Vintage Gruen: 1930's » Quadron 109

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Re: Quadron 109 [message #11719 is a reply to message #11718]

Wed, 27 November 2019 04:17

Case
Messages: 1178
Registered: May 2019
Location: Cincinnati

Gruen Authority

Well done, Jack. The lost wax casting undertaking is particularly impressive.

The earliest 123 I have recorded is from mid-1929, Gruen case # 1304645, right before the Gruen house case jump to 2mm, one of the first cases marked "movement adjusted in USA," although movement still marked "adjusted temps" (correction: it's not marked for adjustments at all--had to double check, after learning more below. It's sn 700430). Bridges already gold, as were all later ones I've seen.

It seems the 123 had low production, as I've never seen one with a sn higher than 707027, and that one is from at least late 1935 (stamped GXC). From 3 examples I have seen, 1929 serial #s were 700k. By end of 1930, the 123 was at sn 702k, now stamped "Unadj" in a "movement adjusted in USA" case. In 1934 cases, mid-706k. Seemingly fewer than 10k made from 1929-1935.

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

[Updated on: Thu, 28 November 2019 03:14]

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[Message index]

		Quadron 109 By: brtime on Fri, 07 April 2017 21:19
		Re: Quadron 109 By: JackW on Fri, 07 April 2017 23:01
		Re: Quadron 109 By: MonKee on Fri, 07 April 2017 23:16
		Re: Quadron 109 By: timeliz on Fri, 07 April 2017 23:38
		Re: Quadron 109 By: brtime on Sun, 09 April 2017 15:22
		Re: Quadron 109 By: afire on Sun, 09 April 2017 21:42
		Re: Quadron 109 By: Timeticker on Tue, 18 April 2017 23:35
		Re: Quadron 109 By: JackW on Tue, 26 November 2019 16:18
		Re: Quadron 109 By: brtime on Tue, 26 November 2019 17:52
		Re: Quadron 109 By: thesnark17 on Tue, 26 November 2019 22:35
		Re: Quadron 109 By: afire on Tue, 26 November 2019 22:45
		Re: Quadron 109 By: Case on Wed, 27 November 2019 04:17
		Re: Quadron 109 By: thesnark17 on Wed, 27 November 2019 15:03
		Re: Quadron 109 By: Case on Wed, 27 November 2019 16:37
		Re: Quadron 109 By: thesnark17 on Wed, 27 November 2019 17:19
		Re: Quadron 109 By: thesnark17 on Wed, 27 November 2019 17:57
		Re: Quadron 109 By: JackW on Thu, 28 November 2019 00:55
		Re: Quadron 109 By: Case on Thu, 28 November 2019 03:23
		Re: Quadron 109 By: thesnark17 on Thu, 28 November 2019 23:15
		Re: Quadron 109 By: afire on Mon, 02 December 2019 06:01
		Re: Quadron 109 By: Case on Tue, 03 December 2019 02:44
		Re: Quadron 109 By: thesnark17 on Tue, 03 December 2019 04:05
		Re: Quadron 109 By: afire on Tue, 03 December 2019 17:23

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