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 Post subject: Gruen 1937 Flip Top Info
PostPosted: Sun Jan 15, 2017 1:57 pm 
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I'm not really a Gruen collector although a have a couple. Nice watches.
I just got this one and can't find too much info on them other than it's the same case as the Shadow, but with the flip top cover?

Can any of the Gruen people help? Rare model? What they sell for?
Thanks.

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 Post subject: Re: Gruen 1937 Flip Top Info
PostPosted: Sun Jan 15, 2017 4:52 pm 
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Joined: Thu Nov 15, 2012 4:23 pm
Posts: 142
Location: Ontario
Flip it open and add a good clear pic of the inside of the case back and the movement?

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 Post subject: Re: Gruen 1937 Flip Top Info
PostPosted: Sun Jan 15, 2017 5:07 pm 
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It's in the mail, so when I get it, I'll post clear pics. What am I looking for besides the 405 movement?


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 Post subject: Re: Gruen 1937 Flip Top Info
PostPosted: Sun Jan 15, 2017 7:09 pm 
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Joined: Mon Mar 05, 2012 11:55 am
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This is the 4th one of these I've seen. And one of those was only a partial, so technically your's is the third I've ever seen in pictures.

For comparison against another model, here's a link to one that sold last year.

http://unwindintime.com/page2.php?view= ... &category=

I'm interested in learning your case serial number.

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 Post subject: Re: Gruen 1937 Flip Top Info
PostPosted: Sun Jan 15, 2017 7:25 pm 
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MikeTheWatchGuy wrote:
This is the 4th one of these I've seen. And one of those was only a partial, so technically your's is the third I've ever seen in pictures.

For comparison against another model, here's a link to one that sold last year.

http://unwindintime.com/page2.php?view= ... &category=

I'm interested in learning your case serial number.


Thanks. That's actually one of the only websites I found when searching. Is this in any Gruen advertisements or catalogs? Does it have a model name?
I'll post more pics and case numbers when I get it.


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 Post subject: Re: Gruen 1937 Flip Top Info
PostPosted: Mon Jan 16, 2017 2:33 am 
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Joined: Mon Nov 23, 2015 2:30 pm
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Location: Germany
In the Gruen Catalog it is called the "Strap 391", I believe the sales name was "Veri-Thin Guardsman". the GS crystal for caliber / style 405 / 396 was said to be good for this model or the other possibility "Veri-Thin Medalist" I have not found it been advertised somewhere.
Ah, and I believe it was 1940 when this watch was introduced, not 1937...


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 Post subject: Re: Gruen 1937 Flip Top Info
PostPosted: Mon Jan 16, 2017 9:17 am 
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Last year I was asked to do a bit of research on this model watch for the seller.

A summary of my findings on his watch:
- Model name is possibly Guardsman based on doing cross references using the BB and GS crystal catalogs
- The partial case I was able to find on ebay had an engraving of 8-24-42 on the back
- You'll find a really nice picture of one of these watches in the book "Vintage Wristwatches" by Reyne Haines
- She called this watch a Gruen "Hunter"
- The watch in her book MATCHES the watch in The Gruen Watch Catalog, the relic/manuscript rescued from Gruen. This watch is owned by Charlie Cleves. I have not yet asked Charlie if Roy Ehrhardt borrowed his watch to put in his "Gruen Master Book" or if the image found in the book was actually in the original Gruen manuscript. (I'll try to find out now)

- Case serial numbers.....
- The watch I located on ebay has a Star case with serial 777725
- The watch sold last year had a Star case with serial 777752.... so these 2 cases were made likely in the same day, minutes apart :-)
- From the recent Gruen Case Serial Number Decoding efforts, the estimated dates for these cases is 1945. This estimate is based largely on NINE caliber 405 and 406 movement serial numbers that were contained in the Star cases examined that started with prefix "7x"

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 Post subject: Re: Gruen 1937 Flip Top Info
PostPosted: Mon Jan 16, 2017 2:06 pm 
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Great info once again. Thank you. I'll post pics once I get it.


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 Post subject: Re: Gruen 1937 Flip Top Info
PostPosted: Thu Jan 19, 2017 11:10 am 
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I just got it in. Here are some more pics. Comments from the Gruen experts?

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 Post subject: Re: Gruen 1937 Flip Top Info
PostPosted: Thu Jan 19, 2017 11:41 am 
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Wow! Big curve ball. I didn't expect those serial numbers. Must do some number crunching on them.

A quick read of what I see (my opinion)....

Caliber 405 movement serial number of 279763 indicates the movement was made in 1941

A Star Case serial number of 992988 is tricky. I believe it means on or after 1941. The 6-digit Star Cases beginning with 9 are simply not well decoded ( yet ). Lemme work on that series a little more and see what I can figure out.

Thank you for the awesome pics and congrats on a nice Gruen.

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