The New Grand Seiko Calibre 9RA5 Spring Drive 5 Days | Slimmer, more precise and more powerful. A new Spring Drive movement marks a new beginning for Grand Seiko. The Shinshu watch
The New Grand Seiko Calibre 9RA5 Spring Drive 5 Days | Grand Seiko introduces a new generation Spring Drive calibre that is slimmer, even more precise and has a greater power reserve.
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