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You  are  now  the  proud  owner  of  a  SEIKO Radio Wave Controlled 
Worldtimer Cal. 7B26.   For  best  results, please  read  the  instructions  
in  this  booklet  carefully  before  using  your  SEIKO  Analogue Quartz 
Watch.  Please keep this manual handy for ready reference.

Sie sind jetzt stolzer Besitzer einer SEIKO Funk-Weltzeituhr Kal. 7B26. 
Bitte lesen Sie diese Bedienungsanleitung vor der Verwendung der Uhr 
sorgfältig durch und heben Sie sie gut auf.

Summary of Contents for 7B26

Page 1: ...instructions in this booklet carefully before using your SEIKO Analogue Quartz Watch Please keep this manual handy for ready reference Sie sind jetzt stolzer Besitzer einer SEIKO Funk Weltzeituhr Kal 7B26 Bitte lesen Sie diese Bedienungsanleitung vor der Verwendung der Uhr sorgfältig durch und heben Sie sie gut auf ...

Page 2: ... IC 56 SPECIFICATIONS 60 TROUBLESHOOTING 62 For the care of your watch see TO PRESERVE THE QUALITY OF YOUR WATCH in the attached Limited Warranty and Instruction Booklet FEATURES 4 DISPLAY AND BUTTON OPERATION 6 HOW TO USE BUTTON B 8 THE SCREW LOCK TYPE CROWN 9 CHARGING THE SOLAR BATTERY 10 CHECKING THE CHARGING STATUS BY THE MOVEMENT OF THE SECOND HAND 12 SETTING THE TIME BY RECEIIVIG RADIO SIGNA...

Page 3: ...watch is equipped with a time zone adjustment function The watch can automatically display local time in a different time zone by selecting the time zone It can receive official standard frequencies of Germany the United States and Japan to adjust the time AUTOMATIC TIME SETTING The watch maintains the precise time by automatically receiving radio signals on an official standard frequency The watc...

Page 4: ...on DCF77 Germany WWVB The United States JJY Japan Refer to HOW TO CHECK THE RECEPTION RESULT on pages 28 29 Reception Result Display Confirmation of reception result Y Reception Successful N Reception Failed Refer to HOW TO CHECK THE RECEPTION RESULT on pages 28 29 Positions of above displays may differ depending on the model DISPLAY AND BUTTON OPERATION C H I C A G O C A R A C A S LONDON CAIRO D ...

Page 5: ...se while pressing it The crown can be pulled out after it is unscrewed HOW TO USE BUTTON B Button B is recessed in the watch case to prevent accidental input Types of buttons differ depending on the design of the watch HOW TO PRESS BUTTON B Button B is covered except for the hollow in the middle of the button Press the hollow using an object with a long tapered tip The upper half of Button B is co...

Page 6: ...the watch moves at steady one second intervals through two second intervals and five second intervals Even if the watch is partially charged for a period shorter than the time provided in the above table it will resume one second interval movement however the one second interval movement will change to two second interval movement shortly To avoid this and charge the watch to a sufficient level us...

Page 7: ... incorrect even if the correct time is displayed check that the calendar is set to the preliminary position refer to RADIO SIGNAL RECEPTION on page 20 and PRELIMINARY POSITION CHECKING AND SETTING FOR THE CALENDAR on pages 58 59 The second hand moves at one second intervals The second hand moves at two second intervals The second hand moves at five second intervals The second hand is stopped The w...

Page 8: ...f the correct time is displayed check that the calendar is set to the preliminary position refer to RADIO SIGNAL RECEPTION on page 20 and PRELIMINARY POSITION CHECKING AND SETTING FOR THE CALENDAR on pages 58 59 POWER SAVE FUNCTION When the watch is not exposed to an adequate light source the power save function is automatically activated in order to reduce unnecessary energy consumption When this...

Page 9: ...to electrical energy and stores the power in a secondary battery When the secondary battery is fully charged the overcharge prevention function is automatically activated to avoid further charging There is no need to worry about damage caused by overcharging no matter how much the secondary battery is charged in excess of the time required for fully charging the watch Refer to STANDARD CHARGING TI...

Page 10: ...e preliminary hand positions are misaligned when the time is set the watch will be unable to display the precise time even after it receives a radio signal properly It is like a scale which cannot display the correct weight because its hand is not set to the 0 position before weighing Be assured that all hand positions of this watch are automatically corrected as long as the watch receives radio s...

Page 11: ...a transmitting station 60 KHz RADIO SIGNAL RECEPTION The watch can receive a radio signal either automatically or manually Automatic reception The watch receives radio signals automatically at least once a day It automatically receives radio signals at 2 00 AM 3 00 AM and 4 00 AM When the watch receives a proper radio signal the reception is completed The watch can continue to display the precise ...

Page 12: ...n transmitting station 77 5 KHz RADIO SIGNAL RECEPTION RANGE This watch can receive official standard frequencies of Germany the United States and Japan Japan JJY Germany DCF77 The United States WWVB Germany DCF77 The watch may fail to receive radio signals depending on the reception conditions weather geographic locations radio disturbances such as tall buildings and orientation of the watch Refe...

Page 13: ...pproximately 1 500 km 1 500 km radius of Fort Collins radio station There are four time zones within the reception range If the reception conditions are good the watch may be able to receive radio signals outside the reception range 1500 km Fort Collins transmitting station 60 KHz Fort Collins transmitting station 60 KHz The watch may fail to receive radio signals depending on the reception condit...

Page 14: ... incorrect even if the correct time is displayed the calendar may be out of the preliminary position refer to PRELIMINARY POSITION CHECKING AND SETTING FOR THE CALENDAR on pages 58 59 MANUAL RECEPTION It is possible to make the watch receive radio signals manually by keeping Button A pressed for three seconds or longer Reception procedure completed If the reception is successful the watch will dis...

Page 15: ...ON RESULT The second hand moves to display the reception result and then it moves to display which radio signal the watch has received C H I C A G O C A R A C A S LONDON CAIRO D U B A I D H A K A N E W Y O R K R I O D E JANEIRO AZORES UTC PARIS BERLIN M O S C O W K A R A C H I D E N V E R A N C H O R AG E MIDWAY NOUMEA TO KY O B A N G K O K L O S A N G E L E S H ONOLULU WELLINGTON SYDNEY H O N G K...

Page 16: ...ges 22 25 Whether the watch succeeds in receiving radio signals or not depends on the weather or receiving conditions The antenna for receiving radio signals inside the watch is at the 9 o clock position T u r n i n g t h e a n t e n n a toward the outside of the w i n d o w e n a b l e s t h e watch to receive radio signals more easily TO ENABLE THE WATCH TO RECEIVE RADIO SIGNALS EASILY Inside a ...

Page 17: ... fails to receive radio signals properly because of interference The watch may fail to receive radio signals depending on the location or reception conditions In such a case change the location of the watch Radio signals can easily be received during nighttime hours due to its characteristics The watch moves depending on the quartz movement loss gain 15 seconds per month when it is unable to recei...

Page 18: ...ed What is UTC Universal Coordinated Time UTC is the universal standard time coordinated through international agreement It is used as the official time around the world UTC is determined by adding a leap second to GMT Greenwich Mean Time which is determined through astronomical measurement in order to keep the precise time What is summer time DST Summer time is daylight saving time Advancing the ...

Page 19: ... difference Receivable City with mark DST adopted from UTC radio signal Standard Time 48 second position NEW YORK New York 5 hours WWVB 50 second position 10 o clock position CARACAS Caracas 4 hours WWVB 53 second position RIO DE JANEIRO Rio de Janeiro 3 hours 55 second position 11 o clock position RIO DE JANEIRO Rio de Janeiro 2 hours 58 second position AZORES Azores 1 hour 0 second position 12 o...

Page 20: ...osition 3 o clock position DHAKA Dhaka 6 hours 18 second position BANGKOK Bangkok 7 hours 20 second position 4 o clock position HONG KONG Hong Kong 8 hour JJY 23 second position TOKYO Tokyo 9 hour JJY 25 second position 5 o clock position SYDNEY Sydney 10 hour JJY 28 second position NOUMEA Nouméa 11 hours 30 second position 6 o clock position WELLINGTON Wellington 12 hours 32 second position 6 o c...

Page 21: ...ft untouched for 10 seconds Refer to HOW TO USE BUTTON B on page 8 HOW TO SET THE TIME ZONE HOW TO SELECT THE TIME ZONE C H I C A G O C A R A C A S LONDON CAIRO D U B A I D H A K A N E W Y O R K R I O D E JANEIRO AZORES UTC PARIS BERLIN M O S C O W K A R A C H I D E N V E R A N C H O R AGE MIDWAY NOUMEA TO K Y O B A N G K O K L O S A N G E L E S H ONOLULU WELLINGTON SYDNEY H O N G K O N G L H Y N ...

Page 22: ... normal time Checking the time zone you find that it displays CAIRO HOW TO SET SUMMER TIME CHICAGO CARACAS L O N D O N C A I R O D U B A I D H A K A NEW YORK RIO D E J A N E I R O A Z O R E S U T C P A R I S B E R L I N M O S C O W K A R A C H I D E OK H Y WWVB D C F 7 7 6 D S T Summer time is daylight saving time Advance the watch one hour to prolong the daytime during the longer daylight hours i...

Page 23: ...he radio signal reception range is properly selected A Some areas or countries in a time zone may not have adopted summer time Therefore the watch is designed so that summer time can be manually selected However a summer time automatic change can be made as long as your watch is used in an environment where German standard radio signals DCF77 can be continuously received Ex 2 During summer time in...

Page 24: ... zone selection mode The second hand points to the time zone currently selected PARIS BERLIN is selected in the figure above Refer to HOW TO USE BUTTON B on page 8 Proceed to the next operation within 10 seconds If the watch is left untouched for 10 seconds C H I C A G O C A R A C A S LONDON CAIRO D U B A I D H A K A N E W Y O R K R I O D E JAN EIRO AZORES UTC PARIS BERLIN M O S C O W K A R A C H ...

Page 25: ...IN is selected in the figure above The watch resumes its normal movement if it is left untouched for 10 seconds Proceed to the next operation within 10 seconds If the watch is left untouched for 10 seconds IN AN AREA OUTSIDE THE RECEPTION RANGE ABROAD ex Hawaii Honolulu C H I C A G O C A R A C A S LONDON CAIRO D U B A I D H A K A N E W Y O R K R I O D E JA NEIRO AZORES UTC PARIS BERLIN M O S C O W...

Page 26: ...h is left untouched for 10 seconds Select the time zone of your own country For example select PARIS BERLIN when WHEN YOU RETURN FROM A COUNTRY THAT HAS A DIFFERENT TIME ZONE C H I C A G O C A R A C A S LONDON CAIRO D U B A I D H A K A N E W Y O R K R I O D E JANEIRO AZORES UTC PARIS BERLIN M O S C O W K A R A C H I D E N V E R A N C H O R AGE MIDWAY NOUMEA TO K Y O B A N G K O K L O S A N G E L E...

Page 27: ...lock position and stops to enter the manual time setting mode The watch hands do not move if the crown is turned Pressing Button A advances the hands clockwise only Refer to THE SCREW LOCK TYPE CROWN on page 9 HOW TO MANUALLY SET THE TIME AND DATE MANUAL TIME SETTING Press Button A to set the time Each pressing of Button A advances the hour and minute hands by one minute If Button A is kept presse...

Page 28: ...tinue to show the current time The date numerals cannot be advanced or moved back by turning the crown Pressing of Button A only advances the date If Button A is kept pressed for one to two seconds the date advances rapidly until 31 days have advanced MANUAL DATE SETTING A Press Button A to set the date Each pressing of Button A advances the date by one day If Button A is kept pressed for one to t...

Page 29: ...pidly until they point to the 12 o clock position and stop Therefore all watch hands are set to the 12 o clock position and stop A B ABNORMAL DISPLAY OR IMPROPER FUNCTION HOW TO RESET THE BUILT IN IC When the watch shows an abnormal display or does not properly function or it does not move at one second intervals even after being sufficiently charged follow the instructions below to reset the buil...

Page 30: ...operation within 10 seconds PRELIMINARY POSITION CHECKING AND SETTING FOR THE CALENDAR If the date is incorrect after the built in IC is reset or the watch succeeds to receive a proper radio signal the calendar may be out of the preliminary position A B After 10 seconds T h e w a t c h r e s u m e s i t s normal movement and the correct date is displayed E a c h p r e s s i n g o f B u t t o n A a...

Page 31: ...on of operation Approximately 6 months Fully charged the Power Save is not activated If the Power Save is activated after it is fully charged the watch continues to run for approximately one year and a half 7 Time setting by receiving a radio signal Automatic reception 2 00 AM 3 00 AM and 4 00 AM attempts of reception depend on radio wave receiving conditions After having received a radio signal t...

Page 32: ...tch automatically corrects the hand alignment itself The second hand moves at two second intervals The second hand moves at five second intervals The stopped second hand pointing to the 15 second position or 45 second position started moving The watch hands advance rapidly unless a button is pressed After the rapid advancement is completed the watch resumes its normal movement Hand movement TROUBL...

Page 33: ...e i t s n o r m a l o n e s e c o n d i n t e r v a l movements Trouble Possible cause Solution Do not move the watch while it is receiving radio signals For details refer to TO ENABLE THE WATCH TO RECEIVE RADIO SIGNALS EASILY on page 30 Place the watch where it can easily receive radio signals For details refer to CONDITIONS IN WHICH THE WATCH MAY BE UNABLE TO RECEIVE RADIO SIGNALS on page 31 See...

Page 34: ... receive radio signals more easily Conduct manual reception if necessary For details refer to CONDITIONS IN WHICH THE WATCH MAY BE UNABLE TO RECEIVE RADIO SIGNALS on page 31 and MANUAL RECEPTION on pages 26 27 When the watch returns to normal temperature the condition will be corrected Conduct manual reception if necessary For details refer to MANUAL RECEPTION on pages 26 27 If the watch hands are...

Page 35: ...play confirms successful reception b u t t h e w r o n g d a t e i s displayed The crown or buttons cannot be operated I get lost in the middle of the setting procedures Blur on the dial glass persists Wrong date Crown and button operation Others Trouble Possible cause Solution After checking whether the calendar is set to the preliminary position perform the preliminary position settings for cale...

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