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E-33

World Time

World time lets you display the current time in any one of
29 cities (29 time zones) around the world.

•

If the current time is not correct, check your current
Home City settings and make adjustments as required
(page E-37).

•

For full information on city codes, see the “City Code
Table” at the back of this manual.

30

City code

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Summary of Contents for 4390

Page 1: ...Module No 4390 MO0901 EA ...

Page 2: ...be sure to read this manual carefully Be sure to keep all user documentation handy for future reference This watch does not have a city code that corresponds to the UTC offset of 3 5 hours Because of this the radio controlled atomic timekeeping function will not display the correct time for Newfoundland Canada E ...

Page 3: ... 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 Even if the face of the watch is blocked only partially from light charging will be reduced s...

Page 4: ...ntinues 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 Battery discharges...

Page 5: ... analog hands aren t moving If the analog hands aren t moving it means that the power saving mode has stopped them to save battery power See Power Saving page E 56 for more information The hands also stop when the watch s battery runs down Note that CASIO COMPUTER CO LTD assumes no responsibility for any damage or loss suffered by you or any third party arising through the use of this product or i...

Page 6: ...u need in order to perform operations in each mode Further details and technical information can be found in the Reference section To ensure that this watch provides you with the years of service for which it is designed be sure to carefully read and follow the instructions under Operating Precautions and User Maintenance 30 Minute hand Day Hour hand Second hand ...

Page 7: ...mekeeping E 11 World Time E 33 Configuring Time and Date Settings Manually E 37 Auto Hand Home Position Correction E 41 Manual Home Position Correction E 44 Power Supply E 47 Reference E 53 Specifications E 58 Operating Precautions E 60 User Maintenance E 68 ...

Page 8: ... City E 12 To check the current Home City STD DST setting E 14 To perform manual receive E 28 To check the latest signal reception results E 30 To search for a city E 34 To check whether a time zone time is AM or PM E 34 To change the STD DST setting of a particular city code E 35 To check the STD DST setting for a World Time Mode city E 36 ...

Page 9: ...E 7 To trigger the auto hand home position correction operation manually E 42 To recover from the sleep state E 57 ...

Page 10: ...Timekeeping Mode Receive Status Check page E 30 Manual Receive page E 28 Setting Mode pages E 12 E 44 Press A Hold down A for about two seconds Press any button Hold down A for about five seconds Press A General Guide ...

Page 11: ...E 9 Press C to change the mode Except while the watch is performing auto hand home position correction holding down C for about two seconds will return directly to the Timekeeping Mode ...

Page 12: ...d Time Mode page E 33 30 Minute hand Day Hour hand Second hand Press C Timekeeping Mode Operations To check the current Home City setting by pressing D page E 12 To check the latest signal reception results by pressing A page E 30 ...

Page 13: ...his watch adjusts its time setting automatically in accordance with a time calibration signal You also can perform a manual procedure to set the time and date when necessary The first thing you should do after purchasing this watch is to specify your Home City which is the city where you normally will use the watch For more information see To specify your Home City on page E 12 When using the watc...

Page 14: ... hands to move to the applicable time All operations except for the following are disabled while the watch s hands are moving to the current time for a newly selected city code D City selection C Timekeeping Mode For information about the Home City see Home City Codes and Transmitters page E 14 The watch will receive the time calibration signal of the transmitter of the selected city code 30 Secon...

Page 15: ...then the watch will enter the Timekeeping Mode Normally your watch should show the correct time as soon as you specify your Home City code If it does not it should adjust automatically after the next auto receive operation You also can perform manual receive page E 28 or you can set the time manually page E 37 Even if the time calibration signal is received correctly there are some times when the ...

Page 16: ...eeping Mode after about two seconds or if you press D Home City Codes and Transmitters The time calibration signal the watch will attempt to pick up depends on its current Home City code setting as shown below If you use the watch in Japan or Europe each of which has two different transmitter locations it will try to receive the time calibration signal from one of the transmitters in your current ...

Page 17: ...os Angeles DEN Denver CHI Chicago NYC New York Frequency 60 0 kHz 77 5 kHz 68 5 kHz 40 0 kHz 60 0 kHz 60 0 kHz Transmitter German U K Signals Anthorn England Mainflingen Germany China Signal Shangqiu City China Japan Signals Fukushima Japan Fukuoka Saga Japan U S Signal Fort Collins Colorado the United States ...

Page 18: ...ove you also can select city codes that are outside the ranges of the time calibration signal transmitters supported by this watch Note that this watch does not have a city code that corresponds to Newfoundland The U S time calibration signal can be picked up by the watch while in North America The term North America in this manual refers to the area that consists of Canada the continental United ...

Page 19: ...eception Ranges 2 000 miles 3 000 kilometers U K and German Signals Anthorn Mainflingen 1 500 kilometers 500 kilometers The Anthorn signal is receivable within this area U S Signal Fort Collins 600 miles 1 000 kilometers ...

Page 20: ... 18 Japan Signals 1 000 kilometers 1 000 kilometers Fukuoka Saga 500 kilometers Fukushima 500 kilometers 500 kilometers Changchun Beijing 1 500 kilometers China Signal Shanghai Hong Kong Shangqiu Chengdu ...

Page 21: ...oka Saga Japan transmitters 500 kilometers 310 miles Shangqiu China transmitter 500 kilometers 310 miles 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 S...

Page 22: ...l depends on each country and geographic area You can check the current DST setting which is indicated by the second hand for your Home City page E 12 or any World Time City page E 33 The watch will adjust the DST setting automatically when it receives a time calibration signal while any one of the following city codes is selected as the Home City LON PAR ATH TYO ANC LAX DEN CHI NYC When the secon...

Page 23: ...ight saving time manually HKG HNL As of June 2008 China does not use Daylight Saving Time DST If China does go to the Daylight Saving Time system in the future some functions of this watch may no longer operate correctly If you experience problems receiving the time calibration signal in your area it probably is best to switch between Standard Time and Daylight Saving Time summer time manually ...

Page 24: ... time calibration signal automatically up to six times a day five times for the China signal When any auto receive is successful the remaining auto receive operations are not performed For more information see About Auto Receive page E 25 Manual Receive Manual receive lets you start a time calibration receive operation with the press of a button For more information see To perform manual receive p...

Page 25: ...stration with its 12 o clock side facing towards a window This watch is designed to receive a time calibration signal late at night Because of this you should place the watch near a window as shown in the illustration when you take it off at night Make sure there are no metal objects nearby Make sure the watch is facing the right way ...

Page 26: ...kes 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 Inside or among buildings Inside a vehicle Near a construction site airport or other sources of electrical noise Near high tension power lines Among or behind mountains Near household appliances office equipment or a mobile pho...

Page 27: ...es a day five times for the China signal When any auto receive is successful the remaining auto receive operations are not performed The reception schedule calibration times depends on your currently selected Home City and whether standard time or Daylight Saving Time is selected for your Home City ...

Page 28: ...me 1 1 00 am 2 00 am 2 00 am 3 00 am 3 00 am 4 00 am Midnight 1 00 am Midnight 2 2 00 am 3 00 am 3 00 am 4 00 am 4 00 am 5 00 am 1 00 am 2 00 am 1 00 am 3 3 00 am 4 00 am 4 00 am 5 00 am 5 00 am Midnight 2 00 am 3 00 am 2 00 am 4 4 00 am 5 00 am 5 00 am Midnight Midnight 1 00 am 3 00 am 4 00 am 3 00 am 5 5 00 am Midnight Midnight 1 00 am 1 00 am 2 00 am 4 00 am 5 00 am 4 00 am 6 Midnight 1 00 am 1...

Page 29: ...you are configuring settings Auto receipt 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 receive the signal easily Remember that reception of the calibration signal depends on the current time i...

Page 30: ...seconds 3 The second hand will move to READY R to indicate that the watch is setting up for time calibration reception The second hand will move to WORK W and stay there while actual reception is in progress If signal reception is unstable during reception the second hand may move between WORK W and READY R The hour and minute hands continue to keep time normally 30 READY R WORK W ...

Page 31: ...e To interrupt a receive operation and return to the Timekeeping Mode press any button If reception is not successful the second hand will move to NO N Five seconds later the second hand will resume normal operation without any adjustment of the hand setting If the second hand is pointing to YES Y or NO N you can return to the Timekeeping Mode by pressing A 30 YES Y NO N ...

Page 32: ...ht the second hand will move to YES Y If the watch has been unable to receive any signal successfully the second hand will move to NO N The watch will return to the Timekeeping Mode after five seconds or when you press A The current receive result is cleared when the first auto receive operation is performed on the following day This means YES Y indicates successful signal reception since the star...

Page 33: ...often present during the day time which can interfere with calibration signal reception Problem The second hand is pointing at NO N What you should do Perform manual signal receive at night or wait until the next auto signal receive operation is performed Enter the Timekeeping Mode and try again Check to make sure the watch is in a location where it can receive the signal page E 23 Signal Receptio...

Page 34: ... hands is off Problem The time setting is incorrect following signal reception What you should do Select the correct Home City page E 12 Enter the home position adjustment mode and adjust the home position page E 41 For further information see Important page E 23 and Radio controlled Atomic Timekeeping Precautions page E 54 ...

Page 35: ...any one of 29 cities 29 time zones around the world If the current time is not correct check your current Home City settings and make adjustments as required page E 37 For full information on city codes see the City Code Table at the back of this manual 30 City code ...

Page 36: ...one minute for the hands to move to the applicable time All operations except for the following are disabled while the watch s hands are moving to the current time for a newly selected city code D City selection C Timekeeping Mode To check whether a time zone time is AM or PM 1 In the World Time Mode use D to select the city whose setting you want to check 2 Press B and the second hand will move t...

Page 37: ... and standard time Changing the setting will cause the second hand to move to STD or DST The second hand will return to the city code you selected in step 1 after about five seconds or if you press A again If you want to configure other settings wait until the second hand moves back to the city code before proceeding You can select STD or DST for each World Time city code except UTC 30 30 Hold dow...

Page 38: ...y 1 In the World Time Mode use D to select the city whose setting you want to check 2 Press A and the second hand will move to either STD or DST The second hand will return to the city code you selected in step 1 after about five seconds or if you press A again ...

Page 39: ...1 In the Timekeeping Mode keep A depressed for about five seconds as the second hand moves to the last signal reception result Y or N then to READY or R for some models and then AM or PM 2 Use C to cycle through available settings in the sequence shown below Hour and minute C Year 10s digit C Year 1s digit C C Month C Day See To specify your Home City page E 12 for details about selecting a Home C...

Page 40: ...E 38 3 Use D and B to change the time setting in one minute increments 4 Press C to advance to the year tens digit setting 30 ...

Page 41: ...r ones digit by one 8 Press C to advance to the month setting 5 Press D to increase the year tens digit by one 6 Press C to advance to the year ones digit setting 00 10 20 30 40 50 60 70 80 90 0 1 2 3 4 5 6 7 8 9 Second hand Second hand ...

Page 42: ...press A This will exit the setting procedure and reset the seconds count to zero Press A to restart timekeeping on a time signal on the TV or radio 30 9 Press D to move to the next month 10 Press C to advance to the day setting DEC JUN JAN FEB MAR APR MAY NOV OCT SEP AUG JUL Second hand ...

Page 43: ...Manual Home Position Correction page E 44 Each hour the watch performs automatic correction of the hand positions Correction can be performed for error up to 55 minutes slow or 5 minutes fast You also can trigger the auto hand home position correction operation manually if you want See To trigger the auto hand home position correction operation manually page E 42 for more information The auto hand...

Page 44: ...not release the button yet Wait until the second hand completes a full revolution before you release B To interrupt an ongoing correction operation and return to the Timekeeping Mode press B again If you release B when the second hand stops the first time after about three seconds in the above operation the watch will enter the manual home position correction mode which is described under Manual H...

Page 45: ... performs the following two steps 1 The hands will move automatically in order to determine the home positions of the watch 2 After the hand home positions are determined the watch will return to normal timekeeping automatically This completes the correction operation ...

Page 46: ...rrection is not required if the time and day settings are correct You also can use auto hand home position correction page E 41 to correct the home positions of the second minute and hour hands 1 In the Timekeeping Mode hold down B for about three seconds until the second hand stops Release B at this time 2 Check the second hand position Home Position Second hand 12 o clock 3 If the second hand ho...

Page 47: ...our and minute hand correction This will cause the hour and minute hands to their home positions Home Positions Hour hand 12 o clock Minute hand 12 o clock 5 Use D and B to correct the hour and minute hands 30 Hour hand Minute hand ...

Page 48: ...ves the day indicator very slightly Keep pressing the applicable button until the day is aligned the way you want 8 Press A to exit home position correction and return to normal timekeeping If you press C instead of A the watch will return to step 1 second hand home position adjustment of this procedure Check to make sure that the time and day are being indicated correctly 1 Day ...

Page 49: ...he watch for charging Example Orient the watch so its face is pointing at a light source The illustration shows how to position a watch with a resin band Note that charging efficiency drops when any part of the solar cell is blocked by clothing etc You should try to keep the watch outside of your sleeve as much as possible Even if the face of the watch is blocked from light only partially charging...

Page 50: ...perience problems getting the special rechargeable battery to charge fully contact your dealer or CASIO distributor about having it replaced The special rechargeable secondary battery used by your watch is not intended to be removed or replaced by you Use of a rechargeable battery other than the special one specified for this watch can damage the watch The current time and all other settings retur...

Page 51: ...s Day changes to home position Second hand stopped Hour and minute hands stopped at 12 o clock Level 1 2 3 Function Status All functions enabled Time calibration signal reception disabled All functions disabled The second hand jumping every two seconds Level 2 indicates that battery power is quite low Expose the watch to light as soon as possible to charge the battery 30 ...

Page 52: ...ps to Level 3 the current time and all other settings return to their initial factory defaults Charging Precautions Certain charging conditions can cause the watch to become very hot Avoid leaving the watch in the areas described below whenever charging its rechargeable battery Warning Leaving the watch in bright light to charge its rechargeable battery can cause it to become quite hot Take care w...

Page 53: ...operations Exposure Level Brightness Outdoor sunlight 50 000 lux Sunlight through a window 10 000 lux Daylight through a window on a cloudy day 5 000 lux Indoor fluorescent lighting 500 lux Approximate Exposure Time 8 minutes 30 minutes 48 minutes 8 hours For details about the battery operating time and daily operating conditions see the Power Supply section of the Specifications page E 59 Stable ...

Page 54: ...0 000 lux Sunlight through a window 10 000 lux Daylight through a window on a cloudy day 5 000 lux Indoor fluorescent lighting 500 lux Approximate Exposure Time Level 3 Level 2 Level 1 2 hours 6 hours 9 hours 101 hours Exposure Level Brightness The above exposure time values are all for reference only Actual required exposure times depend on lighting conditions ...

Page 55: ...rrent time setting mode or in the hand day home position correction mode the watch will return to the Timekeeping Mode automatically If you do not perform any operation for about two or three minutes while a setting mode is selected the watch will exit the setting mode automatically High Speed Movement In most cases when configuring settings holding down a button will start high speed scrolling of...

Page 56: ...tion 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 automatically for the period January 1 2000 to December 31 2099 Setting of the date by the time calibration signal will no...

Page 57: ...ge automatically when the current time reaches midnight The date change at the end of the month may take more time than normal The current time for all time zones in the Timekeeping Mode and World Time Mode is calculated in accordance with the Coordinated Universal Time UTC offset of each zone based on your Home Time Zone time setting UTC is the world wide scientific standard of timekeeping It is ...

Page 58: ...atically whenever the watch is left for a certain period in an area where it is dark The table below shows how watch functions are affected by Power Saving There actually are two sleep state levels second hand sleep and function sleep Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state The watch will not enter the sleep state between 6 00 AM and 9 59 PM If the wat...

Page 59: ...E 57 To recover from the sleep state Perform any one of the following operations Move the watch to a well lit area Press any button ...

Page 60: ...ime Calibration Signal Reception Auto receive up to six times a day 5 times a day for the Chinese calibration signal Remaining auto receives cancelled as soon as one is successful Manual receive Receivable Time Calibration Signals Mainflingen Germany Call Sign DCF77 Frequency 77 5 kHz Anthorn England Call Sign MSF Frequency 60 0 kHz Fukushima Japan Call Sign JJY Frequency 40 0 kHz Fukuoka Saga Jap...

Page 61: ...ving Time summer time Home City specification Other Power Saving auto hand home position correction Power Supply Solar cell and one rechargeable battery Approximate battery operating time 6 months no exposure to light one signal reception of approximately 4 minutes per day ...

Page 62: ...other types of diving that requires air tanks On watch front or No 5BAR 10BAR 20BAR on back cover BAR mark Hand washing rain Yes Yes Yes Yes Water related work swimming No Yes Yes Yes Windsurfing No No Yes Yes Skin diving No No Yes Yes 5 Atmospheres 10 Atmospheres 20 Atmospheres Marking Example of Daily Use Water Resistance Under Daily Use Enhanced Water Resistance Under Daily Use ...

Page 63: ...ed Such conditions can reduce water resistance After submersion in seawater use plain water to rinse all salt and dirt from the watch In order to maintain water resistance have the gaskets of your watch replace periodically about once every two or three years A trained technician will know how to check your watch for proper water resistance whenever you have its battery replaced Battery replacemen...

Page 64: ... and make it hard for air to pass under the band which can lead to skin irritation Do not fasten the band too tightly There should be enough room between the band and your wrist so you can insert your finger Deterioration rust or corrosion of the band can cause it to break which may result in the watch falling off your wrist and becoming lost Be sure to take good care of the band and keep it clean...

Page 65: ... stop or otherwise malfunction Impact Your watch is designed to withstand impact incurred during normal daily use and light activity such as playing catch tennis etc Dropping the watch or otherwise subjecting it to strong impact however can lead to malfunction Note that watches with shock resistant designs G SHOCK Baby G G ms can be worn while operating a chain saw or engaging in other activities ...

Page 66: ...very strong electrostatic charge can cause the watch to display the wrong time Very strong electrostatic charge even can damage electronic components Chemicals Do not allow the watch to come into contact with thinner gasoline solvents oils or fats or with any cleaners adhesives paints medicines or cosmetics that contain such ingredients Doing so can cause discoloration of or damage to the case res...

Page 67: ...periods can cause it to become discolored Friction caused by certain conditions frequent external force sustained rubbing impact etc can cause discoloration of painted components If there are printed figures on the band strong rubbing of the printed area can cause discoloration Failure to clean dirt from the watch for long periods can cause fluorescent color to fade Wash dirt off with water as soo...

Page 68: ...g periods or failure to clean dirt from a leather band for long periods can cause it to become discolored Important Subjecting a natural leather or imitation leather band to rubbing or dirt can cause color transfer and discoloration Metal Components Failure to clean dirt from a metal band can lead to formation of rust even if the band is stainless steel or plated If the watch is exposed to sweat o...

Page 69: ...at which ensures good comfort and hygiene In order to ensure maximum bacteria and odor resistance keep the band clean Use an absorbent soft cloth to wipe the band clean of dirt sweat and moisture The bacteria and odor resistant band suppresses the formation of organisms and bacteria It does not protect against rash due to allergic reaction etc ...

Page 70: ...eep a leather band clean by wiping it with a dry cloth Both resin bands and leather band can become worn and cracked over time when subjected to normal daily use Should your band become badly cracked or worn be sure to have it replaced with a new one Request band replacement from your original retailer or an authorized CASIO Service Center Note that you will be charged for band replacement costs e...

Page 71: ... crevasses can soil the sleeves of clothing cause skin irritation and even interfere with watch performance Premature Wear Leaving sweat or water on a resin band or storing it an area subject to high moisture can lead to premature wear cuts and breaks Skin Irritation Individuals with sensitive skin or in poor physical condition may experience skin irritation when wearing a watch Such individuals s...

Page 72: ...this watch can damage the watch The rechargeable battery is charged when the solar cell is exposed to light and so regular periodic replacement is not required However charging and discharging of the battery over the years leads naturally to a loss in its ability to sustain a charge and shortens its operating time If this happens contact your original retailer or authorized CASIO Service Center ...

Page 73: ...L 1 City Code Table ...

Page 74: ...fferential City Code Table PPG HNL ANC LAX DEN CHI NYC SCL RIO FEN RAI UTC LON PAR ATH 11 10 9 8 7 6 5 4 3 2 1 0 1 2 Jeddah Tehran Dubai Kabul Karachi Delhi Dhaka Yangon Bangkok Hong Kong Tokyo Adelaide Sydney Noumea Wellington 3 3 5 4 4 5 5 5 5 6 6 5 7 8 9 9 5 10 11 12 JED THR DXB KBL KHI DEL DAC RGN BKK HKG TYO ADL SYD NOU WLG City City UTC Offset Code GMT Differential ...

Page 75: ...L 3 Based on data as of June 2008 The rules governing global times UTC offset and GMT differential and summer time are determined by each individual country ...

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