Caliber identification
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  1. #1
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    Caliber identification

    Hi all, I've picked up an old 20s / 30s pocket watch and have given it a strip and clean to find it runs well. My problem is the winding pinion is stripped therefore can't be wound via the normal method. I'm struggling to identify the maker and caliber and wondered if anyone here might be able to help? I'll attach photos as soon as I work out how. Some info. It's 16 - 16.5''' and I'm assuming either Cortebert or Thommen. All the bridges and plates are stamped with either 868 or 898 (depending which way round you're looking at it)

    Thanks in advance!

  2. #2
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    Re: Caliber identification

    If you can't upload directly, try to post from URL via Photobucket or something like that. Without pictures, nothing can be identified.
    I have great faith in fools; self-confidence my friends call it.
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    For any inquiries regarding vintage Doxa watches, please read the highlighted text in my vintage Doxa thread. Sorry, but I will not respond to PMs on the matter.

  3. #3
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    Here it is. Many thanks.
    Attached Images Attached Images




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  5. #4
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    Re: Caliber identification

    Revue Thommen GT
    regards enrico

  6. #5
    Member AbslomRob's Avatar
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    Re: Caliber identification

    Hmm...the keyless works bears a passing resemblance to the one used in the Rolex 850; the "898" stamped on the bridge would suggest this is a later variant, but my Bestfit doesn't know of it.
    My growing collection of "affordable" vintages: http://www.abslomrob.com

  7. #6
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    Hi, my Bestfit (the same as yours probably) also doesn't list it.....

  8. #7
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    Re: Caliber identification

    Hi there,

    ever tried the advanced search of the movement archive? Fig.3 here:
    bidfun-db Archive: Watch Movements: Revue 30 open face



    Don't mind the minor differences. Other brands could afford remarkably higher grade variants

    Regards, Roland Ranfft

  9. #8
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    Hi Roland, yes I have used it many times ;) Thanks for that.

  10. #9
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    The worst part of it is I actually had a GSTP Revue 30 about a year ago that I could had had the pinion out of!!

  11. #10
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    OK back to the drawing board. The Cal 30 winding pinion is far too large. This movement comes in at 17.5 ligne. The Cal 50 looks to be a closer match in terms of Keyless works. Don't suppose anyone owns one for some cross referencing?

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