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Home » The Gruen Model Database » The caliber database » Cal 840 (841) - 5.5’” 18J Extra Precision (Favre )
Cal 840 (841) - 5.5’” 18J Extra Precision [message #13564] Mon, 31 August 2020 13:24 Go to previous message
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Registered: May 2019
Location: Cincinnati
Gruen Authority
Classified “Extra Precision” in my 1926 parts catalogue, although not stamped with the diamond. Have yet to encounter the top-winding 841, which I presume is in necklace models. Showing a bridge side pic from my original copy of 26 parts catalogue.

Dims: 5.5 x 10 ligne
Dial mounts: 2 dial side screws
Front plate marks: sn & “A 32”
Dial maker: unsigned (illegible stamp, possible import or American Art Enamelers)
Dial markings: no “Switzerland”; has 2 serial #s etched in back: “179928” (matches movement) & “1023408”

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[Updated on: Mon, 31 August 2020 13:25]

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