Battery change, Warning, Caution – Seiko 7T84 User Manual
Page 16: Years

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BATTERY CHANgE
The. miniature. battery. which. powers. your. watch. should. last.
approximately.3 years...however,.because.the.battery.is.inserted.at.the.
factory.to.check.the.function.and.performance.of.the.watch,.its.actual.life.
once.in.your.possession.may.be.less.than.the.specified.period...When.
the.battery.expires,.be.sure.to.replace.it.as.soon.as.possible.to.prevent.
any.malfunction...For.battery.replacement,.we.recommend.that.you.
contact.an.AUThORIZED.SEIKO.DEALER.and.request.SEIKO SR927W.
battery.
* If the yacht timer is used more than 6 hours per week, the timer is used
more than 15 minutes per day, the stopwatch is used more than 60 minutes
per day and the alarm sounds more than 40 seconds per day, the battery life
may be less than the specified period.
3
Years
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Battery life indicator
When the battery nears its end, the small second hand moves at two-
second intervals instead of normal one-second intervals. In that case,
have the battery replaced with a new one as soon as possible.
* The watch remains accurate while the small second hand is moving at
two-second intervals.
WARNING
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Do not remove the battery from the watch.
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If it is necessary to take out the battery, keep it out of the reach of children. If a
child swallows it, consult a doctor immediately.
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The battery is not rechargeable. Never attempt to recharge it, as this may cause
battery leakage or damage to the battery.
CAUTION
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Never short-circuit, tamper with or heat the battery, and never expose it to fire. The
battery may burst, become very hot or catch fire.
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