a position of being able to read the wind
shift after the start of a race,
make several runs before the
race matching your course as
close as possible to the red (or
green) bars on the left (or right)
upper portion of the watch face.
Using the rotating bezel (3)
By using the rotating bezel in the following way you
can determine the angle between the start/finish line
and the direction from which the wind is blowing.
The start/finish line is usually set at right angles to
the direction of the wind, but because the wind is
always shifting direction, it is a rare occasion when a
true 90° angle is met.
In this case, line up the white triangle at the 12
o’clock position on the watch with the direction from
which the wind is blowing. Sail from one end of the
start/finish line to the other, using the white lines
marked (at 3 or 9 o’clock) on the watch to site your
destination. If the course steered falls on the plus (+)
side of the white line, you are on a favourable heading
to start the race when you cross the start/finish line.
If the course steered falls to the
minus (–) side of the white line on
this watch, you know it is
favourable to cross the start/finish
line on a heading from the
opposite direction.
• Use any one or a combination of the three
methods described above to help you manoeuvre
your boat into and maintain the position you feel is
the most advantageous during a race.

9. Precautions
1) Resistance to water
Refer to the table for water-resistance performance
after checking the water-resistance characteristics
inscribed on the face and the back of the watch.
•Always set the crown in the normal position.
• While working with water and using as a water-
resistance sports watch, when the watch is dipped
in seawater or after a lot of sweat, please rinse it
well in fresh water and dry it well with a cloth.
• Leather belts have characteristics that may affect
durability after getting wet.
• Because there is always moisture inside the watch,
when the air temperature, is lower than inside the
watch, the surface of the glass may fog. If fog
remains temporarily there is no problem, but if it
doesn’t disappear after a long period of time
please consult the shop you purchased it from or a
shop dealing with Citizen Watch.
Check the chart to determine the water resistant
properties of this watch.
2) Avoid temperature extremes
Avoid leaving your watch in direct sunlight or in
extremely warm locations for long periods of time.
• This will cause malfunctioning and shorten the life
of the battery. Do not leave your watch for long
periods of time in extremely cold places.
• This may cause your watch to gain or lose time.
• Place your watch on your wrist to restore its original
accuracy should it begin to gain or lose time.
3) Avoid wet conditions
Do not operate the buttons when your watch is wet.
4) Avoid strong shock
This watch will withstand the bumps and jars
normally incurred while playing and during sports
activities. Avoid dropping your watch on the ground
or otherwise imparting severe shock to it.
5) Avoid strong magnetic fields
Keep your watch out of the immediate vicinity of
strong magnets. Generally, your watch is not
affected by magnetic fields from such household
appliances as television sets and stereo equipment.
6) Static Electricity
The integrated circuits used in the watch are sensitive
to static electricity. If exposed to intense static
electricity, the watches display may lose its accuracy.
7) Avoid harmful chemicals
Avoid wearing your watch in the presence of strong
chemicals, solvents and gases. If your watch comes
in contact with materials such as gasoline, benzine,
paint thinner, alcohol, spray cosmetics, nail polish,
nail polish remover, adhesives or paint, discolouration,
deterioration or damage to the case, band and other
components may occur.
8) Photosensitive eyeglasses
The watch digital display can become difficult to
read clearly when wearing glasses. This problem
can be corrected by turning your wrist slightly to
change the angle between the eye and watch
providing a clear view of the display.

9) Keep your watch clean
Wipe off any water and moisture that adheres to
the case, glass and band with a soft, clean cloth.
Any dirt left on the case or band may cause skin
rash. A watchband will easily become soiled with
dust and perspiration because it is in direct contact
with the skin. Even a stainless or goldplated band
may begin to corrode if it has not been cleaned for
a long period of time. Mesh bands, because the
meshes are very fine, will lose their particular
“flexibility” if they are left soiled for a long time. Metal
watchbands are usually washed with a brush in
mild, soapy water and wiped with a soft, absorbent
cloth to make sure all water is removed. Pay
attention to prevent any water from getting inside
your watch when the band is washed.
10) Periodic inspection
Getting your watch checked once every year or two
is recommended to ensure long use and trouble-
free operation.
11) Watch bands
Metal bands: Metal watch bands can be cleaned
with a toothbrush, soap and water.
Leather bands: Wipe off the front side of the band
with a soft dry cloth, and remove stains on the back
side of the band with a cloth moistened with alcohol.
Plastic or rubber bands: Wash in water. (Avoid using
solvents as they may cause the band to dissolve.)
12) Be sure to keep the batteries out of reach of
infants and small children. Should accidental
ingestion occur, consult a doctor at once.
10.SPECIFICATIONS
• Caliber No.: C440/C450
• Type: Analog/digital combination display quartz
watch
• Accuracy:± 20 seconds/month at 5-35°C (41-
95°F)
• Operating temperature range: 0-55°C (32-131°)
• Display functions
Time: Hours, Minutes, Seconds, Summertime
Calendar: Month, Date, Day
Alarm: Hours, Minutes (Alarm-1/Alarm-2
(Cal.C440 only))
Chronograph: 24-hour measurement (in 1/100 sec.),
Split time measurement
Race Timer: 15 different lengths of setting
(Cal.C440 only)
Timer: 60-minute countdown (in 1 minute)
• Additional function: EL (electroluminescence)
panel
• Battery: 280-44 (SR927W)
• Battery life: Approx. 2 years based on assumed use
of Alarm-1 and Alarm-2 buzzer each 20 sec./day,
Race Timer buzzer 5 sec./week, Timer buzzer
5 secs./week and EL light 3 secs./day.
This watch will keep specified accuracy for about
2 years when used under normal conditions after a
new battery has been installed. However, battery
life will vary depending on frequency of use of
alarm, chronograph and EL light.
* These specifications are subject to change for
product improvement without prior notice.