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Grand Seiko Spring Drive GMT SBGE015 Watch Hands-On | aBlogtoWatch
Seiko - Grand Seiko Spring Drive SBGE001 - This model employs Seiko's advanced Spring Drive caliber, which combines mechanical movement complexity with quartz precision, and incorporates a GMT display function. The SBGE001
Grand Seiko SBGE001 Spring-Drive GMT Review | BladeReviews.com