Seiko ASTRON Handy Manual

7 8
Check the charging status
Indicator
display
Charging
status
Solution
full
Reception is
allowed.
middle
Reception is
allowed.
Indicator display Movement of second hand Charging status Solution
1-second
interval
movement
low
The watch
is unable to
receive GPS
signals, but
has energy
to operate.
Charge the watch at least until
the indicator hand points to
“middle” so that the watch is
able to receive GPS signals.
2-second
interval
movement
The watch
is unable to
receive GPS
signals, and
does not
have energy
to operate.
(The energy
depletion
forewarning
function is
activated.)
Continue to charge the watch
at least until the indicator hand
points to “middle” so that the
watch is able to continuously
operate and receive GPS signals.
5-second
interval
movement
The charging status is
not displayed for the
in-flight mode ( ).
Reset the in-flight mode ( ) as
long as possible.
When the indicator hand points
to “low,” charge the watch.
3
The indicator hand position shows whether this watch is able or unable to receive GPS signals.
In addition, for the low charging state, the movement of the second hand shows the energy depletion state in
further detail.

GPS signal reception requires a lot of energy. It is necessary to regularly charge the watch by exposing it to light.
Reception is
allowed
Reception is
not allowed

Seiko ASTRON Specifications

Frequency

frequency of crystal oscillator	32, 768 Hz
loss/gain (monthly rate)	±15 seconds

Operating Environment

operational temperature range	−10°C to +60°C
normal temperature range	5°C to 35°C

Power

power source	Secondary battery, 1 piece
duration of operation (fully charged)	Approximately 6 months
duration of operation (power save activated)	Approximately 2 years