Grand SeikoHistorical Collection Self-Dater Spring Drive Platinum Limited Edition

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In 1964, the 2nd generation of Grand Seiko was released. Manufactured at Suwa Seikosha (now Seiko Epson), the Grand Seiko Self-Dater was the 1st model of Grand Seiko not only to use a date display, but also water resistance and to use the Zaratsu polishing technique. For the 50th Anniversary of this model, Seiko has introduced 3 Spring Drive models, and 2 quartz models to commemorate this piece as a part of their Historical Collection. Also made at their Suwa facility, Shinshu Watch Studio, these limited editions feature higher accuracy calibers, the 9R15 for Spring Drive rating at +/- 10 seconds a month, and the Quartz 9F82 with +/- 5 seconds a year, both utilizing specially selected quartz crystals to ensure higher accuracy. These pieces symbolize the "Evolution of Practicality". Caliber: 9R15 Drive system: Spring Drive Case Material: Platinum 950 Case Back: See-through screw case back