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

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

As well as this watch dial, it’s a pattern that is associated with edo-kiriko glassware, a form of traditional cut glass that is a popular craftwork in Japan. Inspired by the 1965 King Seiko KSK ...