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GRAND SEIKO
SLGA025
ATERA VALLEY

Using the clear, emerald-green waters of the Atera River as a motif, the dial conjures the image of a stream so clear that one can see the bottom, as well as the rich, natural harmony of summertime.

At the heart of this watch is the Spring Drive 5 Days Caliber 9RA2.

This movement provides up to 120 hours (5 days) of power when fully wound, as well as an average accuracy of ±10 seconds per month, an astounding achievement for a watch powered by a mainspring.

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