In 2012 we made history with Astron, the world’s first GPS solar watch.  Using just the power of light, Astron adjusts to every time zone on Earth at the touch of a button.  In 2014 we took Astron  even further, introducing a full-function GPS solar chronograph.  Now with dual time display, Astron is simply the world’s finest GPS solar watch.

Seiko Astron GPS Solar Watches