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 ...

Grand Seiko has debuted a new iteration of its automatic Spring Drive movement with precision that rivals high-accuracy ...

Grand Seiko has revealed what it claims to be the most accurate mainspring-powered watch ever made at Watches and Wonders.

Grand Seiko has revealed what it claims to be the most accurate mainspring-powered watch ever made at Watches and Wonders. Called the SLGB003 and part of the new Evolution 9 Collection ...

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 ...