EXPERIENCE GPS TECHNOLOGY
Seiko Astron: the world’s first GPS solar watch which never needs a battery change -
powered by light, automatically adjusted to your time zone through the latest GPS technology.
ASTRON CALIBRE 3X
Watches powered by the Seiko in-house built 3X calibre with GPS functionality- exceptional accuracy updated remotely by GPS satellite when the wearer moves between timezones.
ASTRON CALIBRE 5X
Watches powered by the Seiko in-house built 5X calibre with advanced functionality – every component in the GPS module has been re-engineered to make it faster and more intuitive than ever. Just three seconds are needed to advance 14 hours from Tokyo to New York time, thanks to the system that moves hour, minute, and second hand independently.
