Manual Seiko 8B54 (page 1 of 12) (English)

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1. 基本機能･･････基本時計３針（時・分・秒針）、日付表示、レトログラード曜日表示、

　　　　　　　　小時計２針（時・分針）

2. 水晶振動数････３２，７６８Ｈｚ（Hz=1 秒間の振動数）

3. 精度･･････････平均月差 ±１５秒以内（電波受信による時刻修正が行なわれない場合、

かつ気温５℃～３５℃において腕に着けた場合）

4. 作動温度範囲･･－１０℃～＋６０℃

5. 駆動方式･･････ステップモーター式（基本時計の時分針、秒針、日付、曜日、小時計の時分針 )

6. 使用電源･･････専用二次電池：１個

7. 持続時間･･････約 9 ヶ月（フル充電で、パワーセーブが作動しない場合）

※ フル充電をした状態からパワーセーブが作動した場合は最大約 2 年

8. 電波受信機能･自動受信（午前 2 時、3 時、4 時）

※ 受信状況によって異なる。

※ 受信から次の受信までは上記クオーツの精度で動く

※ 強制受信機能付

9. 電子回路･･････発振、分周、駆動、受信回路：IC　3 個

製品仕様

※仕様は改良のため予告なく変更することがあります。

製品仕様

BSB8B54 p001-094 和文.indd 94 19.11.6 11:31:12 AM

※Lengthadjustmentserviceformetallicbandsisavailableat

theretailerfromwhomthewatchwaspurchasedorSEIKO

CUSTOMERSERVICECENTER.

　Theservicemayalsobeavailableonachargeablebasisatother

retailers,however,someretailersmaynotundertaketheservice.

Thank you very much for choosing a SEIKO watch.

For proper and safe use of your SEIKO watch,

please read carefully the instructions in this

booklet before using.

Keep this manual handy for easy reference.

BSB8B54 p095-188 欧文.indd 95 19.11.6 11:31:27 AM

Environmentsinwhichitisdi󱐰culttoreceivearadiosignal

… 132

5. Solar Charging Function

　Aboutcharging　 …………………… 134

　　Howtochargethewatch　 …… 134

　　Standardchargingtime　 …… 135

　Aboutenergy　……………………… 136

Energydepletionforewarningfunction

… 136

　　Powersavefunction　 ………… 137

To Preserve the Quality of Your Watch

　Dailycare　 ………………………… 138

　Performanceandtype　 ………… 139

　Waterresistance　………………… 140

　Magneticresistance　…………… 142

　Band　………………………………… 144

Specialclasps

………………………… 146

　Lumibrite　…………………………… 151

　Powersource ……………………… 152

　After-saleservice ………………… 154

7. Troubleshooting

Howtoconductmanualreception(Receivingaradiosignalmanually)

…

156

Whenthewatchisunabletoreceiveradiosignals

… 158



RadiosignalreceptionQ&A

 … 159



Howtomanuallysetthetime

 … 160

Howtomanuallysetthedate

 … 162



Howtomanuallysetthedayoftheweek

… 165

　Preliminaryposition　 …………… 168

　　

AutomaticHandPositionAdjustmentFunction(Functiontoautomatically

adjustthepreliminarypositionofthehourandminutehands)

… 168

Settingthepreliminarypositionofthedate

… 168

Howtocorrectthepreliminarypositions

… 169

Settingthepreliminarypositionofthedate,dayhand,hourandminutehands

… 169

　Attrouble　 ………………………… 174

Incaseofanabnormalmovement

 … 182

　　Howtoresetthebuilt-inIC…… 182

8. Specications

　Specications　 …………………… 188

Contents

1. About This Product

　Handlingcautions　 ………………… 98

　Features　…………………………… 102

Displayandbuttonoperation

　 … 104

　HowtousebuttonB……………… 106

　Screwlocktypecrown…………… 107

2. Before Use

　BeforeUse　………………………… 108

Checkingthechargingstatus

… 108

Checkingthetime,dateandday

 … 109

3. World time function

Howtousetheworldtimefunction

 …… 110

　　Worldtimefunction …………… 110

　

Howtoselectthetimezone(Howtodisplaythe

localtimearoundtheworld)

……………… 112

Timezonedisplayandtimedi󱐯erencetable

　… 114

　Whatisatimezone?　 ………… 116

Q&Afortheworldtimefunction

 … 118

　Aboutdualtimedisplay ………… 119

　Aboutsubdial ……………………… 120

How to Set the Time (Radio Signal Reception)

Settingthetime,dateanddaybyreceivingaradiosignal

… 122

Mechanismofradiosignalreception

 … 122

Automaticreceptionandmanualreception

 … 123

　Aboutreceptionconditions……… 124

Aboutradiosignalreceptionrange

… 124

Radiosignalreceptionrange：JAPAN（JJY）

 … 125

Radiosignalreceptionrange：People’sRepublicofChina(BPC)

… 126

Radiosignalreceptionrange：UnitedStatesofAmerica(WWVB)

… 127

Howtocheckthereceptionresults

　… 128

Aboutreceptionresultdisplay

　… 128

ToImproveradiosignalreception

　… 131

BSB8B54 p095-188 欧文.indd 96-97 19.11.6 11:31:27 AM

AboutThisProduct

・Keepthewatchandaccessoriesoutofthereachofbabiesandchildren.

 Careshouldbetakentoprevent a babyor a childaccidentallyswallowingthe

accessories.

 Ifababyorachildswallowsthebatteryoraccessories,immediatelyconsultadoctor,as

itwillbeharmfultothehealthofthebabyorchild.

・Immediatelystopwearingthewatchinfollowingcases.

 ○ Ifthewatchbodyorbandbecomesedgedbycorrosionetc.

 ○ Ifthepinsprotrudefromtheband

※



ImmediatelyconsulttheretailerfromwhomthewatchwaspurchasedorSEIKOCUSTOMERSERVICECENTER.

Toindicatetherisksofseriousconsequencessuchassevereinjuriesunlessthe

followingsafetyregulationsarestrictlyobserved.

・Donotremovethesecondarybatteryfromthewatch.

 ※Aboutthesecondarybattery→POWERSOURCEP.15 2

 Replacementofthesecondarybatteryrequiresprofessionalknowledgeandskill.Please

askawatchretailerforreplacementofthesecondarybattery.

 Installationofanordinarysilveroxidebatterycangenerateheatthatcancausebursting

andignition.

Handling cautions

WARNING ・Avoidwearingorstoringthewatchinthefollowingplaces.

○

Placeswherevolatileagents(cosmeticssuchaspolishremover,bugrepellent,thinnersetc.)are

vaporizing

 ○ Placeswherethetemperaturedropsbelow5°C orrisesabove35°C foralongtime

 ○ Placesofhighhumidity ○ Placesa󱐯ectedbystrongmagnetismorstaticelectricity

 ○ Dustyplaces ○ Placesa󱐯ectedbystrongvibrations

・Ifyouobserveanyallergicsymptomsorskinirritation



Stopwearingthewatchimmediatelyandconsultaspecialistsuchasadermatologistoran

allergist.

・Othercautions

○Replacementofthemetalbandrequiresprofessionalknowledgeandskill.Pleaseask

awatchretailerforreplacementofthemetalband,asthereisariskofhandornger

injuryandfearoflosingparts.

 ○ Donotdisassembleortamperwiththewatch.

○

Keepthewatchoutofthereachofbabiesandchildren.Extracareshouldbetakentoavoid

risksofanyinjuryorallergicrashoritchingthatmaybecausedwhentheytouchthewatch.

○Whendisposingofusedbatteries,followtheinstructionsofyourlocalauthorities.

 ○ Ifyourwatchisofthefoborpendanttype,thestraporchainattachedtothewatch

maydamageyourclothes,orinjurethehand,neck,orotherpartsofyourbody.

Toindicatetherisksoflightinjuriesormaterialdamagesunlessthefollowingsafety

regulationsarestrictlyobserved.

CAUTIONS

BSB8B54 p095-188 欧文.indd 98-99 19.11.6 11:31:27 AM

101

注意

AboutThisProduct

100

AboutThisProduct

1WARNING

CAUTION

Do not use the watch in scuba diving or

saturation diving.

Thevarioustightenedinspectionsundersimulatedharsh

environment,whichareusuallyrequiredforwatchesdesigned

forscubadivingorsaturationdiving,havenotbeenconducted

onthewater-resistantwatchwiththeBAR(barometric

pressure)display.Fordiving,usespecialwatchesfordiving.

Do not pour running water directly from faucet.

Thewaterpressureoftapwaterfrom a faucetishigh

enoughtodegradethewaterresistantperformanceofa

waterresistantwatchforeverydaylife.

Do not turn or pull out the crown when the

watch is wet.

Watermaygetinsideofthewatch.

※

Iftheinnersurfaceoftheglassiscloudedwithcondensationorwaterdroplets

appearinsideofthewatchforalongtime,thewaterresistantperformanceofthe

watchisdeteriorated.Immediatelyconsulttheretailerfromwhomthewatchwas

purchasedorSEIKOCUSTMERSERVICECENTER(listedontheendofabook).

Do not wear the watch while taking a bath or a sauna.

Beawareofariskthatawaterresistantwatchmaylessenitswater

resistantperformancebecauseofdeteriorationoftheadhesiveon

theglassorgasket,orthedevelopmentofrustonstainlesssteel.

Do not leave moisture, sweat and dirt on the

watch for a long time.

Steam,soaporsomecomponentsofahotspringmayaccelerate

thedeteriorationofwaterresistantperformanceofthewatch.

BSB8B54 p095-188 欧文.indd 100-101 19.11.6 11:31:28 AM

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Seiko 8B54 Manual

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