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File:Seiko Grand Quartz 9940-8010 (Twinquartz), 1979.jpg - Wikimedia Commons
![w914] SEIKO GRAND QUARTZ 9940-8010 GQ HGP Gold New battery Twin quartz VG | eBay](https://i.ebayimg.com/images/g/cRYAAOSwqqxhbjMT/s-l500.jpg "w914] SEIKO GRAND QUARTZ 9940-8010 GQ HGP Gold New battery Twin quartz VG | eBay")
w914] SEIKO GRAND QUARTZ 9940-8010 GQ HGP Gold New battery Twin quartz VG | eBay
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