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Un nuovo Grand Seiko GMT con movimento al quarzo 9F86 | La Clessidra dal 1945 | La più antica rivista italiana di orologi
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Vol.9 The Quartz GMT caliber. A breakthrough after 25 years.: Caliber 9F86, the uncompromising GMT watch caliber | The 9F and 9S calibers in nine chapters | Grand Seiko
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Grand Seiko GMT Sport Collection (+/-5s YEAR) 9F Anniversary Limited Edition SBGN007 Watch Review - YouTube
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Vol.9 The Quartz GMT caliber. A breakthrough after 25 years.: Caliber 9F86, the uncompromising GMT watch caliber | The 9F and 9S calibers in nine chapters | Grand Seiko
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