Seiko 7B24 User manual

*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.

82
1.AboutThisProduct
Handingcautions……………………… 84
Features ………………………………… 86
Displayandbuttonoperation ……… 88
HowtouseButtonB ………………… 90
Crown …………………………………… 91
2.BeforeUse
Beforeuse ……………………………… 92
Checkingthechargingstatus…… 92
Checkingthetimeanddate …… 93
3.
HowtoSettheTimeandDate(RadioSignalReception)
Settingthetimeanddatebyreceivingaradiosignal …94
Mechanismofradiosignalreception …94
Automaticreceptionandmanualreception … 95
Aboutreceptionconditions……… 96
Radiosignalreceptionrange：InJapan(JJY) …… 96
Radiosignalreceptionrange：InChina(BPC) … 97
Radiosignalreceptionrange:IntheUnitedStates(WWVB) …98
Toenablethewatchtoeasilyreceivearadiosignal …99
Environmentsinwhichitisdi󱐰culttoreceivearadiosignal  …100
Howtocheckthereceptionstatus  …102
Howtodisplaythereceptionresult  …102
4.
TimeZoneAdjustmentFunction(Selectingtransmittingstation)
Whatisthetimezoneadjustmentfunction?  …104
Featuresoftimezoneadjustmentfunction  …104
Questionsandanswersregardingtimezoneadjustmentfunction  …105
Howtosetthetimezone(Selectingtransmittingstation)  …106
Listofmajortimezonesaroundtheworld  …108
Contents

83
1
2
3
4
5
6
7
8
5.SolarChargingFunction
Aboutcharging ………………………110
Howtochargethewatch ………110
Theindicationtimeforchargingthewatch  …111
Aboutenergy …………………………112
Energydepletionforewarningfunction  …112
Powersavefunction ………………113
6.
ToPreservetheQualityofYourWatch
Topreservethequalityofyourwatch  …114
Dailycare ……………………………114
Performanceandtype ……………115
Waterresistance …………………116
Magneticresistance ……………120
Band……………………………………122
Specialclasps ………………………124
Lumibrite ……………………………129
Powersource ………………………130
Guarantee ……………………………132
After-salesservice ………………134
7.Troubleshooting
Howtoconductmanualreception(Receivingaradiosignalmanually) …136
Conditionsinwhichthewatchmaybeunabletoreceiveradiosignals  …138
Howtomanuallysetthetime …138
Howtomanuallysetthedate …140
Preliminaryposition …………………142
Thingsaroundyouwhichgeneratemagnetism  …143
Howtosetthepreliminaryposition  …144
Settingthepreliminarypositionofthedate  …144
Settingthepreliminarypositionsofthehourandminutehandsmanually  …146
Troubleshooting ………………………148
Incaseofanabnormalmovement  …156
HowtoresettheBuilt-inICsystem  …156
8.Specications
Specications …………………………162

・ 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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.
※ ImmediatelyconsulttheretailerfromwhomthewatchwaspurchasedorSEIKOCUSTOMERSERVICECENTER.
Handlingcautions
84
AboutThisProduct

・Avoidthefollowingplacesforwearingorkeepingthewatch.
○ Placeswherevolatileagents（cosmeticssuchaspolishremover,bugrepellent,thinnersetc.）arevaporizing
○ Placeswherethetemperaturedropsbelow5℃orrisesabove35℃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
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
 ○ 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.
Toindicatetherisksoflightinjuriesormaterialdamagesunlessthefollowingsafety
regulationsarestrictlyobserved.
85
AboutThisProduct

86
AboutThisProduct
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o󱐰cialstandardfrequencies
fromJapan(fromeitheroftwotransmittingstations),thePeople'sRepublicofChina,andtheUnitedStatesofAmerica.
■ RadioSignalReceivingFunction･････････････････････････ 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officialstandardradiosignals fromJapan
(from2transmittingstations),China,andtheUnitedStates(the
transmittingstationforreceivingradiosignalscanbeselectedusing
thetimezoneadjustmentfunction).
■ DisplayFunctionofRadioSignalReceptionLevel･･･････ Themovementofthesecondhandindicatestheradiosignal
receptionlevelduringradiosignalreceptionattempts.
■ DisplayFunctionofRadioSignalReceptionResults･････ Themovementofthesecondhandindicatesradiosignalreception
results(Yes/No).
→ pages94–101
→ page137
→ page102

87
AboutThisProduct
■ TimeZoneAdjustmentFunction …
(SelectingTransmittingStation)
→ pages104-109
■ SolarChargingFunction …
→pages110-111
■ EnergyDepletionForewarningFunction …
→ page112
■ PowerSaveFunction…
→ page113
■ AutomaticHandPositionAlignmentFunction …
→page142
Thiswatchcandisplaylocaltimearoundtheworldby
settingtheappropriatetimezone.Inaddition,setting
thetimezoneenablesthewatchtoreceiveofficial
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influencessuchasmagnetism,the
watchautomaticallycorrectsthehandmisalignment.

【Receptionresultconrmation】→ page102
【Manualreception】→ page136
【Timezoneadjustment】→ page106
【Manualtimeanddatesetting】→ page138
Firstclick【Manualdatesettingmode】→ page140
Secondclick【Manualtimesettingmode】→ page138
【Timezoneadjustmentmode(setting
thetimetoalocaltimeabroad)】→ page106
ButtonB
Crown
ButtonA
Minutehand
Hourhand
Secondhand
Date
Displayandbuttonoperation
88
012 ※Incase ofascrewlock typecrown,when
thecrownisunlocked,itisatthe0-click
position.
AboutThisProduct

89
ReceptionResultDisplay
【Conrmationof
receptionresult】
Y･･･
ReceptionSuccessful
 （10secondposition）
N･･･ReceptionFailed

（20secondposition）
※ "Conrmreceptionresult"
refertopage102
ReceptionLevelDisplay
※"Aboutthereceptionlevel
display"refertopage137
※Positionsofabovedisplaysmaydi󱐯erdependingonthemodel.
AboutThisProduct
【automaticreceptionand
manualreception】
H･･･
Highreceptionlevel
 （50secondposition）
L･･･ Lowreceptionlevel
  （40secondposition）
N･･･ Unabletoreceive
radiosignals
 （20secondposition）

ButtonBisrecessedinthewatchcasetopreventaccidentalinput.
Typesofbuttonsdi󱐯erdependingonthedesignofthewatch
UpperhalfofButtonBiscovered. ButtonBiscoveredexceptthe
hollowinthemiddleofthebutton.
ButtonBisrecessedinthewatchcase.
ButtonBisrecessedinthewatchcase.
PressthelowerhalfofButton
B or press the hollow in the
middleofthebuttonusingan
objectwithalongtaperedtip.
Pressthehollowinthemiddle
of the button usingan object
withalingtaperedtip.
P re s s t h e ho l l o w usi n g a n
objectwithalongtaperedtip.
HowtouseButtonB
90
AboutThisProduct