Grand Seiko’s 44GS 55th Anniversary Limited Edition Spring Drive is a 1,500-piece edition inspired by the moon over the Shinshu Mountains in northern Japan where Spring Drive watches are made. When it ...
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 ...
Gear Patrol on MSN
Grand Seiko Once Again Raises the Bar for Mechanical Timekeeping
Seiko exponentially improves the accuracy of its Spring Drive movement, now measured in seconds per year, rather than month.
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