Seiko 7B24 - Page 51

・Powersource
Thebatteryusedinthiswatchisaspecialsecondarybattery,whichisdi󱐯erentfromordinarybatteries.
Unlikeanordinarysilveroxidebattery,thesecondarybatterydoesnotrequireperiodicreplacement.
However,ifthesecondarybatteryischargedordischargedrepeatedlyoveranextendedperiodoftime,
itslifemayshorten.（Thisconditionchangesdependinguponusageconditionandstorageenvironment.）
Thesecondarybatteryisanenvironmentallyfriendly,cleanenergystoragedevice.
・ Whenreplacing the secondarybattery, makesure thattheexclusive
secondarybatteryforthis watchisused.Installationof anordinarysilver
oxidebatterycangenerateheatthatcancauseburstingorignition.
・ Even whenasilveroxidebatteryissubstituted,electricalcontinuity
cannotbeobtained.
NOTICE
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ToPreservetheQualityofYourWatch