The Caliber 9S has change into a broad household of actions over time, as Grand Seiko has repeatedly refined the caliber, together with including GMT performance. Grand Seiko has used the 9S actions as a platform for his or her MEMS engineering strategies, which permit for insanely tight tolerances in motion making for sure key parts, and you could possibly in all probability argue that 9S actions characterize essentially the most conventional watchmaking at present practiced by the model. At present, 9S actions are universally recognized to be dependable and rock strong excessive frequency calibers that always carry out even higher than the specs would point out. Most lately, the 9S served because the springboard for the creation of Grand Seiko’s subsequent era Hello-Beat motion, the 9SA5.
Whereas it won’t be the flashiest motion in Grand Seiko’s arsenal, you may say that it’s very a lot the spine of the entire operation, and is actually price celebrating because it turns 25. Out of the gate, Grand Seiko has introduced two new watches that function a tribute to the 9S, with extra more likely to come all year long.
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