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Classicwatch discussion fora » Jaeger-LeCoultre Forum » Archived Messages 2011 » Help identify vintage JLC with screw on the back « Previous Next »

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Lmallier
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Username: Lmallier

Post Number: 1
Registered: 07-2011

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Posted on Thursday, July 07, 2011 - 06:25 am:   

Hello JLC lovers ,
I got my hands on a nice gold JLC manual winding couple of weeks ago and I'm struggling to find information on it. I cant even open it to know what caliber is inside since I have to get the glass out (monobloc type). It's keeping time very accurately so I don't want to get it to a watchmaker to open it for now because I think it could harm the watch.
There is small screw in gold on the back case which I really don't know what it is for.

There are hallmarks on the backcase: 2 owls and EJ initials with an hourglass in the middle (Edmond Jaeger I presume). An eagle head is also hallmarked on the upper part of the case.


Many thanks in advance for your help.

Cheers.photooih
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Lmallier
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Post Number: 2
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Posted on Sunday, July 10, 2011 - 11:55 am:   

hello,
Zaf could you please give me a hand on this one?
Many thanks in advance.

Louis.
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Zaf
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Username: Zaf

Post Number: 5308
Registered: 05-2003

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Posted on Monday, July 11, 2011 - 05:05 pm:   

The Eagle head indicates French gold. I am on vacation at the moment, I only check occasionally. What information are you looking for?
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Lmallier
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Posted on Tuesday, July 12, 2011 - 01:08 am:   

Thanks for the reply.
I'd like to know estimated age of the watch (I'd personnally say 60s), if there is a model name, if you could explain why there is this screw in the back and if it is a rare watch because I have never encountered a watch like this in the past? Maybe you have.
Final question: is it possible to know the caliber number without opening it?

Many thanks in advance and enjoy your holidays!
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Zaf
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Username: Zaf

Post Number: 5312
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Posted on Wednesday, July 13, 2011 - 11:58 am:   

I'm not sure what the screw does, all I can think of is that it is secures the winding stem. It's odd. The caliver is likely an 881 from the mid 1960s.
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Lmallier
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Posted on Wednesday, July 13, 2011 - 01:55 pm:   

Yes definitely odd. I am going to send an email directly to jaeger lecoultre to get it sorted. I have asked 4 different experts including watchmakers and they have never seen this before.
I'll keep you posted if i get any info.
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Lmallier
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Posted on Wednesday, July 13, 2011 - 02:44 pm:   

OK I got lucky because I found the exact same watch apart from the back case on a forum dating from 2009. I am pretty sure it is actually a caliber K886.
The screw gives actually access to the button? highlighted in the picture attached. I have no clue what it the use of this.
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Zaf
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Post Number: 5315
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Posted on Thursday, July 14, 2011 - 02:05 am:   

Yes, it gives access to the winding stem/detente screw. So rather than use a split stem design they put a screw in there so that you can use a one piece stem. It's still quite strange.
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Lmallier
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Post Number: 6
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Posted on Thursday, July 14, 2011 - 03:22 am:   

maybe a unique piece, worth millions :-)