Seiko C-18 User manual

※Lengthadjustmentserviceformetallicbandsisavailableat
theretailerfromwhomthewatch was purchased. Ifyoucannot
haveyourwatchrepairedbytheretailerfromwhomthewatch
waspurchasedbecauseyoureceivedthewatchasagift,oryou
movedtoadistantplace,please contact 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.
※Ifyourwatchhasaprotectivefilmforpreventingscratches,make
suretopeelitoff before usingthewatch.Ifthe watch is used
withthefilmonit,dirt,sweat,dust,ormoisturemaybeattached
tothefilm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it.
Keepthismanualhandyforeasyreference.
1B21 KSJ1B21/BSJ1B21-1704
取扱説明書
C-18
1B21 ソーラー電波

Contents
1.AboutthisProduct
Handlingcautions·································84
Beforeuse················································88
Features····················································90
Displayandbuttonoperation ···············92
Howtousethebutton························94
Crown·························································95
2.BeforeUse
Beforeuse················································96
Checkingthechargingstatus······96
Checkingthetime·····························97
3. HowtoSettheTime(RadioSignalReception)
Settingthetimebyreceivingaradio
signal························································98
Mechanismofradiosignalreception ······98
Automaticreceptionandmanualreception ······99
Receptionenvironment····················100
Radiosignalreceptionrangeindication  ···100
Radiosignalreceptionrange:Japan(JJY)
 ···101
Radiosignalreceptionrange:China(BPC)
···102

Radiosignalreceptionrange:U.S.A.(WWVB) ···103

Radiosignalreceptionrange:Germany(DCF77)
···104

Toimproveradiosignalreception ···105

Environmentsinwhichitisdifficult
toreceivearadiosignal
····················106
Howtocheckthereceptionstatus ···108
Howtodisplaythereceptionresults ···108
4.SolarChargingFunction
Aboutcharging····································110
Howtochargethewatch············110
Standardchargingtime················111
Aboutenergy········································112

Energydepletionforewarningfunction ···112
Powersavefunction······················113
82
5. Timedifferenceadjustment(whenusingthewatchoverseas)
Timedifferenceadjustment(when
usingthewatchoverseas)·············114

Featuresoftimedifferenceadjustment
function
···············································114

Questionsandanswersregardingtime
differenceadjustmentfunction
····115

Settingthetimedifference(selectinga
radiosignaltransmittingstation)
··116
Listofmajortimedifferencesaroundtheworld 118
6. ToPreservetheQualityofYourWatch
Dailycare···············································120
Performanceandtype······················121
Waterresistance································122
Magneticresistance·························124
Band························································126
Specialclasps·····································128
Lumibrite················································133
Powersource·······································134
After-salesservice·····························136
7.Troubleshooting

Howtoconductmanualreception
(receivingaradiosignalmanually)
···138
Whenaradiosignalcannotbereceived ···140
Howtomanuallysetthetime····141
Preliminaryposition···························144

Automatichandpositionadjustmentfunction
(adjustmentofpreliminarypositionsofhour,
minuteandsecondhands)
····················144
Attrouble···············································146
Incaseofanabnormalmovement ·154
Resettingthesystem···················154
8.Specifications
Specifications······································158
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・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.
WARNING
・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.13 4

Replacementofthesecondarybatteryrequiresprofessionalknowledgeandskill.Pleaseask
theretailerfromwhomthewatchwaspurchasedforreplacementofthesecondarybattery.
Installationofanordinarysilveroxidebatterycangenerateheatthatcancausebursting
andignition.
Handlingcautions
AboutthisProduct
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・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affectedbystrongmagnetismorstaticelectricity
○Dustyplaces○Placesaffectedbystrongvibrations
CAUTIONS
・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
theretailerfromwhomthewatchwaspurchasedforreplacementofthemetalband,
asthereisariskofhandorfi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.
AboutthisProduct
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WARNING
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thiswatch.Fordiving,usespecialwatchesfordiving.
Donotpourrunningwaterdirectlyfromfaucetonto
thewatch.
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.
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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.
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.
CAUTION
AboutthisProduct
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Beforeuse
■
Makesuretokeepthewatchsufficientlycharged
Thewatchoperateswhilechargingelectricitybyconvertinglight
receivedonthedialtoelectricalenergy.Itcannotproperlyoperate
unlesstheremainingenergyissufficient.Placeorstoreinalocation
receivinglight,etc.,tosufficientlychargeelectricity.
■Theamountofenergystoredinthewatchcanbecheckedbythe
movementofthesecondhand.
→CHECKINGTHECHARGINGSTATUS P.96
■Chargingthesolarbattery
→Howtochargethewatch P.110
→StandardChargingTime P.111
AboutthisProduct
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■Toreceiveradiosignals
Thewatchautomaticallyreceives radio signals to adjustthetime
everyday.
Automaticradiosignalreceptioniscarriedoutbeforetwoandfour
o'clockduringthenight.
Duringthisperiodoftime,placethewatchinalocationthateasily
receivesradiosignalswithoutwearingitanddonotmoveit.
→ ToimproveRadioSignalReception P.105
AboutthisProduct
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■ RadioSignalReceivingFunction ･････････
→ P.98
■
DisplayFunctionofRadioSignalReceptionLevel･･･
→P.138
■
DisplayFunctionofRadioSignalReceptionResults ･･･
→ P.108
This watchadjusts thetimeand thedateprecisely byautomatically
receivingradiosignalsdaily.
Inaddition,radiosignalscanbeforciblyreceivedwithmanualoperation.
ThiswatchcanreceiveofficialstandardradiosignalsfromJapan(from
2transmittingstations),China,U.S.A. andGermany(the transmitting
stationfor receivingradiosignals canbe selectedusingthe time
differenceadjustmentfunction).
Themovementofthesecondhandindicatestheradiosignalreception
levelduringradiosignalreceptionattempts.(onlymanualreception)
Themovementofthesecond handindicatesradio signalreception
results(Yes/No).
Features
Thissolar-driveandradio-controlledwatchisequippedwitharadiosignaladjustmentfunction.
・Thewatchisoperatedby usingelectricenergywhichisconvertedfromthelight
receivedbythesolarpanel.
・Thiswatchdisplaystheprecisetimebyreceivingradiosignalsconveyingtimeinformation.
Itcanreceiveofficialstandardfrequenciesfrom Japan (from eitheroftwotransmitting
stations),thePeople'sRepublicofChina,theUnitedStatesofAmericaandGermany.
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■ TimeDifferenceAdjustmentFunction
･･･
(SelectingTransmittingStation)
→ P.114
■ SolarChargingFunction
･････････････
→P.110
■
EnergyDepletionForewarningFunction ･･･
→ P.112
■ PowerSaveFunction
･･････････････････
→ P.113
■
AutomaticHandPositionAlignmentFunction ･･･
→P.144
Thiswatchcandisplaylocaltimearoundtheworldby
settingtheappropriate timedifference.Inaddition,
settingthetimedifferenceenables thewatchto
receiveofficialstandardradiosignalstosetthetime
ifthewatchisworninaradiosignalreceptionrange.
Asolarcellunderneaththe dialconvertsanyformof
lightintoelectricalenergytochargeit.Once fully
charged,thewatchcontinuestorunforapproximately
sixmonths.
Themovementofthesecondhandindicatesthatthe
batteryshouldbecharged.
Thiswatch isequippedwith afunction whichcan
suppressenergy consumptionwhenitisleft without
receivinganadequate lightsource foracertain
lengthoftime.
Whenthehandpositionsdisplayanincorrecttimeas
aresultofexternalinfluencessuchasmagnetism,the
watchautomaticallycorrectsthehandmisalignment.
AboutthisProduct
1
91
Displayandbuttonoperation
Button
Crown
→P.94
※ Theoperationmethodofthebuttonvaries
withthefunctionsbeingused.Followthe
instructionsofeachsectionofthisbooklet.
Normalposition:
Checkingthereceptionresult P.108
Timedifferenceadjustment P.114
Manualreception P.138
Manualtimesetting P.141
Firstclick:Resettingthesystem P.154
Minutehand
Hourhand
Secondhand
AboutthisProduct
1
92
Receptionleveldisplay
Radiosignaltransmittingstationdisplay
[Manualreception]
H·········· Highreceptionlevel
(50secondposition)
L··········· Lowreceptionlevel
(40secondposition)
N·········· Unabletoreceive
radiosignals
(20secondposition)
※ Receptionleveldisplay→P.138
Display(countrywithradiosignaltransmittingstation) Displayposition
J／JJY（Japan） 9secondposition
B／BPC（China） 8secondposition
W／WWVB（ U.S.A.）53secondposition
D／DCF77（Germany） 1secondposition
※Timedifferenceadjustmentfunction→P.114
Receptionresultdisplay
[Checkofreceptionresult]
Y··········· Reception
 successful

(10secondposition)
N·········· Reception
 failed

(20secondposition)
※ Receptionresultdisplay
→P.108
※ Eachpositionofabovedisplaysmaydifferdependingonthemodel(design)ofthewatch.
AboutthisProduct
1
93

Howtousethebutton
SomemodelsmayhaveaButtonwhichisrecessedinthewatchcase
topreventaccidentalinput.ShapeoftheButtondiffersdependingon
thedesignofthewatch.
Upperhalfof theButton
iscovered.
Pressthe lowerhalfof the
Buttonor pressthe hollow
inthemiddleusinganobject
withalongtaperedtip.
TheButtonisrecessedin
thewatchcase.
Pressthehollowinthemiddle
usinganobjectwithalong
taperedtip.
TheButtoniscoveredexcept
thehollowinthemiddle.
Pressthe hollowusingan
objectwithalongtaperedtip.
AboutthisProduct
1
94
Therearetwotypesofcrown,anormalcrownandascrew-locktypecrown.
Pleasecheckthetypeofthecrownofyourwatch.
The
crown
turns.
Thecrown
doesnotturn.
(Itcannotbe
turnedany
further.)
While
pressing
thecrown
in,turn
itinthe
direction
indicatedby
thearrow.
※ Ifyourwatchhasascrew-locktypecrown,thecrownscrewsintothewatchtopreventmalfunctionandincreasewaterresistance.
※Becarefulnottoscrewthecrowninbyforceasitmaydamagetheslotsofthecrown.
Normalcrown
Screw-locktypecrown
Crown
Pulloutthecrownandoperateit.
Unlockthecrownbeforeoperatingit. Afteroperating
thecrown,lockit.
Screw
Whilepressingthe
crownin
Unscrew
AboutthisProduct
1
95
Beforeuse
Whenthemovementofthesecondhandshowsanenergydepletionstate,thebatteryrequirescharging.
Thesecondhand
movesatone-
secondintervals.
Thesecondhand
movesattwo-
secondintervals.
Thesecondhand
movesatfive-
secondintervals.
Thesecondhand
isstopped.
Thewatchis
sufficientlycharged.
※  Ifthesecondhanddoesnotmoveatone-secondintervalsevenafterfullychargingthebattery→ ChargingthesolarbatteryinAtTroubleonP.148
Thechargedenergyisdepleted.
→P.112
Thepowersavefunctionisactivated. → P.113
Checkthemovementsofthesecond hand
afterreleasingthePowerSave
mode.
Theenergystoredinthewatchrunslow.
Chargethe
battery
sufficiently.
Howto
Chargethe
Watch
→P.110
1Checkingthechargingstatus
2
BeforeUse
96
Checkingthetime
2
※  Thehandsofthiswatchcannotbemovedbyturningthecrown.Sowhen
adjustingthetime,refertothefollowingpagesregardingtheprocedures.
Whenthetime
arecorrect
Whentheradiosignal
canbereceived
Settingthetimeby
receivingaradiosignal
→P.138
Whenaradiosignal
cannotbereceived
Manuallysetthetime
→P.141
Usethewatch
withoutadjustment.
Whenthe
timeare
incorrect
Radiosignalreceptionrangeindication →P.100
Environmentsinwhichitisdifficulttoreceivearadiosignal →P.106
Howtosetthe
timedifference
(Selectinga
radiosignal
transmitting
station)
→P.116
2
BeforeUse
97

Radio-controlledwatch
Receiveradiosignals
throughtheantenna
insidethewatch
↓
Analyzetime
information
↓
Displaythecurrent
Time
Theradio-controlledwatchdisplaysthe precise Time byautomaticallyreceivingand
synchronizingitselfwiththeradiosignalofanofficialstandardfrequency.
Transmitting
Station
Cesium
AtomicClock
■Mechanismofradiosignalreception
Settingthetimebyreceivingaradiosignal
Timesignaltransmittedbyastandardfrequencyisbasedonasuperaccurate"Cesium
AtomicClock"thatmayhavea1secondlossorgainperonehundredthousandyears.
Officialstandard
frequency
HowtoSettheTime(RadioSignalReception)
3
98
※ Whenthetimedifferenceissetforaregionotherthanradiosignalreceptionrange,aradiosignalcannotbereceived.
 Checkthesettingofthetimedifference→Settingthetimedifference(selectingaradiosignaltransmittingstation) P.116
※Radiosignalreceptionresultsdependon areceivingenvironment.→Environmentsinwhichitis
difficulttoreceivearadiosignal P.106
※Thewatch cannotreceivearadiosignal outsidetheradio signalreceptionrange.→Radiosignal
receptionrangeindication P.100
※Whenthewatchdoesnotdisplaythecorrecttimeevenaftersuccessfullyreceivingaradiosignal.
→Troubleshooting:Misalignmentofthetimeandhands P.150
・ Manualreception
Thiswatchcanreceivearadiosignalarbitrarily atanytime otherthanthe
automaticreceptionmode.
 →Howtoconductmanualreception P.138
・ Automaticreception

Thiswatchsetsthetimebyautomaticallyreceivingaradiosignalatafixedtime.
 Thiswatchautomaticallyreceivesaradiosignalbefore2:00a.m.and4:00a.m.
■Automaticreceptionandmanualreception
※Whenthereceptionissuccessful,thewatchfinishestheautomaticreception.
・
Placethewatchinaplacewhereitcaneasilyreceivearadiosignal(bythewindow,etc.)
・D onotmovethewatchduringtheradiosignalreception.
→ToImproveRadioSignalReception P.105
HowtoSettheTime(RadioSignalReception)
3
99
Receptionenvironment
ThiswatchreceivesstandardradiosignalsfromJapan(2stations),China,U.S.A.andGermany.
Aradiosignaltransmittingstationcanbeselectedbytimedifferenceadjustmentfunction.
→Settingthetimedifference(selectingaradiosignaltransmittingstation)P.116
Japan(JJY)
P.101
China(BPC)
P.102
U.S.A.
(WWVB)
P.103
Germany
(DCF77)
P.104
■Radiosignalreceptionrangeindication
HowtoSettheTime(RadioSignalReception)
3
100
Ohtakadoya-
yamatransmitting
station（40kHz）
1,000km
1,000km
■Radiosignalreceptionrange:Japan(JJY)
JJYisoperatedbytheNationalInstitute
ofInformationandCommunications
Technology（NICT）.
JJYistransmittedfromtwostationsin
Japan.Eachstation transmitsJJYina
differentfrequency.
Fukushima（Ohtakadoya-yama
transmittingstation:40KHz）
Kyushu（Hagane-yamatransmitting
station:60KHz）
※NICT： NationalInstituteofInformationand
CommunicationsTechnology
※
Whetherthewatch succeedsinreceiving
radiosignalsornotdependsonthereceiving
conditions.
 Referto"About receptionenvironment"on
P.106.
Thereception rangefromeach transmittingstationis approximately
1,000km（1,000kmradiusofeachstation）.
Hagane-yama
transmitting
station（60kHz）
HowtoSettheTime(RadioSignalReception)
3
101

■
Radiosignalreceptionrange:thePeopleʼsRepublicofChina(BPC)
BPCisoperatedbyNTSC.
ShangqiuNational TimeService
Center
Frequency:68.5kHz
※NTSC：N ationalTimeServiceCenter
※Thewatch maybeabletoreceiveradio
signalsoutsideareception rangeifthe
receivingconditionsarefavorable.
※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).
Environmentsinwhichitis difficultto
receivearadiosignalonP.10 6.
Thereceptionrange fromthetransmittingstation isapproximately
1,500km(1, 500kmradiusofthetransmittingstation).
1,500km
ShangqiuNational
TimeServiceCenter
（68.5kHz）
HowtoSettheTime(RadioSignalReception)
3
102
WWVBisoperatedbyNIST.
FortCollinstransmittingstation
Frequency:60KHz
※NIST：N ationalInstituteofStandardsand
Technology
※Thewatch maybeable toreceiveradio
signalsoutsidea reception rangeifthe
receivingconditionsarefavorable.
※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).
Environmentsinwhichitisdifficulttoreceive
aradiosignalonP.10 6.
■ Radiosignalreceptionrange:theUnitedStatesofAmerica(WWVB)
FortCollins
transmittingstation
Frequency(60KHz)
1,500km
Thereception rangefromthetransmittingstation isapproximately
1,500km(1,500kmradiusofthetransmittingstation).Thereare
fourtimedifferenceswithinthereceptionrange.
HowtoSettheTime(RadioSignalReception)
3
103
■Radiosignalreceptionrange:Germany(DCF77)
DCF77isoperatedbyPTB.
SoutheasternFrankfurt
Mainflingentransmittingstation:77.5kHz
※PTB：Physikalisch-TechnischeBundesanstalt
※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).
Environmentsinwhichitisdifficulttoreceivea
radiosignalonP.106.
1,000km
Thereception rangefromthetransmittingstationisapproximately
1,000km(1,000kmradiusofthetransmittingstation)
Therearethreetimedifferenceswithinthereceptionrange.
Mainflingen
transmitting
station(77.5kHz)
HowtoSettheTime(RadioSignalReception)
3
104
■Toimproveradiosignalreception
※Ifthebuttonorcrownisoperatedwhilethewatchis
receivingaradiosignal,thereceptionwillbecancelled.
・ Placethewatchinaplacewhereitcaneasilyreceivearadiosignalsuchasnearawindow.
※Locationsoftransmittingstations→RadioSignalReceptionRangeIndicationP.100
Antenna
・Donotmovethewatchwhileitisreceivingradiosignals.
Toenhancethereceptionofradiosignals,donotmovethewatchordonot
changetheorientationofthewatchwhileitisreceivingradiosignals.
Theantennaisembeddedatthe8o'clockpositionofthewatch.Turningthe
antennatowardtheoutsideofawindowor thedirectionfacingtransmitting
stationshelpsimproveradiosignalreception.
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■Environmentsinwhichitisdifficulttoreceivearadiosignal
・Close tohomeelectrical
appliancessuch as TV's,
refrigeratorsorairconditioners
・Close toOAdevisessuch
asmobile phones, personal
computersorfaxmachines
・Close tosteeldesksor other
furnituremadeofmetal
・In placesgenerating
radiointerference,
suchasconstruction
sitesorplaces with
heavytraffic.
・Close tooverhead
powerlines, TV
stations,traincables.
・Insideabuilding,betweentall
buildings,underground.
・Insideavehicle,train,orairplane
Avoidputtingthewatch
insuchplaceswhenit
receivesradiosignals.
HowtoSettheTime(RadioSignalReception)
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CAUTION
・Thewatchmaydisplaythewrongtimeifitfailstoreceiveradiosignalsproperlybecause
ofinterference.Thewatchmayalsofailtoreceiveradiosignalsproperlydependingonthe
locationorradiowavereceivingconditions.Inthiscase,movethewatchtoanotherplace
whereitcanreceiveradiosignals.
・Whenthewatchisoutofreceptionrange,itsaccuratequartzmovement(loss/gain:±
15secondspermonthonaverage)willcontinuetokeepthetime.
・Thetimesignaltransmissionmaybestoppedduringmaintenanceofthefacilitiesofthe
(each)transmittingstationorbecauseofalightningstrike.Insuchacase,seethe(each)
station'swebsiteforfurtherinformationorcontactSEIKOCUSTOMERSERVICECENTER.
・Websitesoftransmittingstations(asofJanuary2014)
Japan:NICT(JapanStandardTimeGroup)http://www.jjy.nict.go.jp/
China:NTSC http://www.ntsc.ac.cn
U.S.A.:NIST http://www.nist.gov/physlab/div847/grp40/wwvb.cfm
Germany:PTB http://www.ptb.de/indexen.html
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Thesecondhandindicatesthelatestreceptionresults(Yes/No)ofaradiosignalforfiveseconds.
※ IftheButtonispressedafterfivesecondshaveelapsedorwhilethesecond
handismovingtodisplaythereceptionresults,thereceptionresultsdisplay
functioniscancelledandthewatchreturnstotheTIMEdisplaymode.
■Howtodisplaythereceptionresults
PresstheButtononceand
thenreleaseit.
1
Howtocheckthereceptionstatus
※WhentheButtoniskeptpressed,thewatch
startsmanualreception.
Press
theButtononce
andthen
releaseit.
Ifareceptionwassuccessful:
ThesecondhandpointstoY
(Yes:the10-
secondposition)
Ifareceptionhasfailed:The
secondhandpointstoN
(No:the20-second
position)
※ TopresstheButton,
useanobjectwitha
longtaperedtip.
P.94
Thesecondhandindicatesthereceptionresults.
Checkifthereceptionwassuccessful
(withinfiveseconds.)
2
HowtoSettheTime(RadioSignalReception)
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108
・ Ifyouusethewatchin aplaceorregion outsidetheradio signalreceptionrangeorwhenthe
watchcannotsuccessfullyreceiveradiosignals,manuallysetthetime.
Howtomanuallysetthetime →P.141
Ifreceptionhasfailed:ThesecondhandpointstoN.
・ Placethewatchinaplacewhereitcaneasilyreceivearadiosignal,orchangeitsdirection.
Evenwithintheradiosignalreceptionrange,thiswatchmayfailtoreceivearadio
signaldependingonthecondition（duetotheinfluenceofweather,geographical
features,buildings,ordirection）.→Inthiscase,refertoEnvironmentsinwhichitis
difficulttoreceivearadiosignalonP.106.
Thiswatchisunabletoreceiveradiosignalsoutsideareceptionrange→Radio
signalreceptionrangeindicationonP.100
・ Makesurethatthetimedifferenceiscorrectlyselectedbeforeattemptingradiosignalreception.
IfthetimedifferenceissettoaregionotherthanJapan,China,U.S.A.orGermanythesignalreception
functionwillnotwork.Checkthetimedifferencesetting→HowtoselectthetimedifferenceonP.116
・ Attempttoreceivearadiosignalinadifferenttimeperiod（Inthecaseofmanualreception）.
Receivingenvironmentsdifferaccordingtotimeperiodsevenatthesameplace.
Duetoradiosignalcharacteristics,thewatchisabletoeasilyreceiveradiosignalsduringnighttimehours.
・ Aradiosignalhasbeenreceivedsuccessfully.Usethewatchwithoutanyadjustments.
※
Whenthewatchisnotdisplayingtheprecisetimeevenaftersuccessfullyreceivingaradiosignal
→Inthiscase,refertoTroubleshooting:MisalignmentofthetimeandhandsonP.150
Ifareceptionwassuccessful:ThesecondhandpointstoY
HowtoSettheTime(RadioSignalReception)
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■Howtochargethewatch
Aboutcharging
Exposethedialtolighttochargethewatch.
※Whenchargingthewatch,makesurethatthewatchisnotheatedtoahightemperature.(The
operationaltemperaturerangeisbetween−10ºCand+60ºC.)
※Whenfirstusingthewatchor startingtouse thewatchafterithasstoppedbecauseofthe
energydepletion,sufficientlychargethewatchreferringtothetableonthepageattheright.
Toensureoptimalperformanceofthewatch,makesure
thatthewatchiskeptsufficientlychargedatalltime.
Underthefollowingsituations,theenergyofthewatchis
likelytobedepleted,resultinginstoppageofthewatch.
・Thewatchisconcealedunderasleeve.
・
Thewatchisusedorstoredunderconditionswhereitcannotbeexposedtolightforalong time.
SolarChargingFunction
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110
Illumination
lx(LUX)
Light
source
Condition
(Example)
Fromthestatewherethe
watchisstopped(notcharged)
Inthestatewherethehand
moves(thewatchischarged)
Tofully
charged
To1secInterval
movementissecured
Tomovefor
1day
700 Fluorescentlight Generaloffices −− 5h
3,000
Fluorescentlight 30W20cm 200h 5h 1.5h
10,000
Fluorescentlight 30W5cm 60h 1h 15min
Sunlight Cloudyday
100,000 Sunlight
Sunnyday (Under
thedirectsunlight
onasummerday)
24h 30min 3min
ThefiguresofTimerequiredforchargingthewatchtostartmovingatone-secondintervalsare
estimationsoftimerequiredtochargethestoppedwatchbyexposingittolightuntilitmovesat
steadyone-secondintervals.Evenifthewatchispartiallychargedforashorterperiod,thewatch
willresumeone-second-intervalmovement.However,itmayshortlyreturntotwo-second-interval
movement.Usethechargingtimeinthiscolumnasaroughguideforsufficientchargingtime.
※Thesecondhandmovementindicatestheremainingamountofenergy.
"CHECKINGTHECHARGINGSTATUSBYTHEMOVEMENTOFTHESECONDHAND" P.96
※Therequiredchargingtimeslightlyvariesdependingonthemodelofthewatch.
■Standardchargingtime
Foranapproximatetimerequiredtochargethewatch,refertothetablebelow.
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Aboutenergy
■Energydepletionforewarningfunction
Theenergydepletionforewarningfunctionisactivatedwhenthe
energystoredinthewatchrunslow.Insuchacase,thesecondhand
movesattwo-secondintervals.Ifthewatchcontinuestobeinthe
state oftwo-secondintervalmovement,thewatchswitchestofive-
secondintervalmovement,followedbyacompletelystoppedstate.
Iftheenergydepletionforewarningfunctionisactivated,chargethe
watchsufficiently.
Howtochargethewatch···························· P.110
Standardchargingtime······························· P.111
※Neitherthebuttonsnorthecrowncanbeoperatedwhilethesecondhandmovesattwo-secondor
five-secondintervals(thisisnotamalfunction).
※Whilethesecondhandmovesatfive-secondintervals,thehourhandstopoperating.
※Whilethesecondhandmoves attwo-second andfive-secondintervals,the watchisunable to
receiveradiosignalsautomatically.Afterthewatchis chargedsufficientlyandthesecondhand
returnstonormalone-secondintervalmovement,conductthemanualreceptionofradiosignalsto
setthewatchtothecorrecttime.(RefertoAutomaticReceptionandManualReceptiononP.99.)
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Thiswatchisequippedwithapowersavefunctionwhichcansuppressenergyconsumption
whenitisleftwithoutreceivinganadequatelightsourceforacertainlengthoftime.
※Therearetwotypesofpowersavemode.
PowerSave1 PowerSave2
Condition
Whenthewatchisexposedtoastatewithoutreceiving
anadequatelightsourcefor72hoursorlonger.
Whenthe watchisin aninsufficient
chargingstateforalongtime.
Situation
Thesecondhand
stopspointingatthe
15-secondposition,
andthehourand
minutehandsalso
stop.
Thewatchconducts
automaticradio
signalreceiving.
Thesecondhand
stopspointingatthe
45-secondposition,
andthehourand
minutehandsalso
stop.
Thewatchdoesnot
conductautomatic
radiosignalreceiving.
Howtohandle
thesituation
Whenthewatchisexposedtoanadequatelightsourceforfivesecondsorlonger,
itdisplaysthecurrenttimeagainafterthesecondhandisrapidlyadvanced.
Aftersufficiently chargingthebattery, set
thewatchforthecurrenttime,ifnecessary.
PowerSave2
※
Whilethewatchisbeingcharged,thesecondhandmovesatFive-secondIntervals.
 DuringtheFive-secondIntervalMovement,neitherthebuttonsnorthecrowncanbeoperated.
※  IfthePowerSave2modeisprolonged,thestoredpoweramountdropsandtheinternalcurrenttimeinformationstoredwillbelost.
 Whenthewatchreturnstoitsnormalmovementofone-secondintervalaftersufficientlychargingthebattery,setthecurrenttimeby
receivingaradiosignal.(RefertoAutomaticReceptionandManualReception→P.99)
■Powersavefunction
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Timedifferenceadjustment(whenusingthewatchoverseas)
■ Featuresoftimedifferenceadjustmentfunction
・  Setthe timedifferenceinthetime difference
adjustmentmodetodisplayanoverseaslocaltime.
 Thewatchcandisplayanoverseaslocaltimeinonehourunits.
ThetimedifferenceissetbasedonUTC(CoordinatedUniversalTime).
TherangeoftimedifferencesaroundtheworldbasedonUTCisfrom
−11hoursto+13hours.
・  Inthetime differenceadjustmentmode, thetime
differencebasedon UTC(CoordinatedUniversal
Time)isdisplayedbythepositionofthesecondhand.
Operatethe buttonsto pointthesecond handto the
desiredpositionforsettingofthetimedifference.
・  Aradiosignaltransmittingstationisselected
bysettingthetimedifference.
Examples: WhenusingthewatchinJapan,setthesecondhandtothenine
secondposition:TokyotoreceivearadiosignalfromJapan.
 Whenusing thewatchinChina,set thesecond handtothe
eightsecondposition:Beijing.
Whensetting thetimedifference fora regionotherthan theradio signal
receptionranges,theradiosignalreceptionfunctionwillnotwork.
→ Settingthetimedifference P.116
→ Listofmajortimedifferencesaroundtheworld P.118
0secondposition:UTC
Denver(-7)
：WWVB
Berlin(+1)
：DCF77 Beijing(+8)
：BPC
Tokyo(+9)
：JJY
１
8
9
53
−11
13
<Howtoreadthesecondhandpositionandtime
difference(radiosignaltransmittingstation＞
※ ThenumbersinparenthesisaretimedifferencesbasedonUTC.
※ Whensettingthesecond
handtothe 52‒55sec-
ondposition, theradiosig-
naltransmittingstationof
U.S.A.(WWVB)isselected.
※ Whensettingthe
secondhandto0-
1secondposition,
theradio signal
transmittingstation
ofGermany(DCF77)
isselected.
5
Timedifferenceadjustment
(whenusingthewatchoverseas)
114
■ Questionsandanswersregardingtimedifferenceadjustmentfunction
Ｑ：WhenreturningtoJapanfromoverseas,isthetimeautomaticallysettoJapantime?
Ａ：Justmoving cannotadjust thetimeto Japantime.Aftersetting thetime
difference,radiosignalreceptionisnotperformed.WhenwearingawatchinJapan,
settoJapantimebyuseofthetimedifferenceadjustmentfunction.
Ｑ：
Thehandsstopduringoperationoftimedifferencesetting,therefore,doestimelagoccur?
Ａ：Theinternalcircuitstoresthetime,therefore,notimelagoccurs.
Ｑ： Whenatimedifferenceforregionsoutoftheradiosignalreceptionrangeisset,the
watchwillnotreceivearadiosignal.Howistheaccuracyofthewatchatthattime?
Ａ：Thewatchhasanaccuracyofanormalquartzwatchinthatcase.(Monthlyrate:±
15seconds)
Ｑ：
Howisadjustmentmadetoalocaltimewithatimedifferenceof15minutesor30minutes?
Ａ： Thetimecanbeadjustedona1hourbasisbyuseofthetimedifferenceadjustmentfunction.
 Whenadjustingto alocaltimewith atimedifference of15minutesor30 minutes,please
refertothe"Howtomanuallysetthetime"on P.141.
5
Timedifferenceadjustment
(whenusingthewatchoverseas)
115
Settingthetimedifference(selectingaradiosignaltransmittingstation)
Continueto press thebutton(for8
seconds),andwhenthesecondhandstarts
tomovecounterclockwise,releaseit.
※ Pressthebuttonwitha
pointedobject.→P.94
1
※ Thesecondhandmaymovetothezerosecondposition3
secondsafterpressingthebutton.Continuetopressit.
※ Whenanomovementstateofthesecondhandiskeptforoneminuteor
more,thewatchautomaticallyswitchestothetimedisplaymode.When
thewatchswitchestothetimedisplaymode,re-attemptoperation.
※  Whenthepressingtimeisshort,thewatchmayswitch
tothemanualreceptionmode.
Thewatchswitchestothetimedifferenceadjustment
modeandstopsbythetimedifferencesetcurrently
Pressthe
buttonfor
8secondsand
thenrelease
it.
Press
the
button.
Pressingthebuttononce
movesthesecondhand
byonesecond(onehour).
Whenthebutton ispressedonce,the
secondhandmovesbyonesecond(+1hour)
clockwisetoadvancethetimebyonehour.
Thepositionofsecondhandindicatesthetimedifference.
Refertothefiguresattherighttosetthetimedifference.
※Alsowhilethewatchis working,the
secondhandcanbemoved.
Pressthebuttontosetthe
secondhandtothelocal
timedifferenceofadesired
area.
2
5
Timedifferenceadjustment
(whenusingthewatchoverseas)
116
Waitforoneminute afterthe
hourhandstops.
(Thetimedifferenceadjustment
modeisfinished.)
Afteroneminute,thewatch
switchestothe one-second
intervalmovement.
3
※Whensettingthedaylightsavingtime(DST),add
onehourtothetimedifferenceofadesiredarea.
※
  Pressingthebutton whenthesecondhandpoints tothe
13secondposition(+13hoursfromUTC),thesecondhand
movestothe49secondposition(−11hoursfromUTC).
Theradiosignaltransmittingstation can bechangedby
settingthetimedifference.Whensettingatimedifference
forregionsotherthantheradiosignal receptionranges,
theradiosignalreceptionfunctionwillnotwork.
Listof majortime
differencesaround
theworld P.118
Inother
countries
InJapan InChina
%3&
--<
%3&
--<
Setthesecond
handto the 9
secondposition.
Setthesecond
handto the 8
secondposition.
5
Timedifferenceadjustment
(whenusingthewatchoverseas)
117