The newest Astron references run on Seiko’s 5X83 solar-powered, satellite-linked quartz movement. It is the latest in an ...
They were also the world’s first solar GPS watches, which means they draw their energy from light and rarely require a battery change. The timekeeping prowess of Seiko’s Astron watches is ...
The Seiko Prospex 1965 Heritage Diver is a take ... This one isn’t quite as revolutionary, but it is the world’s first GPS solar watch with its quartz powered 3X62 movement.