Manual Seiko 8B54 (page 4 of 12) (English)

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About dual time display

119

Equipped with the main watch and sub dial, the watch can simultaneously

indicate the local times in two regions.

Example: How to display the local time in Honolulu by the main watch,

and the local time in Japan by the sub dial.

Worldtimefunction

118

Worldtimefunction

Ｑ :WillthewatchbeautomaticallysettothelocaltimewhenitismovedtoaplaceoutsideJapanin

adi󱐯erenttimezone?

Ａ :Thewatchwillnotbeautomaticallysettothelocaltimeifitisjustmovedtoaplaceoutside

Japaninadi󱐯erenttimezone.Selectthetimezonewhereyouarewhenyouareabroad.

　Ifyouselectthetimezone,thewatchisautomaticallysettothelocaltime.

　（Thetimedi󱐯erencecanbeadjustedinincrementsof1hourbasedontheJapanStandard

Time.）

　Afterselectingthetimezone,ifitiswithinthereceptionrangeofradiosignals,youcanleave

thewatchtoreceivetheradiosignaltosetittotheprecisetime.

　（Thereceivablestandardfrequencycanbechangedbyselectingatimezone.）

Ｑ :DaylightSavingTimeinformationshouldbecontainedinastandardfrequency.Isn'titnecessary

tosetsummertimemanuallyifthetimezonewithintheradiosignalreceptionrangeisproperly

selected?

Ａ : 

SomeareasorcountriesinatimezonemaynothaveadoptedDaylightSavingTime.

　

ThereforethewatchisdesignedsothatDaylightSavingTimecanbemanuallyselected.

Q：

Maintainingthemainwatchunderhometime（timeofresidingarea）,isitpossibletoallowthesubdial

todisplaylocaltime（localtimeineachtimezonearoundtheworld）?

A：

Thesubdialcanbeadjustedtoanydiscretionarytime.　Referto"Howtosetthesubdial"onP.120.

Q & A for the world time function

Main watch: Local time (Honolulu)

Sub dial: Home time (Japan)

Japantime:10o’clock8minutes(24-hour

indicationformat)

→　AboutsubdialP.12 0

Honolulutime( －19hours):15o’clock8minutesand42seconds

Date:5th.

Dayoftheweek:Sunday

BSB8B54 p095-188 欧文.indd 118-119 19.11.6 11:31:32 AM

121

Press the Button B to set

the time.

Toadvanceoneminute

Pressthebuttononceandrelease.

Toadvance

rapidly

Keeppressingdownthebuttonforlongerthan2seconds.

Pressthebuttononceagaintostop.

ButtonB

Push the crown back.

Theoperationisnowcompleted.

Pushthe

crown

back.

※Relockthecrown.

→P.10 7

※PresstheButtonBwithyourngeror

withanobjectwithalongtaperedtip.

→P.10 6

Worldtimefunction

012

120

Pull out the crown to the rst click.

Thesecondhandrotatesuntilitpointstothe30-second

positionandstops.

Thewatchentersthetimesettingmodeforsubdial.

Boththemainwatchandthesubdialcontinuetooperate.

Pulloutthe

crowntothe

firstclick.

■ How to set the sub dial

About sub dial

・ The sub dial displays time in the

24-hour indication format.

・ Even if the time zone of the

main watch is changed, the time

indicated on the sub dial remains

unchanged.

Subdialoperatesindependentlyofthe

mainwatch.

※Unlockthe

crown.

→P.10 7

Worldtimefunction

012

BSB8B54 p095-188 欧文.indd 120-121 19.11.6 11:31:32 AM

123

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

122

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

The radio-controlled watch displays the precise time, date and day by automatically

receiving and synchronizing itself with the radio signal of an o󱐰cial standard frequency.

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.

Transmitting

Station

Cesium

AtomicClock

Radio-controlledwatch

Receiveradiosignalsthroughthe

antennainsidethewatch

↓

Analyzetimeinformation

↓

Displaythecurrenttime,dateandday

O󱐰cialstandard

frequency

■ Mechanism of radio signal reception

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

※

IfthetimezoneissettoaregionotherthanJapan,ChinaortheUnitedStates,thesignalreceptionfunctionwillnotwork.→TimeZone

DisplayandTimeDi󱐯erenceTabl eP.114

※

RadioSignalreceptionresultsdependonareceivingcondition.→Environmentsinwhichitisdi󱐰culttoreceivearadiosignalonP.13 2

※

Thiswatchisunabletoreceiveradiosignalsoutsideareceptionrange→RadiosignalreceptionrangeindicationonP.12 4

※

Whenthewatchisnotdisplayingtheprecisetime,dateanddayevenaftersuccessfullyreceivingaradiosignal→Inthiscase,referto

Troubleshooting:MisalignmentofthetimeandhandsonP.17 8andMisalignmentofthedateanddayonP.18 0 .

・Manual reception

When this watch cannot automatically receive a radio signal due to a difficult

receiving environment, it is possible to receive them arbitrarily at any time.

　→ How to conduct manual reception　P.156

・Automatic reception

This watch sets the time, date and day by automatically receiving a radio signal at a xed

time. This watch automatically receives a radio signal at 2:00 AM, 3:00 AM and 4:00 AM.

■ Automatic reception and manual reception

※Whenthewatchsuccessfullyreceivesaradiosignal,itwillstopautomaticreception.

・

Place the watch in a place where it can easily receive a radio signal such as near a window.

・While the watch is receiving radio signals, do not move it.

→ To Improve Radio Signal Reception　P.131

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125

■ 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di󱐯erentfrequency.

Fukushima(Ohtakadoya-yamatransmittingstation:40KHz)

Kyushu(Hagane-yamatransmittingstation:60KHz)

Thereceptionrangefromeachtransmittingstationis

approximately1,000km(1,000kmradiusofeachstation).

When the time zone is set to [TYO (Tokyo)], the watch can receive radio

signals of Japan.

※Iftheconditionisgoodinarangebeyond

1,000km,therecanbethecasethatthe

watchcanreceiveradiosignals.

※

Evenwithintheradiosignalreceptionrange,radio

signalreceptionmaybeobstructeddependingonthe

receptionconditionssuchasweather,geographical

features,surroundingbuildingsordirections.

→

Conditionsinwhichthewatchmaybe

unabletoreceiveradiosignalsP.132

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

124

About reception conditions

This watch can receive o󱐰cial standard frequencies of Japan (two stations), People’s Republic of China, and the United States of America.

When you set the watch to a time zone in Japan, China or the United States, the o󱐰cial standard frequencies the watch receives will be

automatically changed accordingly to the selected time zone.

→SettingtheTimeZoneP.112

Japan（JJY）

P.12 5 UnitedStates

ofAmerica

（WWVB）P.127

C h i n a（ B P C ）

　　　P.12 6

■ About radio signal reception range

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

Ohtakadoya-

yamatransmitting

station（40kHz）

Hagane-yama

transmitting

station（60kHz） 1,000km

1,000km

BSB8B54 p095-188 欧文.indd 124-125 19.11.6 11:31:33 AM

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Seiko 8B54 Manual

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