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Classic Designs with Grand Seiko's High Precision Quartz Movement - GS9 Club | Grand Seiko : GS9 Club | Grand Seiko
Seiko - 【Grand Seiko High Precision Quartz Caliber 9F62】 - Accuracy of +-10 seconds a year. - Imagine the watch whose accuracy is only plus-minus 10 seconds a year. It is Grand
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