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Home » The Gruen Model Database » The caliber database » Cal 850/852/854 (15/17/19J) - 17’” (10S) OF (Guild Factory V - Marc Favre ebauche / Lavina finished)
Cal 850/852/854 (15/17/19J) - 17’” (10S) OF [message #13516] Fri, 28 August 2020 04:47 Go to next message
Case is currently offline  Case
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Here is the only observed “Factory V”-stamped caliber family. The forum previously confirmed “Factory V” as Lavina, who also supplied the 740/750 716, & 720 pocket caliber families, among other cals.

Production Dates: ca1919-22 (all “Guild” & pre-1922 tariff stamps for adjustments)

Maker/Finisher: The curious thing is, the 850s are not in-house Lavina movements. They have no Lavina serial numbers on the dial side—just a letter + 2-3 digit number code. Yep, these were supplied by Marc Favre (like the early V7s from this time) & finished by Lavina. The finger bridges may be unique to Lavina.

Identification: All variants are stamped “850” in tiny font between bridges, but this is hard to see in seller pics. One of Mike’s books shows a “Factory V”-stamped movement, mislabeling it as a cal 740. It is actually an 850. They're the same size & have similar bridges, but the click location is one easy differentiator without removing the dial: the 850 family clicks are on the opposite side of the wheel vs 740/750 family.

Variants: (all stamped “850”)

15J, 3ADJ: 850 —> “Factory V” stamp
/vgforum/index.php?t=getfile&id=6959&private=0
/vgforum/index.php?t=getfile&id=6960&private=0
/vgforum/index.php?t=getfile&id=6961&private=0

17J, 3-5ADJ: 852
/vgforum/index.php?t=getfile&id=6962&private=0

19J, 4-5ADJ: 854
/vgforum/index.php?t=getfile&id=6963&private=0

[Updated on: Fri, 28 August 2020 04:53]

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Re: Cal 850/852/854 (15/17/19J) - Guild Factory V - 17L (10S) OF [message #13517 is a reply to message #13516] Fri, 28 August 2020 05:00 Go to previous messageGo to next message
Gary
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Interesting find! And to think Favre was only into ladies movements. A tidbit to add to the factory document.

tag:gfd
Re: Cal 850/852/854 (15/17/19J) - Guild Factory V - 17L (10S) OF [message #13518 is a reply to message #13517] Fri, 28 August 2020 05:12 Go to previous messageGo to next message
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Thanks, Gary! I’d love to find a book on Favre.

My two caveats:
1) I'm wrong many times a day --just ask my wife!
2) Always seeking to learn more
Re: Cal 850/852/854 (15/17/19J) - Guild Factory V - 17L (10S) OF [message #13535 is a reply to message #13518] Fri, 28 August 2020 19:25 Go to previous messageGo to next message
Ephemerald
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Case wrote on Thu, 27 August 2020 23:12
Thanks, Gary! I’d love to find a book on Favre.

What specific info are you looking for on Favre? Or just general.....

Well, I recently uncovered that Favre actually advertised. Haven't coughed up the cash, but I know where some ads are located c; 1922.


Matthias
Re: Cal 850/852/854 (15/17/19J) - Guild Factory V - 17L (10S) OF [message #13543 is a reply to message #13518] Fri, 28 August 2020 20:48 Go to previous message
Ephemerald
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Registered: October 2018
Location: City of Lake Salt
Gruen Authority
There is some history on Favre here;

http://marc-favre.com/services/


Matthias
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