Seiko 1E20 - Battery;Battery Life;Accuracy

Pin
Adjustmenthole
３）Pullthepinoutofaadjustmenthole
oftheband.Slidethebandtoadjust
its length and find an appropriate
hole.Placethepinintothehole.
４）Fasten thebuckle with pressingthe
pushbuttons.
74
75
Pushbutton
１）Pressthe button onthebuckle, and
lifttoopentheclasp.
２）To adjust : Pull the pins out of the
adjustmentholesonthe band.Slide
the band to the appropriate length.
Pushthepinsintothenewholeson
theband.
CType
Adjustmenthole
Pin
Batterylifeanditsaccuracyvarydependingonthetypeofyourwatch.
Checkthecasebackofyourwatchtoidentifythetypeofwatch.
（Referto"Dailycare".）
Battery/Batterylife/Accuracy
）
Typeofwatch
(Thefirstfourdigitsofthecaliber
numberofyourwatchEx.7N01-0B40)
Approx.
2years
Approx.2years
Approx.
3years
Approx.3years
±20seconds
±15seconds
Approx.
5years
permonth
（
Loss/Gain
Operational
temperature
range

Battery
life
Battery
SB−
−10℃〜＋60℃
−5℃〜＋50℃
AB
A6
AR
AC
A5
AR
AT
AG
AF
AN

AC
AR
AW
1E20
1F21
4N21
2E20
1F20
4N20
5E21
7N82 7N83 7N89 7N01 7N07 7N08
7N00
7N21 7N22 7N32 7N33 7N42 7N43
7N35 7N47 7N48
1N01
1N00
6G28
76
77
○Thebatterylifeshownaboveisforawatchwithanewbattery.
○Thebatteryinthewatchatthetimeofpurchaseisamonitorbatteryinserted
 inthewatchatthefactoryforperformancechecks,therefore,thebattery
mayrundownearlierthantheabove-specifiedperiod.

○Whenthebatteryisexhausted,thesecondhandmovesattwo-second
intervals.(Exceptfor1N01,6G28.)
○Theaccuracyisundertheconditionthatthewatchiswornonthewrist
inanormaltemperaturerangebetween5℃and35℃.