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

As an ancient technique that dates back to the 7th century, the art of making washi ... extracted from mulberry, Grand Seiko featured some red elements on the dial to depict that.

As for the watch itself, Grand Seiko says how the icy texture and colouring of the dial was inspired by the frost-covered trees of the Kirigamine Highlands to the east of the Shinshu Watch Studio ...