Seiko exponentially improves the accuracy of its Spring Drive movement, now measured in seconds per year, rather than month.

There are different ways to measure timekeeping accuracy. Saying that Seiko’s most accurate watch is any Grand Seiko Spring Drive is correct because it is the brand’s mechanical movement with the ...

Today, the Astron name lives on at Seiko as the brand’s most technologically advanced line of quartz-powered timekeepers, ranking as the world’s first GPS solar watches — i.e., their movements are ...

In a small, sunlit room outside the wooded northern hamlet of Morioka, Japan, a dozen or so watchmakers wearing white coats and caps sit in monastic silence at custom-sized Iwayado wooden desks. Each ...

Quartz or manual-wound movements used to be the only option for small watches, but now brands such as Bulgari, Piaget and Chopard are putting automatic mechanisms in them. By Carol Besler Automatic ...