Seiko C-22 User Manual

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
different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.108.
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
103
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differenceadjustmentfunction.
→Settingthetimedifference(selectingaradiosignaltransmit
tingstation)P.118
Japan
(JJY)
P.
103
China
(BPC)
P.
104
U.S.A.
(WWVB)
P.
105
Germany
Germany
Germany
Germany
Germany
(DCF77)
P.
P.
P.
106
■Radiosignalreceptionrangeindication
How
to
Set
the
Time
(Radio
Signal
Reception)
3
102
※ Whenthetimedifferenceissetforaregionotherthanradiosignalreceptionrange,aradiosignalcannotbereceived.
  Checkthesettingofthetimedifference→Settingthetimedifference(selectingaradiosignaltransmittingstation) P.118
※Radiosignalreceptionresultsdependona receivingenvironment. →Environmentsinwhichitis
difficulttoreceivearadiosignal P.108
※Thewatchcannotreceivearadiosignaloutsidethe radiosignalreceptionrange. →Radiosignal
receptionrangeindication P.102
※Whenthewatchdoesnotdisplaythecorrecttimeanddateevenaftersuccessfullyreceivingaradio
signal.→Troubleshooting:Misalignmentofthetimeandh a n d s P.15 4 , Misalignmentofd a te P.15 6
・ 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.140
・ Automaticreception

Thiswatchsetsthetimeanddatebyautomaticallyreceivingaradiosignalatafixed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finishestheautomaticreception.
・ Placethewatchinaplacewhereitcaneasilyreceivearadiosignal(bythewindow,etc.)
・Donotmovethewatchduringtheradiosignalreception.
→ToImproveRadioSignalReception P.107
HowtoSettheTime(RadioSignalReception)
3
101
Radio-controlledwatch
Receiveradiosignals
throughtheantenna
insidethewatch
↓
Analyzetime
information
↓
Displaythecurrent
TimeandDate
Theradio-controlled watchdisplays theprecise Timeand Datebyautomatically
receivingandsynchronizingitselfwiththeradiosignalofanofficialstandardfrequency.
Transmitting
Station
Cesium
AtomicClock
■Mechanismofradiosignalreception
SettingtheTimeandDate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.
Officialstandard
frequency
HowtoSettheTime(RadioSignalReception)
3
100

Seiko C-22 Specifications

General

Brand	Seiko
Model	C-22
Category	Watch
Language	English