The three movements at the heart of Grand Seiko
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9S Mechanical
One of the world's foremost mechanical movements, the culmination of high-precision micro-engineering and the attention to detail of Grand Seiko’s expert watchmakers.
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9R Spring Drive
Spring Drive is a unique movement that delivers one-second-a-day precision, using just the power of a mainspring.
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9F Quartz
The ultimate quartz movement. Caliber 9F incorporates several unique technologies that raise performance of quartz to the high standards of Grand Seiko.
