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1970 Seiko SpeedTimer 6138-0010 Yachtman "UFO" Proof Chronograph w/Orig Bracelet | DC Vintage Watches
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Shaped by heritage. Powered by light. The Prospex Speedtimer Solar Chronographs. | Seiko Watch Corporation
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Vintage Seiko 5 Sports Speedtimer Chronograph ref. 6139-8001 – 1970, JDM model, All original, Serviced - ChronoTimepieces
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1970 Seiko 6139-6011 SpeedTimer JDM "Deep Blue" Chronograph, w/Original Bracelet | DC Vintage Watches
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Seiko 5 Sports Speed Timer Chronograph Automatic 6139-7020... for $680 for sale from a Seller on Chrono24
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