Always in Sync With Your World
Astron connects with GPS satellites to instantly adjust to your location. Whether you’re in Tokyo, New York, or somewhere between, the watch identifies your time zone and displays the correct time in seconds. It’s like having a personal timekeeper that follows you everywhere.
Effortless Precision
Thanks to Seiko’s advanced Caliber 3X/5X movements, Astron can shift between time zones in as little as three seconds. Three independent motors drive the hands, making the transition smooth and precise. It’s a small detail, but one that makes a big difference when you’re constantly on the move.
A Watch That Thinks Ahead
Every day, Astron quietly checks in with GPS satellites to make sure it’s perfectly accurate. If sunlight is available, it connects automatically. If not, it remembers the last successful adjustment and tries again later. You don’t have to lift a finger; Seiko Astron takes care of it.
Designed for Travelers
For those who live between destinations, the Time Transfer function is a game-changer. With a simple press of two buttons, your main dial switches from home time to local time, while the sub-dial flips to show the opposite. It’s intuitive, instant, and perfect for anyone juggling two worlds.
Powered by Light
Here’s the real magic: Astron runs entirely on solar energy. No battery changes, no interruptions. Fully charged, it keeps ticking for six months. If left in darkness, it conserves energy by slipping into sleep mode, holding onto your time data for up to two years. Wake it up with a touch of light, and it springs back to life.
Comfort Meets Innovation
Crafted from lightweight, allergy-resistant titanium, Astron feels as good as it performs. It’s durable, stress-free, and built for everyday wear — whether you’re in a boardroom, on a mountain, or crossing continents.