Grand Seiko USA on Instagram: "Assembled by the skilled artisans of the Shinshu Watch Studio, in Nagano Prefecture, Caliber 9RA2 is a new generation Spring Drive movement. It is engineered to run
![Grand Seiko USA on X: "Caliber 9RA2 takes Spring Drive technology to a new level of excellence, opening a new era in the history of Grand Seiko. The movement delivers a 5-day Grand Seiko USA on X: "Caliber 9RA2 takes Spring Drive technology to a new level of excellence, opening a new era in the history of Grand Seiko. The movement delivers a 5-day](https://pbs.twimg.com/media/E-s7UfEX0AAYAKx.jpg)
Grand Seiko USA on X: "Caliber 9RA2 takes Spring Drive technology to a new level of excellence, opening a new era in the history of Grand Seiko. The movement delivers a 5-day
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