Manual Seiko 1B25 (page 1 of 22) (English)

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※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.

 Theservicemayalsobeavailableatotherretailers,however,

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

※Ifyourwatchhasaprotectiveﬁlmforpreventingscratches,make

suretopeelitoﬀbeforeusingthewatch.Ifthewatchisused

withtheﬁlmonit,dirt,sweat,dust,ormoisturemaybeattached

totheﬁlmandmaycauserust.

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.

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



···107

Radiosignalreceptionrange:China(BPC)

···108



Radiosignalreceptionrange:U.S.A.(WWVB)

···109



Radiosignalreceptionrange:Germany(DCF77)

···110



Toimproveradiosignalreception

···111

Environmentsinwhichitisdiﬃcult

toreceivearadiosignal···············112

Howtocheckthereceptionstatus

···114

Howtodisplaythereceptionresults

···114

4.SolarChargingFunction

Aboutcharging····································116

Howtochargethewatch············116

Standardchargingtime················117

Aboutenergy········································118



Energydepletionforewarningfunction

···118

Powersavefunction······················119

Howtousetheworldtimefunction

········· 120

5.WorldTimeFunction

Contents

1.AboutthisProduct

Handlingcautions·································90

Beforeuse················································94

Features····················································96

Displayandbuttonoperation

···············98

Howtousebutton·····························100

Crown······················································101

2.BeforeUse

Beforeuse·············································102

Checkingthechargingstatus···102

Checkingthetimeanddate·······103

3.

HowtoSettheTime(RadioSignalReception)

Settingthetimeanddatebyreceiving

aradiosignal········································104

Mechanismofradiosignalreception

···104

Automaticreceptionandmanualreception

···105

Receptionenvironment····················106

Radiosignalreceptionrangeindication



···106

Worldtimefunction······················· 120



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

localtimearoundtheworld)

······················· 122



Howtosetthetimediﬀerence(Howtodisplay

thelocaltimearoundtheworld)

················ 124

Timezonedisplayandtimediﬀerencetable

········ 126

Whatisatimezone?····················· 128



Q&Afortheworldtimefunction

····· 129

6.

ToPreservetheQualityofYourWatch

Dailycare···············································130

Performanceandtype······················131

Waterresistance································132

Magneticresistance·························134

Band························································136

Specialclasps·····································138

Lumibrite················································143

Powersource·······································144

After-salesservice·····························146

7.Troubleshooting



Howtoconductmanualreception

(receivearadiosignalmanually)

···148

Whenaradiosignalcannotbereceived

···150

Howtomanuallysetthetime····151

Howtomanuallysetthedate····154

Preliminaryposition···························156



Automatichandpositionadjustmentfunction

(adjustmentofpreliminarypositionsofhour,

minuteandsecondhands)

····················156



Preliminarypositionadjustmentofthedate

···157

Attrouble···············································158

Incaseofanabnormalmovement

·166

Resetthesystem(①-②)···········166

Preliminarypositionadjustmentofthedate:

adjustto1(ﬁrstday)(③-④)

···············168

Howtosetthetimezone(⑤-⑥)

···170

Setthetimeanddate···················171

8.Speciﬁcations

Speciﬁcations······································172

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Seiko 1B25 Manual

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