Power Source; After-Sales Service - Seiko 3B51 Instructions Manual

Power Source
The battery used in this watch is a special secondary battery, which is diff erent from ordinary batteries.
Unlike an ordinary silver oxide battery, the secondary battery does not require periodic replacement.
H owever, 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.
■ Notes on replacing the second battery
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・ W hen 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.
・ E ven when a silver oxide battery is substituted, electrical continuity
cannot be obtained.
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After-sale service
● Notes on guarantee and repair
・ C ontact the retailer the watch was purchased from or SEIKO CUSTOMER
SERVICE CENTER for repair or overhaul.
・ W ithin the guarantee period, present the certificate of guarantee to
receive repair services.
・ G uarantee coverage is provided in the certificate of guarantee. Read
carefully and retain it.
・ F or repair services after the guarantee period has expired, if the functions
of the watch can be restored by repair work, we will undertake repair
services upon request and payment.
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● Replacement parts
・ S EIKO makes it a policy to typically keep a stock of replacement parts for
this watch for 7 years. Replacement parts are those which are essential
to maintaining the functional integrity of the watch. Please keep in
mind that if original parts are not available, they may be replaced with
substitutes whose outward appearance may diff er from the originals.
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NOTICE
※ Overcharge prevention function
When the secondary battery is fully charged, the overcharge prevention function
is automatically activated to avoid further charging. There is no need to worry
about damage caused by overcharging no matter how much the secondary
battery is charged in excess of the "time required for fully charging the watch".
※ Refer to "Standard charging time" on page 99 to check the time required for fully charging the watch.
NOTICE
■ Notes on charging the watch
・ W hen charging the watch, do not place the watch in close proximity
to an intense light source such as lighting equipment for photography,
spotlights or incandescent lights, as the watch may be excessively heated
resulting in damage to its internal parts.
・ W hen charging the watch by exposure to direct sunlight, avoid places that
easily reach high temperatures, such as a car dashboard.
・ A lways keep the watch temperature under 60℃ .
● I nspection and adjustment by disassembly and cleaning (overhaul)
・ Periodic inspection and adjustment by disassembly and cleaning
(overhaul) is recommended approximately once every 3 to 4 years in order
to maintain optimal performance of the watch for a long time. According
to use conditions, the oil retaining condition of your watch mechanical
parts may deteriorate, abrasion of the parts due to contamination
of oil may advance or delay the time significantly, or the watch itself
may stop. As the parts such as gasket may deteriorate, water-
resistant performance may be impaired due to intrusion of perspiration
and moisture. Please contact the retailer from whom the watch was
purchased for inspection and adjustment by disassembly and cleaning
(overhaul). For replacement of parts, please specify "SEIKO GENUINE
PARTS." When asking for inspection and adjustment by disassembly
and cleaning (overhaul), make sure that the gasket and push pin are also
replaced with new ones.
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