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Thread: Omega 6B/159 case back engraving

  1. #1
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    Default Omega 6B/159 case back engraving

    I was looking at an Omega 6B/159 on eBay and the case back is engraved 6B/159 A6467. I always thought a legitimate engraving should have 5 digits after the A. Is an engraving with only 4 digits correct?

    Also can anyone give me a known range of movement serial numbers and case back engravings for the Omega 6B/159. Thanks.

    Here is the auction I was referring to:














    Last edited by dave; 09-12-2017 at 13:31. Reason: removed link and inserted images.

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    I bet someone will be cross that you posted that! You'll possibly introduce competition against your potential bid.

    Anyway, I think it looks fine. Reference 2292 case back. Lugs have been shorted on one side which is common.

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    Thanks rodabod, I wasn't thinking about bidding as like you I thought the lugs at one end had been shortened. I was just interested in whether a 4 digit issue number was ok - also there's a big gap between the A and the first digit.

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    I have seen 4-digit serials on both Longines and Omega. There tends to be a broad arrow on the 2292 cases and A.M. on the rest - obviously a transition point c 1943/44 because you see 4-digit numbers associated with both styles of marking.
    Very roughly, 97xxxxx I take to be solidly 1943; 98xxxxx 1943/44; 99xxxxx and 10xxxxxx I put at c 1945 for the 6B/159 (although Dennison cased movements with those numbers will often be civilian market surplus supply c 1947). There is room for some refinement in those numbers so take that as a rough guide.
    Regards,
    Martin (isologue)
    P.S. If you weren't bidding, it might have been doubly appropriate to post after the auction had finished. Just in case.

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    Thanks Martin that's very helpful.

  6. #6

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    I just picked one up with a A and then three digits. The seller's dad kept it from his time in the British military in ww2. Is the 3 digit serial associated with a specific year of issue? Thanks in advance.

  7. #7

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    [IMG]
    [/IMG]

  8. #8

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    Here is the dial. [IMG]
    [/IMG]

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    Quote Originally Posted by Ashmoret View Post
    I just picked one up with a A and then three digits. The seller's dad kept it from his time in the British military in ww2. Is the 3 digit serial associated with a specific year of issue? Thanks in advance.
    Pictures of the inner case back and movement would be more useful. Also there are short lugs on the case - what's the case material?

    Regards,

    Martin (isologue)

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    For reference, two Omega 6Bs: the AM has a 10xxxxx case and the broad arrow a 2292 case reference.



    1943/44 obviously saw some cross over between the style of marking. This makes you realise how inconsistently the markings were applied - assuming both of the above are genuine of course...

    Regards,

    Martin (isologue)

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    Thanks Martin. I found the auction in the last few minutes and got drawn in without time for deep research. The markings looked old and the right font but then I got worried. Will post when it comes.

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    1943/44 obviously saw some cross over between the style of marking. This makes you realise how inconsistently the markings were applied - assuming both of the above are genuine of course...
    Hi Martin,

    Both of your watches are entirely consistent with other markings I have recorded. As far as I can tell the changeover from A.M to Pheon happened somewhere between A6057 (A Longines) and A6467(An Omega). There are also a couple of variations in how the Pheon type markings were applied. Later A26xxx+ numbers used larger fonts, probably because the Omega case allowed more room than the beveled JLC case backs.

    Regards

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    Default help

    Hi Ashmoret, you may like to know that this was my fathers watch, I am now researching his war records and was wondering if you would be interested in sharing any info you find and on my side any of it's military history I can unravel, then drop us a line, just sent you a friend request by the way.

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    Very cool. Just sent you an email.

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    Quote Originally Posted by Kiwi View Post
    Hi Martin,

    Both of your watches are entirely consistent with other markings I have recorded. As far as I can tell the changeover from A.M to Pheon happened somewhere between A6057 (A Longines) and A6467(An Omega). There are also a couple of variations in how the Pheon type markings were applied. Later A26xxx+ numbers used larger fonts, probably because the Omega case allowed more room than the beveled JLC case backs.

    Regards
    Hi,
    Thanks for the assurances. I didn't question these when I had them to hand but photographing them put them in a different light somehow. I hadn't noticed the wonky M for instance but the engraving styles on the omega 6B seem to be very quirky...
    Regards,
    Martin (isologue)

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    Might as well jump on this thread rather than start a new one. I have a 1943/44 example with a broken lug, and I guess the right thing to do would be to get it repaired to its original full length. Is it easy to work on these alloy cases ? Without any recommendations I'd try Adam at WatchCaseWorks, but has anyone here experience with someone else on a 6B/159 case repair ?




  17. #17

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    Quote Originally Posted by hookedseven View Post
    Might as well jump on this thread rather than start a new one. I have a 1943/44 example with a broken lug, and I guess the right thing to do would be to get it repaired to its original full length. Is it easy to work on these alloy cases ? Without any recommendations I'd try Adam at WatchCaseWorks, but has anyone here experience with someone else on a 6B/159 case repair ?



    I've used these in the past and the work has always been top notch
    http://jewellers-watford.co.uk/

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    Quote Originally Posted by Bone Idol View Post
    I've used these in the past and the work has always been top notch
    http://jewellers-watford.co.uk/
    Thanks for the tip Mark, when I get round to asking I'll add Tompkins to the list.

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