Spring Drive is a name given to a series of watch movements produced by Epson in Shiojiri. The concept of using a mainspring to power a quartz timing package was first conceived in 1977 …

2 days ago · Exploded functional map of the Spring Drive Calibre 9RA2, tracing power, regulation and display through a movement comprising 259 parts, underscoring the mechanical density …

Apr 1, 2025 · In 2004, Grand Seiko introduced the Spring Drive Caliber 9R65, which paired automatic winding and 72 hours of power reserve with a movement technology capable of a …

Aug 16, 2024 · Spring Drive is a movement technology developed by the Seiko Corporation, largely used and popularised by its higher-tier Grand Seiko brand, known for its incredible …

The Spring Drive chronograph is equipped with a column wheel for maximum stability in the switching mechanism. This eight-pillar component controls the chronograph function with error …

In 1999 Seiko released the “Spring Drive,” the world’s first watch driven by the mainspring power and controlled by quartz at the same time. The development of Seiko’s unique Spring Drive …

The history of Spring Drive and technical information of all Grand Seiko watches with Spring Drive movements.

Dec 12, 2017 · In the second installment of our three-part series in partnership with Grand Seiko, we go in-depth on the history and development of Spring Drive.

Understand Seiko Spring Drive technology. Learn how the hybrid movement combines mechanical power with electronic regulation for unique performance.

Fundamentally, Spring Drive is a hybrid technology that takes the autonomous, perpetual power capacity of an automatic movement, and melds it with the impressive accuracy of quartz.