Seiko S770 Instructions Manual page 17

C
C Type
1
While pressing the push button
on the both sides of the fl ap, lift
to open the clasp.
Push button
6
150
Power Source
The battery used in this watch is a special secondary battery, which is totally diff erent from ordinary silver oxide batteries.
Unlike other disposable batteries such as dry-cell batteries or button cells, this secondary battery can be used over and
over again by repeating the cycles of discharging and recharging.
However, for various reasons such as long-term use or usage conditions, the capacity or recharging effi ciency of the
secondary battery may gradually deteriorate. Worn or contaminated mechanical parts or degraded oils may also shorten
recharging cycles. If the effi ciency of the secondary battery decreases, have the watch repaired.
■ Remarks on replacing the secondary battery
6
・ Do not remove the secondary battery yourself.
・ Replacement of the secondary battery requires professional
knowledge and skill. Please ask the retailer from whom the watch
was purchased for repair.
・ Installation of an ordinary silver oxide battery can generate heat that can
cause bursting or ignition.
152
2
Pull the pins out of the adjustment
holes on the band. Slide the band
to the appropriate length. Place the
pins into the new holes on the band.
Fasten the buckle.
Buckle
Adjustment hole
Pins
NOTICE
Epd technology
・ The principal components of electronic ink are millions of tiny microcapsules, about
the diameter of a human hair. Each microcapsule contains negatively charged
white particles and positively charged black particles suspended in a clear fl uid.
・ When a negative electric field is applied, the white particles move to the top of the
microcapsule where they become visible to the user. This makes the surface appear white at
that spot. At the same time, an opposite electric fi eld pulls the black particles to the bottom
of the microcapsules where they are hidden. By reversing this process, the black particles
appear at the top of the capsule, which now makes the surface appear dark at that spot.
Microcapsule
white particles
black particles
a few dozen μｍ
※ The Electrophoretic Display may gradually deteriorate over long-term use. If you fi nd a decrease in contrast or
readability of the display, contact the retailer from whom the watch was purchased and have the Electrophoretic
Display replaced with a new one. You will be responsible for the cost of replacement of the Electrophoretic Display.
※ 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 P134 to check the time required for fully charging the watch.
■ Notes on charging the watch
・ When 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.
・ When charging the watch by exposure to direct sunlight, avoid places that
easily reach high temperatures, such as a car dashboard.
・ Always keep the watch temperature under 50℃ .
Top transparent
electrode
Bottom electrode
NOTICE
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151
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