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seiko 6139-6000
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  1. The Japanese Watch Discussion Forum
    So I found this Seiko 6139-6000 watch in near mint condition and I've been browsing through the forum history on this model about the T vs. T AD marking. Strangely enough, something is not adding right here. Lots of claim that T AD exist on Feb — April 1969 but the one in the picture shows a T...
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