Seiko 7N42 - Magnetic Field Effects; Watch Band Care

Magneticresistance
（affectofmagneticfield）
※ Thisdefectiveconditioncausedbymagnetismwillbecorrectedsoonafterthewatchis
removedfromthemagneticsource.Resetthetimeonceagainbeforeusingthewatch.
Affectedbynearbymagnetism,
aquartzwatchmaytemporarilygainorlosetimeorstopoperating.
Indicationonthecaseback Conditionofuse
Noindication
Keepthewatchmorethan10cmawayfrom
magneticproducts.
Keepthewatchmorethan5cmawayfrom
magneticproducts.
(JISlevel-1standard)
Keepthewatchmorethan1cmawayfrom
magneticproducts.
(JISlevel-2standard)
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Cellularphone(speaker)
Bag(withmagnetbuckle)
AC-poweredshaver
Portableradio(speaker)
Magneticcookingdevice
Magnetichealthbelt
Magneticnecklace
Magnetichealthmat
Magnetichealthpillow
etc
Thereasonwhyanalogue
quartzwatchisaffected
bymagnetism.
Itisbecausethebuilt-inmotorofthewatch,whichharnesses
magneticpowerandexternalstrongmagnetism,affecteachother
tostopthemotororsuppressestheturnofthemotor.
Examplesofcommonmagneticproductsthatmayaffectwatches
Metallicband
○

Moisture,sweatorsoilwillcauserustevenonastainlesssteelbandiftheyareleftforalongtime. 
○

Lackofcaremaycauseayellowishorgoldstainonthelowersleeveedgeofshirts.
○

Wipeoffmoisture,sweatorsoilwithasoftclothassoonaspossible
○

Tocleanthesoilaroundthejointgapsoftheband,wipeitoutinwaterandthenbrushit
offwithasofttoothbrush.
（Protectthewatchbodyfromwatersplashesbywrappingitupinplasticwrapetc.）
Band
(maintenanceprocedure)
Thebandtouchestheskindirectlyandbecomesdirtywithsweatordust.
Therefore,lackofcaremayacceleratedeteriorationofthebandorcauseskinirritation
orstainonthesleeveedge.Thewatchrequiresalotofattentionforlongusage.
Leatherband
○
A
leatherbandissusceptibletodiscolorationanddeteriorationfrommoisture,sweatand
directsunlight.
○

Wipeoffmoistureandsweatassoonaspossiblebygentlyblottingthemupwithadrycloth.
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Notesonskin
irritationandallergy
Skinirritationcausedbyabandhasvariousreasonssuchas
allergytometalsorleathers,orskinreactionsagainstfrictionon
dustorthebanditself.
Notesonthe
lengthoftheband
Polyurethaneband
○

Apolyurethanebandissusceptibletodiscolorationfromlight,andmaybe

deterioratedbysolventoratmospherichumidity.
○

Especiallyatranslucent,white,orpalecoloredbandeasilyadsorbsothercolors,

resultingincolorsmearsordiscoloration.
○
Washoutdirtinwaterandcleanitoffwithadrycloth.
（Protectthewatchbodyfromwatersplashesbywrappingitupinplasticwrapetc.）
○
 Whenthebandbecomeslessflexibleorcracked,replacethebandwithanewone.
Adjustthebandtoallowalittleclearancewithyourwristto
ensureproperairflow.Whenwearingthewatch,leaveenough
roomtoinsertafingerbetweenthebandandyourwrist.