Casio 4305 manual

Casio 4305
7.5 · 1
PDF manual
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English
manualCasio 4305

Operation Guide 4304 4305

3
3. Select the setting you want to change, and then use A to change it as shown
below.
Screen To do this:
Cycle through time zones
To ggle between Daylight Saving Time (
), Standard
Time ( ), or Auto DST ( )
Reset the seconds to
Change the hour
Change the minutes
Change the year
Change the month
Do this:
Press A.
Press A.
Press A.
Press A.
Press A.
Press A.
Press A.
Change the day
Cycle through day of the week languages
: English
: Spanish
: French
: German
: Italian
To ggle signal auto receive on (
) and off ( )
(This setting is possible only for time zones that support
time calibration signal reception.)
Press A.
Press A.
Press A.
When setting the day, the watch automatically will skip days (30 and 31) that are
not included in the currently selected month. If you can’t select 30 or 31 when you
want to, check to make sure that the proper month is selected.
4. Press B to exit the setting mode.
This will cause the hands to move to the current time, and resume normal movement.
Note
For more information, see “Daylight Saving Time (DST)” below.
The auto receive setting is used for time calibration signal reception only. See “About
Auto Receive” for details.
Daylight Saving Time (DST)
Daylight Saving Time (summer time) advances the time setting by one hour from
Standard Time. Remember that not all countries or even local areas use Daylight
Saving Time.
The time calibration signals transmitted from Mainflingen (Germany), Rugby
(England), or Fort Collins (the United States) include both Standard Time and DST
data. When the Auto DST setting is turned on, the watch switches between Standard
Time and DST (summer time) automatically in accordance with the signals.
The time calibration signals transmitted from Fukushima and Fukuoka/Saga (Japan)
do not include summer time data.
The default DST setting is Auto DST (
At) whenever you select 0, +1, +2, E (GMT
–5), C (GMT–6), M (GMT–7), or P (GMT–8) as your Home City code.
If you experience problems receiving the time calibration signal in your area, it is
probably best to switch between Standard Time and Daylight Saving Time (summer
time) manually.
To change the Daylight Saving Time (summer time) setting
1. In the Timekeeping Mode, hold down B until the currently selected Time Zone
appears on the display. This is the setting mode.
2. Press B and the DST setting screen appears.
3. Use A to cycle through the DST settings in the sequence shown below.
4. When the setting you want is selected, press B nine times to exit the setting
screen.
Auto DST (
At
) DST off (
OF
)DST on (
On
)

Reference

This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.
Auto Return Features
If you leave the watch in the Home Position Adjustment Mode for about three
minutes without performing any operation, it returns to the Timekeeping Mode
automatically.
If you do not perform any operation for about three minutes while a setting mode is
selected, the watch will exit the setting mode automatically.
Button Operation Timing
This watch is designed so the function of a button is executed when you release the
button, not when you press it.
Scrolling
The A button is used to change the hand setting in various setting modes. In most
cases, holding down the A button will start high-speed movement of the applicable
hand(s).
High-speed movement of the hands will continue until it completes a 12-hour cycle,
or until you press A button to stop it.
Radio-controlled Timekeeping Precautions
Strong electrostatic charge can result in the wrong time being set.
Even when the watch is within the reception range of the transmitter, signal
reception will be impossible if the signal is blocked by mountains or other geological
formations between the watch and signal source.
Signal reception is affected by weather, atmospheric conditions, and seasonal
changes.
The time calibration signal bounces off the ionosphere. Because of this, such factors
as changes in the reflectivity of the ionosphere, as well as movement of the
ionosphere to higher altitudes due to seasonal atmospheric changes or the time of
day may change the reception range of the signal and make reception temporarily
impossible.
Even if the time calibration signal is received properly, certain conditions can cause
the time setting to be off by up to one second.
The current time setting in accordance with the time calibration signal takes priority
over any time settings you make manually.
The watch is designed to update the date and day of the week automatically for the
period January 1, 2001 to December 31, 2098. Setting of the date by the time
calibration signal cannot be performed starting from January 1, 2099.
This watch can receive signals that differentiate between leap years and non-leap
years.
If you are in an area where proper time calibration signal reception is impossible, the
watch keeps time within ±20 seconds a month at normal temperature.
If you have problems with proper time calibration signal reception or if the time
setting is wrong after signal reception, check your Home Time Zone (GMT
differential) setting.
The following are the initial factory defaults for this setting.
Module 4304: GMT +1.0
Module 4305: GMT 0.0
To find out the module number of your watch, look at its
back cover. The Module number (4304 or 4305) is
engraved inside the box on the back cover.
Transmitters
The time calibration signal received by this watch depends on the currently
selected home time zone.
When a U.S. time zone is selected, the watch receives the time calibration signal
transmitted from the United States (Fort Collins).
When a Japanese time zone is selected, the watch receives the time calibration
signal transmitted from the Japan (Fukushima and Fukuoka/Saga).
When a European time zone is selected, the watch receives the time calibration
signals transmitted from Germany (Mainflingen) and England (Rugby).
The following tables show the reception priority for the European signals.
4304
Module 4304
Module 4305
In this case:
The first signal search operation after
factory default settings are in effect.
The first signal search operation after
the Home Time Zone has been
changed.
The watch does this:
1. Checks the Mainflingen signal first.
2. If the Mainflingen signal cannot be
received, checks the Rugby signal.
1. Checks the Rugby signal first.
2. If the Rugby signal cannot be received,
checks the Mainflingen signal.
In this case:
The first signal search operation after
factory default settings are in effect.
The first signal search operation after
the Home Time Zone has been
changed.
The watch does this:
1. Checks the Rugby signal first.
2. If the Rugby signal cannot be received,
checks the Mainflingen signal.
1. Checks the Rugby signal first.
2. If the Rugby signal cannot be received,
checks the Mainflingen signal.
Timekeeping
The year can be set in the range of 2001 to 2098.
The watch’s built-in full automatic calendar makes allowances for different month
lengths and leap years. Once you set the date, there should be no reason to change
it except after you have the watch’s battery replaced.
The current time for all time zones in the Timekeeping Mode is calculated in
accordance with the Greenwich Mean Time (GMT) differential of each zone, based
on your Home Time Zone time setting.
GMT differential is calculated by this watch based on Universal Time Coordinated
(UTC*) data.
*UTC is the world-wide scientific standard of timekeeping. It is based upon
carefully maintained atomic (cesium) clocks that keep time accurately to within
microseconds. Leap seconds are added or subtracted as necessary to keep UTC
in sync with the Earth’s rotation. The reference point for UTC is Greenwich,
England.
Display GMT Major cities in same time zone
Indicator
*
1
Differential
(
Letters in parentheses are city codes.*
1
)

Time Zone Table

–11.0
–10.0
–09.0
–08.0
–07.0
–06.0
–05.0
–04.0
–03.0
–02.0
–01.0
+00.0
+01.0
Pago Pago (PPG)
Honolulu (HNL), Papeete
Anchorage (ANC), Nome
Los Angeles (LAX), San Francisco, Las Vegas, Vancouver,
Seattle/Tacoma, Dawson City
Denver (DEN), El Paso, Edmonton
Chicago (CHI), Houston, Dallas/Fort Worth,
New Orleans, Mexico City, Winnipeg
New York (NYC), Montreal, Detroit, Miami, Boston,
Panama City, Havana, Lima, Bogota
Caracas (CCS), La Paz, Santiago, Port Of Spain
Rio De Janeiro (RIO), Sao Paulo, Buenos Aires, Brasilia, Montevideo
Praia (RAI)
London (LON), Dublin, Lisbon, Casablanca, Dakar, Abidjan
Paris (PAR), Milan, Rome, Madrid, Amsterdam, Algiers, Hamburg,
Berlin (BER), Frankfurt, Vienna, Stockholm
+02.0
+03.0
+04.0
+05.0
+06.0
+07.0
+08.0
+09.0
+10.0
+11.0
+12.0
Cairo (CAI), Jerusalem (JRS), Helsinki, Istanbul, Beirut, Damascus,
Cape Town, Athens
Jeddah (JED), Kuwait, Riyadh, Aden, Addis Ababa, Nairobi, Moscow
Dubai (DXB), Abu Dhabi, Muscat
Karachi (KHI), Male
Dhaka (DAC), Colombo
Bangkok (BKK), Jakarta, Phnom Penh, Hanoi, Vientiane
Hong Kong (HKG), Singapore, Kuala Lumpur, Beijing, Taipei, Manila,
Perth, Ulaanbaatar
Tokyo (TYO), Seoul, Pyongyang
Sydney (SYD), Melbourne, Guam, Rabaul
Noumea (NOU), Port Vila
Wellington (WLG), Christchurch, Nadi, Nauru Island
Based on data as of December 2004.
*
1
Display indicators and city codes are marked on the back cover of the watch.

Manual

View the manual for the Casio 4305 here, for free. This manual comes under the category watches and has been rated by 1 people with an average of a 7.5. This manual is available in the following languages: English. Do you have a question about the Casio 4305 or do you need help? Ask your question here

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Brian WellsMarch 16, 2024

Where is factory reset

Casio 4305 specifications

Below you will find the product specifications and the manual specifications of the Casio 4305.

The Casio 4305 is a wristwatch manufactured by Casio, a well-known brand in the watch industry. This timepiece combines functionality and style to meet the needs of its users. The watch is created with a durable build, ensuring its longevity and resistance to wear and tear. Featuring a digital display, the Casio 4305 provides accurate timekeeping. The display is clear and easy to read, making it convenient for users of all ages. The watch also offers additional features such as an alarm, stopwatch, and calendar, adding practicality to its design. With a water resistance of up to a certain depth, the Casio 4305 can withstand splashes and brief immersions in water. This feature protects the watch from water damage in everyday situations but may not be suitable for swimming or diving activities. The watch is powered by a reliable quartz movement, ensuring accurate timekeeping. Quartz movements are known for their precision and low maintenance requirements, making them a popular choice in many watches. The Casio 4305 is designed with a lightweight and comfortable strap, allowing for extended wear without discomfort. The strap is adjustable to fit various wrist sizes, providing a customized fit for every wearer. Overall, the Casio 4305 is a functional and reliable wristwatch that offers accurate timekeeping and additional features. Its durable construction and comfortable design make it suitable for everyday use.

General
BrandCasio
Model4305
Productwatch
LanguageEnglish
FiletypeUser manual (PDF)

Frequently Asked Questions

Can't find the answer to your question in the manual? You may find the answer to your question in the FAQs about the Casio 4305 below.

A battery in my watch has started to corrode. Is the device still safe to use?

The product can still be used safely after proper cleaning. Remove the battery with gloves and clean the battery compartment with a toothbrush and vinegar. After drying, new batteries can be inserted into the device.

How do I set the time on the Casio 4305 watch?

To set the time on the Casio 4305 watch, follow these steps: 1. In the Timekeeping Mode, hold down the B button for about five seconds. This will cause the second hand to move to 12 o'clock. 2. Press the B button to cycle through the settings. The sequence of settings is as follows: Auto Receive, Month, Day, Hour, Minutes, GMT Differential Value, DST (Daylight Saving Time), and Year. 3. Use the A button to change the desired setting. For example, to change the hour, press the A button when the Hour setting is displayed, and then use the A button to adjust the hour. 4. After adjusting each setting, press the B button to move to the next setting. 5. Once you have set the desired time and date, press the B button nine times to exit the setting screen. Note: If you become confused during the setting process, you can put the watch down and wait for about three minutes. The watch will automatically enter the Timekeeping Mode, indicated by the normal movement of the second hand. You can then start the manual setting procedure again if needed. Please note that these instructions are specific to the Casio 4305 watch and may differ for other models.

Why is the watch not receiving the time calibration signal?

The Casio 4305 watch may not be receiving the time calibration signal due to various factors. Here are some possible reasons: 1. Weather and Atmospheric Conditions: Signal reception can be affected by weather conditions, atmospheric changes, and seasonal variations. Changes in the reflectivity of the ionosphere or movement of the ionosphere to higher altitudes may temporarily disrupt signal reception. 2. Signal Range: The reception range of the time calibration signal can vary, and there may be areas where proper reception is impossible. The watch is designed to keep time within ±20 seconds a month in such cases. 3. Home Time Zone Setting: Ensure that the Home Time Zone (GMT differential) setting is correct. Incorrect settings may affect signal reception and time accuracy. 4. Transmitter Availability: The watch receives the time calibration signal from specific transmitters based on the selected home time zone. Check if the transmitter corresponding to your time zone is available and operational. 5. Interference: Radio interference from sources such as high-tension power lines, household appliances, or mobile phones can disrupt signal reception. If you are experiencing issues with time calibration signal reception or incorrect time settings, check the above factors and make necessary adjustments.

How do I switch between Standard Time and Daylight Saving Time on the watch?

To switch between Standard Time and Daylight Saving Time on the Casio 4305 watch, follow these steps: 1. In the Timekeeping Mode, hold down the B button until the currently selected Time Zone appears on the display. This enters the setting mode. 2. Press the B button, and the DST (Daylight Saving Time) setting screen will appear. 3. Use the A button to cycle through the DST settings. The available options are Auto DST (At), DST off (OF), and DST on (On). 4. When the desired DST setting is selected, press the B button nine times to exit the setting screen. Please note that the Auto DST setting automatically switches between Standard Time and Daylight Saving Time based on the time calibration signals received. If you experience difficulties receiving the time calibration signal in your area, it is recommended to switch between Standard Time and Daylight Saving Time manually. These steps should help you switch between Standard Time and Daylight Saving Time on your Casio 4305 watch.

Why is the watch not returning to the Timekeeping Mode automatically?

If the Casio 4305 watch is not returning to the Timekeeping Mode automatically, there could be a few possible reasons. Here are some steps to troubleshoot the issue: 1. Check for Inactivity: The watch is designed to automatically return to the Timekeeping Mode if no operation is performed for a certain period of time. Ensure that you have not performed any button operations during this time. 2. Verify Auto Return Setting: Confirm that the Auto Return feature is enabled. This feature automatically returns the watch to the Timekeeping Mode after a period of inactivity. To check the setting, go to the Timekeeping Mode and access the settings menu. Look for the Auto Return option and ensure it is turned on. 3. Check Battery Level: Low battery power can affect the watch's functionality. If the battery level is low, the watch may not be able to return to the Timekeeping Mode automatically. Consider replacing the battery if necessary. 4. Reset the Watch: If the above steps do not resolve the issue, try resetting the watch to its factory settings. This can be done by following the instructions in the manual for a factory reset. By following these steps, you can troubleshoot why the Casio 4305 watch is not returning to the Timekeeping Mode automatically.

How do I change the mode on the Casio 4305 watch?

To change the mode on the Casio 4305 watch, follow these steps: 1. Press the B button to enter the Timekeeping Mode. 2. Hold down the B button for about five seconds. This will cause the second hand to move to 12 o'clock, indicating that you are in the setting mode. 3. Press the B button to cycle through the different settings. The sequence of settings is as follows: Auto Receive, Month, Day, Hour, Minutes, GMT Differential Value, DST (Daylight Saving Time), and Year. 4. Use the A button to change the desired setting. For example, to change the hour, press the A button when the Hour setting is displayed, and then use the A button to adjust the hour. 5. After adjusting each setting, press the B button to move to the next setting. 6. Once you have finished making the desired changes, press the B button nine times to exit the setting mode. By following these steps, you can easily change the mode on your Casio 4305 watch.

Is the manual of the Casio 4305 available in English?

Yes, the manual of the Casio 4305 is available in English .

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