Casio 3356 User Manual
MA0406-EA
Modes and Display Screens
Operation Guide 3311/3356
Each press of the
CC
C button sounds a confirmation tone and cycles through available modes in the sequence shown below.
CC
Timekeeping Mode
❚
Changing Display Screen Contents
Each press of the button cycles digital display contents in the sequence
shown below.
Day of the Week Day Day of the Week
•
For more information, see “To configure digital settings”.
Current Time Screen Seconds Screen
PM indicator
(no indicator for AM)
Days of the Week
SU: Sunday MO: Monday TU: Tuesday WE: Wednesday
TH: Thursday FR: Friday SA: Saturday
Button
Button
Hour Hand
Minute Hand
(Light)
Button
Button
Second Hand
Digital Display
Power Supply
The power supply of this watch uses a solar cell to generate
electrical power, which is stored by a rechargeable battery. Using
or storing the watch where it is not regularly exposed to light, or
allowing it to be blocked from light by your sleeve for long periods
as you are wearing it can cause the power of the rechargeable
battery to run down. To ensure stable operation, be sure to allow
the watch to be exposed to light as much as possible when you
are wearing or storing it.
Important!
Note that all data in memory and all settings are cleared whenever
you allow the level of the rechargeable battery to drop to Level 4.
❚
Checking the Battery Level
Use the Battery Level Screen to check the current level of the
watch’s rechargeable battery.
• In the Timekeeping Mode, press the C button once to change to
the Battery Level Screen.
Battery Level ScreenTimekeeping Mode
Example: Day of the Week
Or
Calendar Screen
Or
Receive Icon
(Indicates time calibration
signal reception was
successful.)
Level 1
Level 2
Level 3
Level 4
• Exposing the watch to direct sunlight or other strong light may
cause the battery level indicator to momentarily indicate a level
that is higher than the actual battery level. Because of this, you
should wait for a short while after charging to check the battery
level indicator.
• Alarms and the hourly time signal cannot be turned on, and signal
reception is disabled while the battery is at Level 3.
• Signal reception will become enabled again when the battery is
recharged up to Level 2.
• Even after the battery drops to Level 4, watch operation will
resume as soon as charging starts. However, you should wait until
the digital display operation resumes before setting the time and
date.
SecondsHour Minutes
Normal operation enabled.
Normal operation enabled.
Signal reception, tones (alarms,
hourly time signal), display
illumination, digital display, and
analog timekeeping disabled.
All functions, including
timekeeping, disabled.
• The display will automatically revert to the Timekeeping screen if you leave the Battery Level, Alarm, or Hand Setting screen displayed
without performing any operation for about two or three minutes.
Alarm ModeWorld Time ModeBattery Level Screen
City Code
Or
Alarm
Number
2-second
interval
Stopwatch ModeHand Setting Mode
❚
Start charging at Level 3!
Battery Level 3 indicates that remaining battery power is very low.
Be sure to expose the watch to light for recharging as soon as
possible after the Level 3 indicator starts to flash.
❚
Flashing Recover Indicator
If you use the light or alarms a number of times during a short
period, a recover (R) indicator flashes on the display and the
following operations become disabled as battery power recovers.
• Display illumination
• Alarm and hourly time signal
• Analog timekeeping
• Time calibration signal reception
Normal operation will return after the
battery recovers.
Recover (R) Indicator
Mode Indicator
❚
Charging Precautions
Avoid charging the watch in the following locations, and anywhere
else where the watch may become very hot.
• On the dashboard of an automobile parked in the sun
• Very close to an incandescent light source or other sources of
heat
• In a location exposed to direct sunlight for long periods
Note that the display panel may become black under very high
temperatures. This is temporary, and the display will appear
normal again at lower temperatures.
Depending on the light source you are using, the
case of the watch may become quite hot during
charging. Take care to guard against burn injury after
charging.
❚
To charge the battery
Point the solar panel (face) of the watch at a light source.
• Remember that even a partial blockage of the solar cell reduces
charging efficiency.
Example: Positioning the watch
• The illustration shows the resin band model.
Solar Cell
Mode
Indicator
1
Operation Guide 3311/3356
❚
Charging Guide
Starting from a full charge, the watch
should be able to continue operating
for about five months without further
charging under the conditions
described below.
Daily Use (All time values are
approximate.)
• Display Illumination:
1.5 seconds
• Alarms: 10 seconds
• Signal reception: 5 times
Making sure the watch is regularly
exposed to light ensures stable
operation.
• Charge Times Required to Advance to a Higher Level
Exposure Level
(Brightness)
Outdoor Sunlight
(50,000 lux)
Sunlight Through a
Window (10,000 lux)
Daylight Through a
Window on an Overcast
Day (5,000 lux)
Indoor Fluorescent
Lighting (500 lux)
• Note that the above charging times are for reference only. Actual
charging time depends on a variety of environmental factors.
Level 4
Required Daily Charging Time
•
The following is the daily
amount of charging required
each day to support the
operations under “Daily Use”.
Exposure Level
(Brightness)
Outdoor Sunlight
(50,000 lux)
Sunlight Through
a Window
(10,000 lux)
Daylight Through a
Window on an Overcast
Day (5,000 lux)
Indoor
Fluorescent
Lighting (500 lux)
Approximate Exposure Time
\
Level 3
\
Level 2
\
1 hour
4 hours
8 hours
76 hours
– – – – – –
Approximate
Exposure
Time
5 minutes
24 minutes
48 minutes
8 hours
Level 1
5 hours10 hours
22 hours48 hours
46 hours99 hours
Display Illumination
Pressing the B button in any mode illuminates the digital display
for easy reading.
❚
To specify the illumination duration
1. In the Timekeeping Mode
hold down the
for about two seconds.
• This will display the
transmitter selection mode
setting screen and cause the
second hand to move to the
12 o’clock position.
AA
A button
AA
Timekeeping Mode
Power Saving
The Power Saving feature of the watch is turned on at the factory.
• Power Saving causes the watch to automatically enter a sleep state and save power whenever the watch is left in the dark.
• Note that the watch may also enter the sleep state if the watch is blocked from light by your sleeve.
❚
How the sleep state works
Display sleep state
The display sleep state is triggered whenever the watch is left in
the dark for three or four days.
• The display sleep state causes the display to go blank, except for a
flashing Power Saving indicator. Alarms and the hourly time signal
continue to operate normally while the watch is in the display sleep
state. Even when the watch is in the display sleep state, digitalanalog time coordination and auto signal receive are both performed.
Function sleep state
The function sleep state is triggered whenever the watch is left in
the dark for four days.
• Alarms and the hourly time signal are also disabled while the
watch is in the function sleep state. In the function sleep state,
analog timekeeping is disabled, and auto signal receive is not
performed.
• Digital timekeeping functions continue to operate normally in the
function sleep state.
Power Saving
Indicator
3. Press the
• Each press of the B button
BB
B button to
BB
select the display
illumination duration you
want.
toggles the display
illumination duration between
1.5 seconds and 2.5 seconds.
An indicator on the display
shows which setting is
currently selected.
1.5 seconds
2.5 seconds
(Toggle)
❚
To recover from the sleep state
Move the watch to a brightly lit location or press any button.
• It can take up to two seconds before display figures re-appear
after you place the watch in a well-lit area.
❚
To turn Power Saving on and off
Use the procedure under “To configure digital settings” to turn
Power Saving on or off.
Leaving the watch in a drawer or anywhere else it is dark can
cause Power Saving to trigger in order to conserve battery
power.
You can specify 1.5 seconds or 2.5 seconds as the duration of
display illumination.
2. Press the
• This causes the seconds
AA
A button once
AA
and then press the
button.
count to flash on the display.
4. When the setting is the
AT (Auto Switching)
CC
C
CC
way you want, press the
AA
A button.
AA
• This will exit the setting
screen and return to the
Timekeeping Mode screen.
Also, the second hand will
move automatically to the
current second, as kept by
digital timekeeping.
• The display also will exit the
setting screen automatically if
you do not perform any
operation for about two or
three minutes.
2
Operation Guide 3311/3356
How a Radio-controlled Watch Works
What is a radio-controlled watch?
Your radio-controlled watch is designed to receive a time
calibration signal that contains standard time data, and adjust its
current time setting accordingly.
Signal is received
Transmitter
Cesium
atomic clock
After the watch receives the Standard Time signal, it performs
internal calculations to determine the current time. Because of
this, there may be an error of up to one second in the
displayed time.
Long-wave time
calibration signal
Signal data
Watch
Time data
Internally
using built-in antenna.
Watch decodes
received data and
converts it to time
data.
Decode
Time is adjusted
according to time
data.
Location
Reception is difficult and may even be impossible in the locations
described below. Avoid such locations when performing signal
reception.
• You should think of your watch operating like a radio or TV when it
is receiving the calibration signal.
Among or near buildings
Inside a vehicle
(automobile, train, plane, etc.)
In a location where there is
radio interference
(construction site, airport, etc.)
If you are experiencing problems with reception, move away
from the types of locations described above to a location with
better reception, and try again.
Near high-voltage lines
Next to a household
appliance or office equipment
(TV, speaker, fax, computer,
cell phone, etc.)
Near mountains
Calibration Signal
• The Japanese calibration signal (Call Sign: JJY) is maintained by
the National Institute of Information and Communications
Technology (NICT). It is a long wave signal transmitted 24 hours a
day from the Mt. Otakadoya transmitter (40kHz) located in
Tamura-gun, Fukushima Prefecture, and from the Mt. Hagane
transmitter (60kHz) located on the border between Saga
Prefecture and Fukuoka Prefecture.
• The U.S. calibration signal (Call Sign: WWVB) is transmitted by
the National Institute of Standards and technology from Fort
Collins, Colorado.
Note that transmission of the standard wave may be
interrupted occasionally due to maintenance, lightening, etc.
Receiving the Calibration Signal
There are two methods you can use to receive the time calibration
signal.
• Auto receive (Reception is performed automatically at
midnight, 1:00, 2:00, 3:00 and 4:00 each morning.)
•
Manual receive (You initiate reception using a button operation.)
• If reception is not successful for any of the normal auto receive
operations shown above, auto receive is performed one more
time at 5:00 a.m.
• The watch is set up for auto receive at the factory, so all you need to
do is to place it in a location that allows good reception each night.
❚
To position the watch for optimum reception
Remove the watch from your wrist and place it somewhere so its
top (12 o’clock side, where the antenna is located) is facing
approximately in the direction of the signal transmitter. Keep the
watch away from metal objects.
Resin band
Metal band
• Orienting the watch so it is sideways to the transmitter makes it
more difficult to receive the signal.
• Do not move the watch while it is receiving the calibration signal.
Reception Range
This watch is designed to receive the standard time calibration signal of Japan (JJY) or of the United States (WWVB). The signal that is
received depends on the current Home City setting.
• For information about selecting a Home City, see “Selecting Your Home City”. For information about city codes, see the “World Time City
Code List”.
Home City
TYO
LAX, DEN, CHI, NYC
Japan Transmitter
Either the Mt. Otakadoya signal (40kHz) or the Mt. Hagane signal (60kHz)
Fort Collins, Colorado signal
1000km
Locations
Mt. Otakadoya
Mt. Hagane
(60kHz)
• Under optimum conditions, the calibration signal should be
receivable up to 1,000 kilometers from the transmitter. Note
that the wave is relatively weak at distances greater than
500km, so reception may be poor at long distances.
• Geographic contours, nearby buildings, seasonal conditions, the time of day, can even make reception impossible even when you are within
range of the transmitter.
• Best reception is possible late at night.
❚
Time Required for Reception
A calibration signal receive operation takes anywhere from about
two to six minutes.
• Note that when “AT” (Auto Select) is specified as the transmitter
selection mode, signal reception can take up to 12 minutes.
• See “Configuring Transmitter Selection Mode Settings” for more
information.
❚
To perform manual receive
In the Timekeeping Mode, hold
down the
two seconds.
• The watch will beep and
reception will start. An indicator
flashes on the display and the
receive icon changes to while
signal reception is in progress.
❚
To interrupt reception
Press the
• All other buttons besides D are disabled during signal reception.
When reception is successful
The watch terminates reception and adjusts the current time. Next it beeps
and then displays the date and time that the adjustment was performed.
•
At this time, the second hand will adjust automatically to the digital time.
• After the date and time of the adjustment appear on the display,
press the D button to return to the Timekeeping Mode. The
watch will also return to the Timekeeping Mode automatically if
you do not perform any operation for about one or two minutes.
Reception Error (ERR Indicator)
The watch does not adjust its current time setting, and displays
“ERR” when signal reception is unsuccessful for some reason.
• The watch will return to the Timekeeping Mode automatically if
you do not perform any operation for about one or two minutes.
500km
DD
D button for about
DD
DD
D button.
DD
500km
1000km
(40kHz)
• Under optimum conditions, the calibration signal should be
❚
The receive icon cycles from “Unstable”
through “Stable” as shown below while
reception is in progress. How far it cycles
depends on the signal strength. Keep
the watch in a location where reception
is stable while reception is in progress.
• Even under optimum reception conditions, it can take about 10
❚
Second Hand
The second hand moves to the 12 o’clock position when signal
reception starts.
• It resumes normal movement after reception is complete.
• Pressing a button to stop reception causes the second hand to
Hour and Minute Hands
These hands continue to operate normally.
Transmitter
U.S. Transmitter
Location
3000km
1000km
Fort Collins
receivable up to 3,000 kilometers from the transmitter. Note
that the wave is relatively weak at distances greater than
1,000km, so reception may be poor at long distances.
Receive Icon
Unstable Stable
seconds for reception to stabilize.
• Use the receive icon to check reception status and to
determine the best location for signal reception.
• Note that weather, the time of day, surroundings, and other
factors can all affect reception.
Receive Icon
Analog Hands and Signal Reception
move to the seconds count as kept by digital timekeeping, and
resume normal operation.
Note that the second hand does not move while signal
reception is in progress.
3
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