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Home » The Gruen Model Database » The caliber database » Caliber 641 (640) - Factory R Gruen Guild (10.5 ligne, 15 jewels)
Re: Caliber 641 (640) - Factory R Gruen Guild [message #12085 is a reply to message #12084] Sat, 01 February 2020 17:34 Go to previous messageGo to previous message
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Registered: May 2019
Location: Cincinnati
Gruen Authority
Example 2
Front plate stamped with sn 12191 (other illegible marks)
Dial stamped Singer “107”, etched “641 1/2”

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