Help with age please

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Gerryd
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Joined: Tue Mar 13, 2018 3:57 am

Re: Help with age please

#21 Post by Gerryd » Fri Mar 16, 2018 1:54 am

Barney
Thanks again but as always the more I (you) find out the more questions it throughs up :o . was the company using the mark before they were granted the RG registration ?

Gerry

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Barney Green
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Location: Germany

Re: Help with age please

#22 Post by Barney Green » Fri Mar 16, 2018 4:30 am

The answer is: it looks like :-)

Gerryd
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Joined: Tue Mar 13, 2018 3:57 am

Re: Help with age please

#23 Post by Gerryd » Sun Apr 01, 2018 1:16 am

Liz you say its a " pre 1920 Gruen cal 820, 9 ligne movement".
I've tried to find this movement in http://cgi.julesborel.combut or http://www.ranfft.de/cgi-bin/bidfun-db. ... ft&0&2uswk but I have been unsuccessful.
The upshot is that I've cleaned and lubricated the movement but the canon pinion has gone walk about!
I am asking two questions really ---- have you a reference for this movement, and two has anyone got a spare movement or and pinion they would like to sell me?

Gerry

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Barney Green
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Re: Help with age please

#24 Post by Barney Green » Sun Apr 01, 2018 12:55 pm

Hi Gerry,

you will find it referenced at least here:
"The Gruen Watch Repairer's Reference" by Mike Barnett

Let me check if I have parts, but I do not want to give you much hope though. It is an older movement not having been that popular. I checked my spare movements but I do not even have a single 820. May be my parts drawers have something, but the chance is low.

Best regards
Barney

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timeliz
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Re: Help with age please

#25 Post by timeliz » Sun Apr 01, 2018 8:24 pm

Gerry,
Sent you a private message.

Liz

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Barney Green
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Location: Germany

Re: Help with age please

#26 Post by Barney Green » Mon Apr 02, 2018 2:39 am

Checked my inventory, unfortunately I do not have a pinion for an 820...

Gerryd
Posts: 13
Joined: Tue Mar 13, 2018 3:57 am

Re: Help with age please

#27 Post by Gerryd » Mon Apr 02, 2018 3:38 am

Barney

I'm struggling to find any reference to the Cal 820. I've looked in my usual places and I can see that Gruen used a similar movement Alpina Cal 762 all be it slightly larger but not much. You don't have a cross reference chart to see if it is used on another cal do you?

Gerry

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Barney Green
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Location: Germany

Re: Help with age please

#28 Post by Barney Green » Mon Apr 02, 2018 9:22 am

Hi Gerry,

the 820 is very likely to have come from the Aegler factory, but I do not have any proof for this. I am even not 100% sure that this IS an 820, this is really hard to tell. At that specific time Gruen was shopping around quite a bit and trying to get enough movements to fufill the American needs. To really identify a movement it is always necessary to see both sides of the movement, but for this you would have to remove the dial.
Unfortunately the 820 is as fas as I know not stamped as such anywhere.
The Alpina 762 definitely is a different movement coming from Univeral.
Barney

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timeliz
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Re: Help with age please

#29 Post by timeliz » Mon Apr 02, 2018 9:43 am

Since we only have the 820 movement illustration in Gruen's 1926 standardized parts supplement B
information available to us, we just need to go with that.
I will be removing the dial soon and will see if the illustration matches the setting bits.

Gerryd
Posts: 13
Joined: Tue Mar 13, 2018 3:57 am

Re: Help with age please

#30 Post by Gerryd » Mon Apr 02, 2018 10:38 am

I'll post a photo tomorrow showing the front of watch .

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