Seiko India - Astron's reputation as the world's first GPS solar watch soars to a whole new level with the 5X series. This black dial GPS Solar dual-time watch has cutting-edge features
Astron GPS Solar celebrates the 50th anniversary of the Quartz Astron. | Seiko Watch Corporation
Seiko Astron GPS Solar 5th Anniversary Limited Edition for $1,615 for sale from a Private Seller on Chrono24