What to do if my Seiko ASTRON is unable to receive GPS signals?
If your Seiko Watch isn't receiving GPS signals, charge it by exposing it to light until the indicator hand points to the middle or full position.
Why does the second hand on my Seiko ASTRON Watch stop at the 45-second position during reception?
If the second hand on your Seiko Watch stops at the 45-second position before reception is completed, especially under low temperatures (0°C or less) where charging capacity and efficiency are lowered, regularly charge the watch by exposing it to light.
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 |
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