Seiko 2J31 - Page 75

75
8J41 8J42
8N51 8N65
9581 9587
7N93 9544
7740 7741 7742 7749
8J55 8J56

±10seconds

±20seconds

±10seconds

Typeofwatch
(Thefirstfourdigitsofthecaliber
numberofyourwatchEx.8J41-0AA0)
）
peryear
（
Loss/Gain
）
SB-
（
Battery
Battery
life

Approx.3years

Approx.5years
Approx.2.5years
Approx.5years
AJ
AT
AJ
AN
AJ
AN
○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.
○Theaccuracyisundertheconditionthatthewatchiswornonthewristinanormaltemperaturerange
between5℃and35℃.

○Loss/Gainisdeterminedperyear;i.e.,eachmonthdoesnotlose/gainthesamenumberofseconds
(e.g.Onemonth=2secs.,anothermonth=1sec.,etc)
○Operationaltemperaturerangeis−10℃〜＋60℃
(
14°F〜140°F
)
.