Power Source - Seiko Astron 5X53 Complete User Manual

6
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 secondary 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.
bWARNING

Power Source

* 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
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.
41
ASTRON 5X53 GPS SOLAR
Time" P. 14 to check the time required for fully charging the watch.
bWARNING