The Grand Seiko Spring Drive is a mechanical movement exclusive to the Japanese watch company. It mimics the accuracy and operation of a quartz movement without a secondary power source. It was a ...

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

Grand Seiko’s entire ethos can be summed up in one watch: the SBGA211 Snowflake. Everything about it is impeccably refined, from the caliber 9R65 Spring Drive movement to the Zaratsu polishing, but it ...

From the ubiquitous 4R36 to the cutting-edge Grad Seiko Spring Drive, Seiko has led the way in affordable reliability and advancing timekeeping precision. Seiko is one of the most beloved watch brands ...

We wore these new limited-edition Spring Drive models from Grand Seiko ahead of their release, and the dials struck us as thoroughly astounding. This is not a huge surprise, as Grand Seiko has put the ...