Casio 4379 Watch User Manual
Contents
1. Any case other than the above 1 Checks the last successfully received signal first 2 If the last successfully received signal cannot be received checks the other signal Module 4379 In this case The watch does this The first signal auto search operation 1 Checks the Rugby signal first after factory default settings are in effect 2 If the Rugby signal cannot be received or after the city code has been changed checks the Mainflingen signal Any case other than the above 1 Checks the last successfully received signal first 2 If the last successfully received signal cannot be received checks the other signal e To find out the module number of your watch look at its KED back cover The Module number 4378 or 4379 is engraved inside the box on the back cover Timekeeping e Resetting the seconds to 00 while the current count is in the range of 30 to 59 causes the minutes to be increased by 1 In the range of 00 to 29 the seconds are reset to 00 without changing the minutes e The day of the week is automatically displayed in accordance with the date year month and day settings e The year can be set in the range of 2000 to 2099 e 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 e The current time for all ci2. Lmtd or FY TF is selected as the Home City code e The default DST setting is Auto DST F4 whenever you select i phata or TH as your Home City code e 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 until the city code starts to flash which indicates the setting screen 2 Press to display the DST setting screen 3 Use to cycle through the DST settings in the sequence shown below DST off i 4 When the setting you want is selected press to exit the setting screen e The DST indicator appears on the display to indicate that Daylight Saving Time is turned on CASIO Operation Guide 4378 4379 Analog Timekeeping The analog time of this watch is synchronized with the digital time The analog time setting is adjusted automatically whenever you change the digital time Note e The hands for the analog timepiece move to adjust to a new setting whenever any of the following occurs When you change the digital time setting manually When the digital time setting is changed by time calibration signal reception When you change the Home City code and or DST setting e f the analog time does not match the digital time for any reason use the procedure described under To adjust the analog time
3. or Auto DST Fi iZH Toggle between 12 hour 12 H and Press Vibe FEU 24 hour E4 H timekeeping r Reset the seconds to 00 Press O Funun Anai 0 08 Change the hour or minutes Use and Change the year Use and mil Les _ 3r Change the month or day Use and a e See City Code Table for a complete list of available city codes 4 Press to exit the setting screen e The second hand will advance at high speed to the correct position in accordance with the digital time seconds count and resume normal movement from there e When you exit the setting screen the analog hands are adjusted automatically to match the digital time See Analog Timekeeping for more information Note e Auto DST Ff can be selected only while amp RAPE Lhd ort TH is selected as the Home City code For more information see Daylight po Time DST below 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 Rugby and Mainflingen includes 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 received time signal e Auto DST Fi can be selected only while BEEF FE RIFL
4. to match the analog setting to the digital setting e Whenever you need to adjust both the digital and the analog time settings manually make sure you adjust the digital setting first e Depending on how much the hands have to move in order to adjust to the digital time it may take some time before they stop moving To adjust the analog time 1 In the Timekeeping Mode press four times to enter the Hand Setting Mode 2 Hold down until H H starts to flash which indicates the setting screen e The second hand will move at high speed to the 12 o clock position where it will stop 3 If the second hand is not pointing precisely at 12 o clock at this time use to adjust its position e Each press of D causes the second hand to advance by one second 4 Press This will cause the time on the digital display to flash which indicates that adjustment of hour and minute hands is selected 5 Use and to adjust the analog setting as described below When you want to do this Perform this button operation Move the hand setting e Press O forward 10 seconds Move the hand setting back e Press 10 seconds Move the hand setting a short e Hold down O way forward at high speed e Release when the hands reach the setting you want Move the hand setting a e Hold down short way back at high speed e Release 8 when the hands reach the setting you want Move the hand setting along e While holding
5. are performed in the Timekeeping Mode which you can enter by pressing Date Screen Receiving indicator Day mmm Receivin g p Press Indicator and Y e a ool S Current Time 7 Hour Day of week Screen Minutes Press O PM indicator Reception date 2 seconds Last Signal Screen D 2 seconds Setting the Digital Time and Date Manually Make sure you select your Home City code before you change the current time and date settings World Time Mode times are all displayed in accordance with the Timekeeping Mode settings Because of this World Time Mode times will not be correct if you do not select the proper Home City code before setting the time and date in the Timekeeping Mode Reception Time 2 seconds To set the current digital time and date manually 1 In the Timekeeping Mode hold down until the city code starts to flash which indicates the setting screen e The second hand will move at high speed to the 12 o clock position where it will stop 2 Use to move the flashing in the sequence shown below to select other alee 12 24 Hour 3 When the setting you want to change is flashing use and or to change it as described below City code Screen To do this Do this L OH Change the city code Use east and west See ee OF Toggle between Daylight Saving Press O i Time F Standard Time EF
6. source e Signal reception is affected by weather atmospheric conditions and seasonal changes e See the information under Signal Reception Troubleshooting if you experience problems with time calibration signal reception About Auto Receive With auto receive the watch receives the time calibration signal automatically up to six times a day When any auto receive is successful the remaining auto receive operations are not performed The start times of the auto receive operations depend on the current Home City and DST settings Home City Auto Receive Start Times 1 2 3 4 5 6 LON Standard Time 1 00 am 2 00 am 3 00 am 4 00 am 5 00 am Midnight Daylight Saving 2 00 am 3 00 am 4 00 am 5 00 am Midnight 1 00 am Time next day PAR Standard Time 2 00 am 3 00 am 4 00 am 5 00 am Midnight 1 00 am BER next day Daylight Saving 3 00 am 4 00 am 5 00 am Midnight 1 00 am 2 00 am Time next day next day ATH Standard Time 3 00 am 4 00 am 5 00 am Midnight 1 00 am 2 00 am next day next day Daylight Saving 4 00 am 5 00 am Midnight 1 00 am 2 00 am 3 00 am Time next day next day next day Note e Auto receive is performed only if the watch is in the Timekeeping Mode or World Time Mode when one of the calibration times is reached It is not performed if a calibration time is reached while an alarm is sounding or while you are
7. MO0603 EA CASIO Operation Guide 4378 4379 About This Manual e Button operations are indicated using the letters shown in the illustration e 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 General Guide e Press to change from mode to mode e In any mode press to illuminate the display Timekeeping Mode Press Radio controlled Timekeeping Ho r hand 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 e This watch is designed to pick up the time calibration signal transmitted from Rugby England and the signal from Mainflingen Germany Minute hand 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 e 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 e When using the watch in an area that is outside of the range of the transmitters in Rugby and Mainflingen you need to manually adjust the time as r
8. ases holding down these buttons during a scroll operation scrolls through the data at high speed Initial Screens When you enter the World Time or Alarm Mode the data you were viewing when you last exited the mode appears first Radio controlled Timekeeping Precautions e Strong electrostatic charge can result in the wrong time being set e 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 e Even if the time calibration signal is received properly certain conditions can cause the time setting to be off by up to one second e The current time setting in accordance with the time calibration signal takes priority over any time settings you make manually e The watch is designed to automatically update the date and day of the week for the period January 1 2000 to December 31 2099 Setting of the date by the time calibration signal cannot be performed starting from January 1 2100 e This watch can receive signals that differentiate between leap years and non leap years e Though this watch is designed to receive both time data hour minutes seconds and date data year month day certain signal conditions can limit reception to time data only e N
9. configuring settings while settings are flashing on the display e When a reception starts the second hand will move at high speed to the 12 o clock position where it will stop until the reception is complete e Auto receive of the calibration signal is designed to be performed early in the morning while you sleep provided that the Timekeeping Mode time is set correctly Before going to bed for the night remove the watch from your wrist and put it in a location where it can easily receive the signal e When auto receive is turned on the watch receives the calibration signal for two to seven minutes everyday when the time in the Timekeeping Mode reaches each of the calibration times Do not perform any button operation within seven minutes before or after any one of the calibration times Doing so can interfere with correct calibration e Remember that reception of the calibration signal depends on the time kept in the Timekeeping Mode The receive operation will be performed whenever the display shows any one of the calibration times regardless of whether or not the Timekeeping Mode time actually is the correct time About the Receiving Indicator The receiving indicator shows the strength of the calibration signal being received For best reception be sure to keep the watch in a location where signal strength is strongest Receiving indicator arp O w Weak Strong Level 1 Level 4 e Even in an area where sig
10. dney 10 0 Melbourne Guam Rabaul NOU Noumea 11 0 Port Vila WLG Wellington 12 0 Christchurch Nadi Nauru Island e Based on data as of December 2005 CASIO
11. down to move the hands at way forward at high speed high speed press B to lock the high speed hand movement e To stop the hand movement press any button e Hand movement stops automatically if the hour hand makes one full 12 hour revolution Move the hand setting along e While holding down B to move the hands at way back at high speed high speed press O to lock the high speed hand movement e To stop the hand movement press any button e Hand movement stops automatically if the hour hand makes one full 12 hour revolution 6 Press to exit the setting screen e The minute hand will be adjusted slightly to match the seconds when you exit the setting screen e To return to the Timekeeping Mode press 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 e f you leave the watch in the Alarm or Hand Setting Mode for two or three minutes without performing any operation it automatically returns to the Timekeeping Mode e If you leave the watch with a flashing setting on the display for two or three minutes without performing any operation the watch automatically exits the setting screen Scrolling The and O buttons are used in various modes and setting screens to scroll through data on the display In most c
12. e To perform manual receive Important e When getting ready to receive the time calibration signal position the watch as shown in the nearby illustration with its 12 o clock side facing towards a window Make sure there are no metal objects nearby e The watch should not be on its side or facing the wrong way e Proper signal reception can be difficult or even impossible under the conditions listed below Inside or Inside a Near Near a Near high Among or among vehicle household construction tension behind buildings appliances site airport or power lines mountains office other sources equipment of electrical or a mobile noise phone Operation Guide 4378 4379 e Signal reception is normally better at night than during the day e Time calibration signal reception takes from two to seven minutes but in some cases it can take as long as 14 minutes Take care that you do not perform any button operations or move the watch during this time Reception Ranges 1 500 kilometers 500 kilometers e At distances further than about 500 kilometers from a transmitter signal reception may not be possible during certain times of year or times of day Radio interference may also cause problems with reception e 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
13. ed Time Screen Elapsed time More than i Minutes Seconds gma one minute 1 100 second Split Time Screen Split time Split a Minutes oe 1 100 sealed Minutes Seconds e The stopwatch continues to run restarting from zero after it reaches its limit until you stop it e Exiting the Stopwatch Mode while a split time is frozen on the display clears the split time and returns to elapsed time measurement e The stopwatch measurement operation continues even if you exit the Stopwatch Mode e All of the operations in this section are performed in the Stopwatch Mode which you enter by pressing To measure times with the stopwatch Elapsed Time D 0 0 mm0 A Start Stop Re start Stop Clear Split Time Start Split Split release Stop Clear Two Finishes D A dD amp Start Split Stop Split release Clear First runner Second runner Display time of finishes finishes second runner Display time of first runner Timekeeping Use the Timekeeping Mode to set and view the current time and date This section also explains how to manually set the current date and time e In the Timekeeping Mode press to cycle through the digital time screens as shown below e In the Timekeeping Mode press to display the last signal screen The last signal screen shows the date and time of the last successful time calibration signal reception e All of the operations in this section
14. eeping Precautions World Time The World Time Mode digitally displays the current time in 30 cities 29 time zones around the world e Pressing in the World Time Mode causes the applicable city code to appear on the digital display for about two seconds e If the current time shown for a city is wrong check your Home City time settings and make the necessary changes e The watch will perform a signal reception even if it is in the World Time Mode when a calibration time is reached If this happens the World Time Mode time settings will be adjusted in accordance with the Timekeeping Mode s Home City time e All of the operations in this section are performed in the World Time Mode which you enter by pressing City Code Current time in the selected city code To view the time in another city While in the World Time Mode press to scroll through the city codes time zones e For full information on city codes see City Code Table To toggle a city code time between Standard Time and Daylight Saving Time 1 In the World Time Mode use O to display the city code time zone whose Standard Time Daylight Saving Time setting you want to change e Pressing in the World Time Mode causes the osr gt applicable city code to appear on the digital display for DST indicator about two seconds 2 Hold down to toggle Daylight Saving Time DST indicator displayed and Standard Time DST
15. ens the battery operating time Operation Guide 4378 4379 City Code Table ay City ae Other major cities in same time zone 11 0 Pago Pago HNL Honolulu 10 0 Papeete ANC Anchorage 09 0 Nome San Francisco Las Vegas Vancouver LAX Los Angeles 08 0 Seattle Tacoma Aea City DEN Denver 07 0 El Paso Edmonton Houston Dallas Fort Worth CHI Chicago 06 0 New Orleans Mexico City Winnipeg Montreal Detroit Miami Boston NYC New York 05 0 Panama City Havana Lima Bogota CCS Caracas 04 0 La Paz Santiago Port Of Spain RIO Rio De Janeiro 03 0 Sao Paulo Buenos Aires Brasilia Montevideo 02 0 01 0 Praia GMT Dublin Lisbon Casablanca Dakar Abidjan LON London 00 0 PAR Paris Milan Rome Madrid Amsterdam Algiers Hamburg BER Berlin 01 0 Frankfurt Vienna Stockholm ATH Athens Helsinki Istanbul Beirut Damascus CAI Cairo 02 0 Cape Town JRS Jerusalem JED Jeddah 03 0 Kuwait Riyadh Aden Addis Ababa Nairobi Moscow THR Tehran 03 5 Shiraz DXB Dubai 04 0 Abu Dhabi Muscat KBL Kabul 04 5 KHI Karachi 05 0 Male DEL Delhi 05 5 Mumbai Kolkata DAC Dhaka 06 0 Colombo RGN Yangon 06 5 BKK Bangkok 07 0 Jakarta Phnom Penh Hanoi Vientiane HKG Hong Kong 08 0 een Lumpur Beijing Taipei Manila Perth SEL Seoul Pyongyang TYO Tokyo 09 0 ADL Adelaide 09 5 Darwin SYD Sy
16. equired See Timekeeping for information about manual settings e 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 1 In the Timekeeping Mode hold down until the city code starts to flash which indicates the setting screen e The second hand will move at high speed to the 12 o clock position where it will stop 2 Use D east and west to select the city code you want to use as your Home City e The following are the city codes for major cities in the Western Europe time zones i 4 London i and Et City code Fi Paris Berlin Milan Rome Amsterdam Hamburg Frankfurt Vienna PHTH Athens 3 Press to exit the setting screen e 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 e 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 e If you are in an area that does not use Daylight Saving Time summer time turn off the DST setting e The watch will receive the time calibration
17. indicator not displayed e Note that you cannot use the World Time Mode to change the DST setting of the Home City code you currently have selected in the Timekeeping Mode See To change the Daylight Saving Time summer time setting for information about turning the Home City code DST setting on and off e The DST indicator will appear on the display whenever you display a city code for which Daylight Saving Time is turned on e Note that you cannot switch between Standard Time and Daylight Saving Time while FIT is selected as the city code e Note that the DST Standard Time setting affects only the currently displayed city code Other city codes are not affected CASIO Operation Guide 4378 4379 Alarms On Off status You can set three independent Daily Alarms When an alarm is turned on the alarm tone sounds when the alarm time is reached You can also turn on an Hourly Time Signal that causes the watch to beep twice every hour on p Alarm number the hour e The alarm and Hourly Time Signal operate in accordance with the current digital time e The alarm number AL1 though AL3 indicates an alarm screen SIG appears in place of the alarm number when Alternate at the Hourly Time Signal screen is shown two second All of the operations in this section are performed in the interval Alarm Mode which you enter by pressing mr ieee iz Alarm time Hour Minutes To set an alarm time 1 In
18. nal strength is strong it takes about 10 seconds for signal reception to stabilize enough for the receiving indicator to indicate signal strength e Use the receiving indicator as a guide for checking signal strength and for finding the best location for the watch during signal reception e The Level 4 receiving indicator indicates that at least one of the auto calibration signal receive operation was successful Note however that the Level 4 receiving indicator is cleared from the display when the first auto receive operation of the day is performed e The Level 4 receiving indicator appears on the Timekeeping Mode s Receiving Indicator and Seconds Count screen only The Level 4 receiving indicator is not displayed if signal reception was unsuccessful or after manual adjustment of the current time setting To perform manual receive 1 Place the watch on a stable surface so its top 12 o clock side is facing towards a window 2 In the Timekeeping Mode hold down O for about two seconds until the watch beeps 3 Release and RC flashes to indicate that signal reception has started e When a reception starts the second hand will move at high speed to the 12 o clock position where it will stop until the reception is complete Receiving indicator e Time calibration signal reception normally takes from two to seven minutes but in some cases it can take as long as 14 minutes Take care that you do not perform any button o
19. ormally the signal reception date shown by the last signal screen is the date data included in the received time calibration signal When only time data is received however the last signal screen shows the date as kept in the Timekeeping Mode at the time of signal reception e f 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 e If you have problems with proper time calibration signal reception or if the time setting is wrong after signal reception check your Home City code DST summer time and auto receive settings The following are the initial factory defaults for these settings CASIO Setting Initial Factory Default City code EEF Berlin Module 4378 f4 London Module 4379 DST summer time A Auto switching Auto receive Rt GMM Auto receive Transmitters This watch is designed to receive the time calibration signal transmitted from Rugby England and the signal from Mainflingen Germany e The following explains how the watch determines which transmitter it should check first Module 4378 In this case The watch does this The first signal auto search operation 1 Checks the Mainflingen signal first after factory default settings are in effect 2 If the Mainflingen signal cannot be or after the city code has been changed received checks the Rugby signal
20. ot in the Timekeeping Mode e Enter the Timekeeping Mode manual receive e Your current Home City is not one of the and try again following city codes ATH BER PAR or e Select ATH BER PAR or LON LON as your Home City Auto receive is e You changed the time setting manually e Perform manual receive or turned on but e The watch was not in the Timekeeping wait until the next auto the Level 4 or World Time Mode or you were receive is performed e Check to make sure the watch is in a location where it can receive the signal receiving performing some button operation indicator does during auto receive not appear on e Even if reception is successful the the Timekeeping Level 4 receiving indicator disappears Mode display each day when the first auto receive operation of the day is performed e Time data hour minutes seconds only was received during the last reception The Level 4 receiving indicator appears only when time data and date data year month day are both received Time setting is e If the time is one hour off the DST e Change the DST setting to incorrect setting may be incorrect Auto DST following signal e The Home City code setting is not e Select the correct Home City reception correct for the area where you are using code the watch e For further information see Important under Time Calibration Signal Reception and Radio controlled Timek
21. perations or move the watch during this time e After signal reception is complete the display of the watch changes to the last signal screen Note e To interrupt a reception and return to the Timekeeping Mode press e f the reception is unsuccessful the message EFF appears on the display for about one or two minutes After that the watch returns to the Timekeeping Mode F screen to the normal timekeeping screen by pressing O To turn auto receive on and off 1 In the Timekeeping Mode press O to display the Last Signal screen ONON status 2 Hold down until the current auto receive setting i or mF starts to flash This is the setting screen e The second hand will move at high speed to the 12 o clock position where it will stop e Note that the setting screen will not appear if the currently selected Home City is one that does not support time calibration reception 3 Press O to toggle auto receive on ti and off iF 4 Press to exit the setting screen e The second hand will advance at high speed to the correct position in accordance with the digital time seconds count and resume normal movement from there e For information about city codes that support signal reception see To set your Home City Signal Reception Troubleshooting Check the following points whenever you experience problems with signal reception Problem Probable Cause What you should do Cannot perform e The watch is n
22. signal automatically from the applicable transmitter in the middle of the night and update its settings accordingly For information about the relationship between city codes and transmitters see Transmitters World Time Mode Alarm Mode Hand Setting Mode To display the digital time and last signal screen e In the Timekeeping Mode press to cycle through the digital time screens as shown below e In the Timekeeping Mode press 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 Receiving indicator Day Receiving Press Indicator and Seconds Count Current Time peal rj _ Seconds Day of week Sereen Finite Press PM indicator Reception date 2 seconds Reception Time gt Last Signal Screen ia oe 2 seconds Time Calibration Signal Reception There are two different methods you can use to receive the time calibration signal auto receive and manual receive e Auto Receive With auto receive the watch receives the time calibration signal automatically up to six times a day When any auto receive is successful the remaining auto receive operations are not performed For more information see About Auto Receive e Manual Receive Manual receive lets you start time calibration signal reception with the press of a button For more information se
23. the Alarm Mode press to select the alarm whose time you want to set AL1 2 Hold down until the hour setting of the alarm time starts to flash which indicates the setting screen e This automatically turns on the alarm On Off status 3 Press to move the flashing between the hour and minute settings 4 While a setting is flashing use and to change it e When setting the alarm time using ia 12 ane format take care to set the time correctly as a m no indicator or p m P indicator e If you have 24 hour timekeeping selected in the Timekeeping Mode the alarm time is also displayed in 24 hour format 5 Press to exit the setting screen Alarm Operation The alarm sounds in all modes at the preset time for about 10 seconds or until you stop it by pressing any button To test the alarm In the Alarm Mode hold down to sound the alarm To turn an alarm and the Hourly Time Signal on and off 1 In the Alarm Mode press to select an alarm or the Hourly Time Signal 2 When the alarm or the Hourly Time Signal you want to set is selected press to turn it on F and off F Stopwatch 1 100 The stopwatch lets you measure elapsed time split times Seconds second and two finishes e The display range of the stopwatch is 99 minutes 59 99 seconds e The 1 100 second value appears while the elapsed time operation is stopped or while a split time is frozen on the display Elaps
24. ty codes in the Timekeeping Mode and World Time Mode is calculated in accordance with the Greenwich Mean Time GMT differential for each city based on your Home City time setting e 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 12 hour 24 hour Timekeeping Formats The 12 hour 24 hour timekeeping format you select in the Timekeeping Mode is also applied in all other modes e With the 12 hour format the P PM indicator appears on the display for times in the range of noon to 11 59 p m and no indicator appears for times in the range of midnight to 11 59 a m e With the 24 hour format times are displayed in the range of 0 00 to 23 59 without any indicator Illumination Precautions An LED light emitting diode and a light guide panel illuminate the digital display for easy reading in the dark In any mode press 8 to illuminate the display for about one second e The illumination provided by the light may be hard to see when viewed under direct sunlight e Illumination automatically turns off whenever an alarm sounds e Frequent use of illumination short
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