Seiko Astron GPS Solar World Time SSE109 Work Out Caliber : H-50

Caliber : H-50

Anti-reflective sapphire crystal

Flash Alert

and currency

Sapphire Crystal and Inner Rotating Compass Ring

Seiko Astron GPS Solar World Time SSE109 Work Out Caliber : H-50Seiko Astron GPS Solar World Time SSE109 Astron is the first watch to automatically recognize all time zones on Earth. With the touch of a single button, Astron adjusts to the correct local time everywhere on the planet.* Always accurate. Seiko Astron is accurate to one second every 100,000 years, thanks to the time signal it receives from the Atomic Clocks in each GPS satellite. Astron never stops. Astron receives all the power it needs from light