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Possible Caliber 60 (21J sister to Cal 35) - Madretsch - 17’” Open Face [message #13186] Sun, 09 August 2020 04:05 Go to previous message
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Messages: 1178
Registered: May 2019
Location: Cincinnati
Gruen Authority
Asking for help on this one. I can find no match in my sources.

Caliber: ??
Type: Pocket
Layout: open face
Setting: negative/American
Size: measures just over 38mm (17 ligne / 10 Size)
Signature: G. W. Co.
Maker: unknown

Jewels: 21 (#s only)
Adj: “All Positions”
Movement number: 457174 (on bridge; matching dial side sn)
Example date: late 1913-beginning 1914 production
Dial: 2-piece Ceramic, signed “Gruen”
Dial maker: unmarked
Other marks: “Safety Pinion” (center jewel), “Adjusted” (balance cock)
“Madretsch” (main plate by escape)
*not marked Precision*

/vgforum/index.php?t=getfile&id=6758&private=0
/vgforum/index.php?t=getfile&id=6759&private=0


My two caveats:
1) I'm wrong many times a day --just ask my wife!
2) Always seeking to learn more

[Updated on: Tue, 11 August 2020 01:29]

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