1
Expose the watch dial to light and charge the watch fully
before use. (See page 50)
• For optimum performance, expose the watch dial to
direct sunlight for several hours at least once a month.
Thank you for your purchase of this Citizen watch.
Before using the watch, please read this instruction manual carefully to ensure
correct use.
After reading the manual, store it in a safe place for future reference.
Special notice
Due to special technologies, with the exception of the band, this watch must be
repaired only at an Authorized CITIZEN Service Center.
All requests for repairs must be directed to
an Authorized CITIZEN Service Center
.
2
Contents
Features ......................................... 4
Safety precautions ...................... 6
Using your watch
—quick start guide ................... 12
Part names and their main
functions ..................................... 14
How to use the screw down crown and
screw down push button ................... 16
How to use the unidirectional rotating
bezel ..................................................... 18
Receiving the time signal to set
the time and calendar ............... 20
Before receiving the signal
(Reference position check) ............... 20
Radio controlled watch ..................... 22
Receiving range of the signal ............ 23
Placement for better reception ......... 24
Receiving the signal
............................ 26
Interrupting reception
of the signal ......................................... 29
Movement of the hands during signal
reception ............................................. 30
Checking signal reception ................ 32
Adjusting the time/
calendar manually .....................34
Perpetual calendar ............................. 37
Changing the daylight saving
time (DST) setting......................39
Setting to the local (travel) time
(time difference correction
function) ...................................... 40
3
Precautions ................................. 62
Water-resistance performance ......... 62
Handling the rechargeable cell ......... 64
Keep your watch clean ....................... 64
Caution about charging ..................... 65
To avoid malfunction ........................ 66
Maintenance ...............................68
Daily maintenance ............................. 68
Storage ................................................. 69
Luminous dials and hands
................. 69
Specifications ............................. 70
Functions list ..............................72
Using the watch during diving
—Dive mode...............................42
Using the dive mode .......................... 48
Charging your watch ................ 50
Charging your watch ......................... 50
When the watch reaches a low charge
state—insufficient charge warning
function ............................................... 51
Charging time ..................................... 52
Power save feature .................... 54
Troubleshooting ........................ 56
Adjusting the reference
position ....................................... 60
4
Features
Receives a time signal and adjusts the time
automatically when in Europe (see page 22)
• When you adjust the time and calender
in an area where you cannot receive the
signal, see pages 34 to 38.
Dive mode assures accurate
time indication while diving
(see page 42)
Perpetual calendar—no need
for date correction at the end of
each month (see page 37)
Solar-powered—no need for
battery replacement
5
To avoid hand misalignment by impacts
or magnetism
❏
Impact detection function: This function prevents
unwanted movement of the hour, minute and
second hands when the watch receives an impact.
❏
Hand correction function (hand reference
position auto-correction function): The
reference position of the hands is checked at
regular intervals, and if there is any misalignment,
the hour, minute and second hands are rapidly
corrected to maintain the correct time.
Time difference
correction function—
easy adjustment to
the local time overseas
(see page 40)
6
Safety precautions
Diving is a potentially dangerous sport. When using this watch for diving,
make sure you have a proper understanding of the procedures for handling
the watch as described in this manual and observe proper procedures.
Handling of this watch in a manner contrary to that described in this user’s
manual may prevent the watch from functioning properly.
THIS WATCH IS NOT INTENDED FOR USE AS A PRIMARY DIVE INSTRUMENT.
7
To avoid injury
• DO NOT wear the watch where the temperature becomes extremely high—such as
in a sauna. The watch may become hot and burn the skin.
• Be careful when engaged in strenuous exercise or work, to avoid injury to yourself
or others.
• Be particularly careful when holding a small child with your watch on.
• The case and band of the watch come into direct contact with the skin. Wearing
this watch may cause itching or rashes if you have sensitive skin or certain physical
conditions. If you think there is something wrong, take off the watch immediately
and consult your physician.
Possible causes of rashes include
• Allergy to certain metal or leather
• Rust, dirt or perspiration present on the watch’s body or band
• Build up of foreign matter in the band and case
8
Safety precautions
General diving precautions
• In the case of using this watch for diving, always make sure you receive the
proper diving training from a licensed instructor to acquire the experience and
skills required for safe diving.
• Make sure you have completely mastered the handling and operation of this
watch.
Even recreational diving can be potentially dangerous. Diving without the proper or
adequate training can lead to a fatal or serious accident.
THIS WATCH IS NOT INTENDED FOR USE AS A PRIMARY DIVE INSTRUMENT.
9
• Each diver must take responsibility for planning and executing his or her own
diving plan to ensure safe diving.
This watch is not equipped with a function that prevents decompression sickness.
In addition, this watch is also unable to check differences in physiological functions
of individual divers or differences in physical condition on that day.
Since the occurrence of decompression sickness is greatly affected by physical
condition, the degree of the risk of decompression sickness varies depending on
your physical condition on that day. It is recommended to avoid diving whenever
you are in poor physical condition such as when you are ill, fatigued, have not had
enough sleep or have a hangover.
Precautions relating to use of this watch
• This watch is not equipped with a function that indicates decompression diving.
Do not engage in decompression diving while using this watch.
10
Safety precautions
Precautions relating to use of this watch (continued)
• When using this watch for diving, always make sure to use the watch in
combination with other diving instruments (dive table, divers’ watch, residual
pressure gauge or water depth gauge).
Sudden atmospheric fluctuations and changes in water temperature may have an
effect on the display and performance of the watch. In addition, always make sure
to use the watch in combination with other diving instruments in case the watch
should happen to malfunction. This watch is not intended for use as a primary dive
instrument.
• Always make sure to check all functions of the watch before each dive to prevent
malfunctions and accidents caused by the use of improper settings.
In particular, make sure to check whether the watch is sufficiently charged and
that there are no insufficient charge warning (see page 51) on the display.
11
• The use of this watch for diving is limited to recreational diving (nondecompression diving) at a water temperature of 0˚C/32˚F to +50˚C/122˚F.
Do not use this watch for the following types of diving:
– Diving outside the above temperature range
– Decompression diving
– Saturation diving using helium gas
– Freshwater diving (this watch is calibrated for saltwater diving)
• Allow a sufficient margin during diving with respect to non-decompression
diving limit time.
• Do not engage in skin diving after scuba diving since this can have a serious
effect on your health.
This watch has no function to distinguish between scuba diving and skin diving.
12
Using your watch—quick start guide
Check your watch as follows before
using it:
Checking the power reserve
Charge the watch. (See page 50)
Second hand
Day of the
week hand
Date
When exposing your watch to the light after a period of darkness, the hands may
turn rapidly. That is indicating the watch is exiting power save feature. (See page
54) This is not a malfunction. Allow the watch to return to fully normal operation
before using for diving or other function. Wait until the rapid movement stops.
The second hand is moving at
1-second intervals.
The second hand is moving at
2-second intervals or has stopped.
Check the movement of the second
hand.
13
Checking the time and calendar
Start using the watch!
Adjust the time and calendar
using either of the two following
methods:
• On demand reception of the time
signal (see page 28)
• Manual correcting of the time and
calendar (see pages 34 to 38)
Time and calendar are correct.
Time and calendar are not correct.
Check the time and calendar.
• See page 34 to check the calendar.
WED
TUE
MON
SUN
SAT
FRI
THU
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Date
Hour hand
DIVE (dive mode
indication)
(see page 48)
Lower right button (A)
Part names and their main functions
The illustrations in this instruction manual may differ from the actual appearance of your
watch.
Day of the week
Signal reception
indication—RX/
NO/H/M/L
*
1
(see pages
30 and 33)
Upper right button
(B)
*
2
Crown*
2
Minute hand
Second hand
Day of the week/
dive mode hand
Rotating bezel (see
page 18)
Daylight saving time
indication
15
*1 Some models indicate the time signal reception status using the tip of the second
hand, and others use the tail.
Indicating with the tip of
the second hand
Indicating with the tail of
the second hand
*
2
There are two types of crowns and buttons: normal and screw down. Refer to page
16 to see how to use the screw down crown and button.
16
Part names and their main functions
7 How to use the screw down crown and screw down push button
Some models feature a screw down crown and screw down push button. Locking
the crown and button prevents accidental operation. Unlock them when you want to
operate the watch.
Button
Crown
17
Unlock Relock
Screw down
crown
Rotate the crown
counterclockwise
(left) until it
releases from the
case.
Push the crown in to
the case. With gentle
pressure towords the
case, rotate the crown
clockwise to secure it
to the case. Be sure to
tighten firmly.
Screw
down push
button
Rotate the
locking screw
counterclockwise
(left), and loosen
until it stops.
Rotate the locking
screw clockwise
(right), and tighten
firmly.
• Unlocking is not required when a standard crown and button are equipped.
18
Part names and their main functions
7 How to use the unidirectional rotating bezel
You can easily check the elapsed time or remaining time from or to a certain point of
time by rotating the bezel. It is useful for checking the diving duration.
<To determine the elapsed time>
Set the
mark to the current position
of the minute hand.
• You can see the elapsed time from that
point of time.
Ex.: 10 minutes elapsed after setting
Setting time
(8:40)
Elapsed time
(10 minutes)
19
<To determine the remaining time>
Set the mark to the scheduled time.
• You can see the remaining time until
the time scheduled.
Ex.: 10 minutes remaining to the
scheduled time
Current time (8:40)
Remaining time (10 minutes)
Scheduled time (8:50)
The unidirectional rotating bezel turns only counterclockwise or left) for safety
when diving.
20
Receiving the time signal to set the time and calendar
7 Before receiving the signal
(Reference position check)
Ensure the reference position is correct or not
before receiving the signal.
The correct reference position for the time and
calendar is “SUN (Sunday),” “12:00:00,” “1 (1st
day).” If the reference position is incorrect, the
watch will not display the time and calendar
correctly even after receiving the signal.
• The reference position may become incorrect
if the watch is exposed to strong magnetism,
static or shock. Adjust the reference position
(see page 60) if the time and calendar are not
displayed correctly after receiving the signal.
Correct reference position
• Day of the week hand points
to “SUN.”
• Hour, minute and second
hands point to “12:00.”
• Date window displays “1.”
21
<Check the reference position>
1. Pull the crown out to position 1.
The second hand indicates the current
setting for the time difference.
2. Press and hold the upper right
button (B) for five or more
seconds.
The current reference position is
indicated. (This process can take up to
7 minutes.)
3. Check the reference position.
• Go to step 3 on page 60 if the
reference position is incorrect.
4. Push the crown in to position 0
to finish the check.
All hands move to indicate the current
time.
B
Second hand
Crown
22
Receiving the time signal to set the time and calendar
7 Radio controlled watch
This watch receives the time signal from the signal station and automatically adjusts
the time and calendar. This watch also feature a function to show the reception result
(success/failure) and the condition of reception (reception level).
• The signal is normally broadcast continuously 24-hours a day, but may occasionally
be interrupted due to maintenance.
• Even when this watch receives the signal successfully, the time indication may be
off a little bit depending on the reception environment and internal processing.
• Without reception of the signal, the watch will continue to be accurate to within
±15 seconds per month.
• The time signal has no effect on the human body or medical equipment.
DCF77：
Mainflingen
station
23
7 Receiving range of the
signal
Frankfurt station broadcasts the
time signal in Europe. This watch
automatically receives the signal from
only this location.
• This watch can receive only the
German signal (DCF77), and
cannot receive those from any other
area.
Even in the receivable area
illustrated, the watch may not be
able to receive the time signal
depending on the weather, radio
wave conditions, or reception
environment (see page 25).
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