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aug 29, 1989 - 1989年8月29日上海手表厂研制成功国产双日历石英电子男表，填补国内高档石英表的空白。

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1989年8月29日上海手表厂研制成功国产双日历石英电子男表，填补国内高档石英表的空白。

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工业大事年表

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Date:

aug 29, 1989

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~ 36 years ago

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