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MO0804-EA
Operation Guide 3353 3354 5053

Getting Acquainted

Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to carefully read this manual and keep it on hand for later reference
when necessary.
Keep the watch exposed to bright light
Bright Light
Solar cell
• The watch continues to operate, even when it is not exposed to light. Leaving the
watch in the dark can cause the battery to run down, which will result in some watch
functions to be disabled. If the battery goes dead, you will have to re-configure watch
settings after recharging. To ensure normal watch operation, be sure to keep it
exposed to light as much as possible.
Battery charges in the light.
Bright Light
Solar cell
(Converts light to
electrical power.)
LEVEL 1
LEVEL 2
LEVEL 3
Charge
LEVEL 4
Rechargeable battery
General Guide
• Press C to change from mode to mode.
• In any mode, press B to illuminate the display.

Radio-controlled Atomic Timekeeping

Hour hand
Minute hand
Day
Day of week
Second hand
Current Time Setting
This watch automatically adjusts its time setting in accordance with a time calibration
signal. You can also perform a manual procedure to set the time and date, when
necessary.
• The first thing you should do after purchasing this watch is to set your Home City,
which is the city where you will normally use the watch. For more information, see
"To set your Home City" below.
• When using the watch in an area that is outside of the range of the transmitters in
Anthorn and Mainflingen, you need to manually adjust the time as required. See
"Timekeeping" for information about manual settings.
• The analog time of this watch is synchronized with the digital time. Because of this,
the analog time setting is automatically adjusted whenever you change the digital
setting. See "Analog Timekeeping" for more information.
To set your Home City
Transmitter indicator
City code
The electricity generated by the solar cell of the watch is
stored by a built-in battery. Leaving or using the watch where
it is not exposed to light causes the battery to run down.
Make sure the watch is exposed to light as much as possible.
• When you are not wearing the watch on your wrist,
position the face so it is pointed at a source of bright light.
• You should try to keep the watch outside of your sleeve
as much as possible. Charging is reduced significantly if
the face is only partially covered.
Battery discharges in the dark.
Electrical
energy
All
LEVEL 1
functions
LEVEL 2
enabled
Dis-
LEVEL 3
charge
LEVEL 4
Press C.
Hand Setting Mode
This watch receives a time calibration signal and updates
its time setting accordingly. The time calibration signal
includes both Standard Time and Daylight Saving Time
(summer time) data.
• This watch is designed to pick up the time calibration
signal transmitted from Anthorn, England and the signal
from Mainflingen, Germany.
1. In the Timekeeping Mode, hold down A until the
transmitter indicator (
,
,
M SF
) starts to flash,
AT
DCF
which indicates the setting screen.
• If the displayed transmitter indicator shows something
, use D to display
other than
AT
AT
before
advancing to the next step.
• The second hand will move at high speed to the 12
o'clock position, where it will stop.
2. Press C to display the city code setting screen.
3. Use D (east) and B (west) to select the city code you
want to use as your Home City.
• The following are the city codes for major cities in the
Western Europe time zones.
LON
: London
PAR
and
BER
: Paris, Berlin, Milan, Rome,
Amsterdam, Hamburg, Frankfurt,
Vienna, Barcelona, Madrid
ATH
: Athens
• The actual level at which some functions are disabled depends on the watch model.
• Frequent display illumination can run down the battery quickly and require charging.
The following guidelines give an idea of the charging time required to recover from a
single illumination operation.
Approximately 5 minutes exposure to bright sunlight coming in through a window
Approximately 50 minutes exposure to indoor fluorescent lighting
• Be sure to read "Power Supply" for important information you need to know
when exposing the watch to bright light.
If the display of the watch is blank...
If the display of the watch is blank, it means that the watch's Power Saving function
has turned off the display to conserve power.
• See "Power Saving Function" for more information.
About This Manual
Some or all
functions
disabled
Battery Level Indicator
or
4. Press A twice to exit the setting screen.
• The first press of A displays the 12/24-hour setting screen. Pressing A again exits
the setting screen.
• The second hand will advance at high speed to the correct position in accordance
with seconds count of the digital time, and resume normal movement from there.
• Normally, your watch should show the correct time as soon as you select your Home
City Code. If it does not, it should adjust automatically after the next auto receive (in
the middle of the night). You can also perform manual receive or you can set the time
manually.
• If you are in an area that does not use Daylight Saving Time (summer time), turn off
the DST setting.
• See "Transmitters" for details about the transmitter indicator.
To display the digital time and last signal screen
• In the Timekeeping Mode, press A to cycle through the digital time screens as
shown below.
• In the Timekeeping Mode, press D to display the last signal screen. The last signal
screen shows the date and time of the last successful time calibration signal
reception.
Date Screen
Day
L
Day of week
Press D.
Reception date
Last Signal Screen

Time Calibration Signal Reception

There are two different methods you can use to receive the time calibration signal:
auto receive and manual receive.
• Auto Receive
With auto receive, the watch automatically picks up the time calibration signal five
times a day at 0:00 a.m., 1:00 a.m., 2:00 a.m., 3:00 a.m., and 4:00 a.m. For more
information, see "About Auto Receive".
• Manual Receive
Manual receive lets you start time calibration signal reception with the press of a
button. For more information, see "To perform manual receive".
• Button operations are indicated using the letters shown
in the illustration.
• Each section of this manual provides you with the
information you need to perform operations in each
mode. Further details and technical information can be
found in the "Reference" section.
Alarm Mode
Receiving
Indicator and
Press A.
Seconds Count
A
Current Time
A
Screen
2 seconds
Reception Time
2 seconds
2 seconds
Receiving
indicator
Seconds
Hour :
Minutes
PM indicator
1

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Do you have a question about the 3353 and is the answer not in the manual?

Questions and answers

Brian Wolfe
January 26, 2025

i have had this watch for 35 years, but i have left in the dark to long, it shows date and times but will not adjust to tdays time in digetal or fingers

1 comments:
Mr. Anderson
February 10, 2025

To reset the time on a Casio watch with module number 3353, follow these steps:

1. Enter Timekeeping Mode: Ensure the watch is in normal timekeeping mode, where the digital display shows the day and date.
2. Hold Button A: Press and hold button A until the radio reception icon and the current seconds count briefly appear. After a few seconds, the second hand will move at high speed to the 12 o’clock position.
3. Select the Desired Time Zone (Home City): Follow the watch’s procedure to adjust the home city to the correct time zone.
4. Confirm and Exit: Once the correct time zone is set, exit the setting mode to allow the watch to adjust to the correct time.

If the watch uses radio signal reception, it may take up to 14 minutes to synchronize the correct time automatically. If manual adjustment is needed, refer to the specific watch settings.

This answer is automatically generated

Ivan Gábor
July 20, 2025

U uvedenych hodinek mi jdou ručičky pozadu asi o 5 minut. Při nastavení se aktualizuje pouze digitální čas. Můžete mi nějak pomoct ?

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Summary of Contents for Casio 3353

  • Page 1 Operation Guide 3353 3354 5053 Getting Acquainted Congratulations upon your selection of this CASIO watch. To get the most out of your • The actual level at which some functions are disabled depends on the watch model. purchase, be sure to carefully read this manual and keep it on hand for later reference •...
  • Page 2: Signal Reception Troubleshooting

    Operation Guide 3353 3354 5053 • Even in an area where signal strength is strong, it takes about 10 seconds for signal Important! • When getting ready to receive the time calibration signal, position the watch as reception to stabilize enough for the receiving indicator to indicate signal strength.
  • Page 3: Power Supply

    5. Press A to exit the setting screen. problems getting the special rechargeable battery to charge fully, contact your dealer or CASIO distributor about having it replaced. Alarm Operation • Never try to remove or replace the watch’s special battery yourself. Use of the wrong The alarm sounds in all modes at the preset time for about 10 seconds, or until you type of battery can damage the watch.
  • Page 4: Timekeeping

    Operation Guide 3353 3354 5053 • The flashing charge indicator ( ) at Level 3 tells you that battery power is very low, Setting the Digital Time and Date Manually and that exposure to bright light for charging is required as soon as possible.
  • Page 5 • Move the watch to a well-lit area. • Press any button. 3353 • To find out the module number of your watch, look at its back cover. The Module number (3353, 3354, or 5053) is 3354 engraved inside the box on the back cover. 5053...
  • Page 6 Operation Guide 3353 3354 5053 To select a transmitter 1. In the Timekeeping Mode, hold down A until the transmitter indicator starts to flash, which indicates the setting screen. • The second hand will move at high speed to the 12 o’clock position, where it will stop.

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