Power Source - Seiko ASTRON User Manual

7
TO PRESERVE THE QUALITY OF YOUR WATCH
The battery used in this watch is a special secondary battery,
which is different from ordinary batteries. Unlike an ordinary silver
oxide battery, the secondary battery does not require periodic
replacement.
The capacity or charging efficiency may gradually lower due to
long-term use or operating environment. In addition, long-term
use may shorten the charge duration due to wear, contamination,
lubricant deterioration of mechanical parts, etc. Request repair
when the performance lowers.
Notes on replacing the second battery
• Do not remove the secondary battery from the watch.
Replacement of the secondary battery requires professional
knowledge and skill. Please ask the retailer from whom the
watch was purchased for replacement of the secondary battery.
• Installation of an ordinary silver oxide battery can generate
heat that can cause bursting and ignition.

Power Source

WARNING
ASTRON 7X52 GPS SOLAR
 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 11 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 60°C.
 When the watch has not been charged for a long time
If the watch has not been charged for a long time, the watch will be
completely discharged and no longer able to be charged.
In this case, consult the retailer from whom the watch was
purchased.
40
WARNING