A battery change is not necessary as it contains a solar-powered movement and has a massive 6-month power reserve (in case you ever get lost!) This Seiko watch ... as it has a 100m water ...

Where as the Astron only needs correcting if something goes wrong, and perfect accuracy only scratches the surface of what this watch can do. Seiko released the Astron GPS Solar Dual-Time Chronograph ...

in the form of the Seiko 5 Sport Custom Watch Beatmaker, but now Seiko has brought the iconic colours to the Solar Chronograph collection. Under a curved sapphire crystal glass is a vivid yellow/gold ...