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

For Watches & Wonders 2025, the Japanese watchmaker unveils its Calibre 9RB2, which is accurate within a range of 20 seconds ...

Learn more Grand Seiko has launched a new Spring Drive movement that’s accurate to within 20 seconds per year The ...

The Grand Seiko Tentagraph, already one of the most advanced chronographs in the world, gets a 'panda' update to its ...

From Mount Iwate-inspired designs to diamond-set masterpieces, the brand highlights its dedication to artistry and ...