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

From its bold new chronograph to the most precise mainspring-powered movement ever, Grand Seiko enters a new era of performance-driven horology.

Seiko’s GPS-linked Astron chronograph now comes in titanium with a crystal bezel. Every product is carefully selected by our editors. If you buy from a link, we may earn a commission. Learn more There ...

In short, the Tentagraph is a confident release from Japan’s most inspired watchmaker. For a brand so deeply associated with ...

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

Grand Seiko has created a mechanical movement capable of such precision timekeeping the company has coined its own Ultra Fine ...

Grand Seiko launches two polar-opposite Tentagraph models for 2025 ✓ The Evolution 9 SLGC007 and the wild Tokyo Lion SLGC009 ...

The SBGA211 "Snowflake," SBGA413 "Shunbun", and more celebrate the brand's Japanese artistry and watchmaking excellence.

Showdown! ✓ The Sinn T50 Titanium takes on the Seiko Prospex Marinemaster SLA081 ✓ Two serious divers ✓ Vote here! ✓ ...

Already Seiko’s highest-performing dive watch, with a 600m dive rating vetted by the Japan ... The hulking 16mm thick case, which measures 50.4mm lug-to-lug, is built from a single piece of titanium ...

the titanium watch is driven by a new movement called the Caliber 9RB2. Whereas most watches are stated as being accurate to between about two and six seconds, plus or minus, per day, Grand Seiko ...