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  1. kpaxsg Feb 27, 2016

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    Dial looks pretty clean to me but the 2 dots on the 6 & 12 hour marks are good to move forward..
    The case back markings I'm not though....any inputs?
    image.jpeg image.jpeg image.jpeg
     
  2. watchknut New watch + Instagram + wife = dumbass Feb 27, 2016

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    This is the one on eBay for $5k right?

    Personally, would like some patina on the markers and hands...while it may be a near perfect vtg example, it looks just like a Watchco to me.
     
  3. redpcar Feb 27, 2016

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    I would be more concerned about the movement :eek:.
    $5K?
    Dial looks Watchco to me.
     
  4. gemini4 Hoarder Of Speed et alia Feb 27, 2016

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    I think the dial is an older TT dial but appears to be NOS. The movement number is too new and the bezel is a service replacement. Hands are also suspect.
     
  5. watchknut New watch + Instagram + wife = dumbass Feb 27, 2016

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    For $5k, my gut tells me you can do better.
     
  6. gemini4 Hoarder Of Speed et alia Feb 27, 2016

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    On second look, the inside caseback reference number is 165.024, a non date reference. I guess that settles things. Keep looking.

    https://www.ebay.com/ulk/itm/201528234954Purchases made through these links may earn this site a commission from the eBay Partner Network

    image.jpeg
     
  7. Baz9614 Feb 27, 2016

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    I have not seen another case back like this one? Looks like it actually has both 165.024 & 166.024 stamped in the back? Is this common?
     
  8. gemini4 Hoarder Of Speed et alia Feb 27, 2016

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    I've seen these type of SM300 casebacks before. I think this caseback went from

    165024 to
    166024 to
    165.024

    Go figure.
     
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  9. gemini4 Hoarder Of Speed et alia Feb 27, 2016

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    Here is another similar era sm300 caseback which was changed from a 165024 to a 166024. Hard to photograph the detail. Omega has a history of using every last production part. :)

    image.jpeg image.jpeg
     
  10. Baz9614 Feb 27, 2016

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    I appreciate the education Gemini4. I have one 165.024 myself, and value all the info I can find! I knew they used parts from various years, but interesting they actually stamped a crosshatch box over the original reference, and stamp another.
     
  11. gemini4 Hoarder Of Speed et alia Feb 27, 2016

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    This type of reclassification of reference numbers is seen occasionally on Speedmasters, i.e. 105.012-66 to a 145.012-67 caseback.
     
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  12. STANDY schizophrenic pizza orderer and watch collector Feb 27, 2016

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    The wear marks from the rotor on the movement are odd.
     
  13. gemini4 Hoarder Of Speed et alia Feb 27, 2016

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    They would probably be less evident on the OP caseback and rotor if the watch had a gasket.
     
  14. STANDY schizophrenic pizza orderer and watch collector Feb 27, 2016

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    The wear marks under the rotor.
     
  15. gemini4 Hoarder Of Speed et alia Feb 27, 2016

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    I'm not a movement expert but wouldn't the lack of a gasket cause the tighten caseback to compress the rotor and cause excess wear in the caseback (there is a ring) and at various points of the rotor?

    Anyway, this watch is quite a mess and should be avoided.
     
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  16. STANDY schizophrenic pizza orderer and watch collector Feb 27, 2016

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    There is wear on the rotor and on the case back, but look at the top of the movement under the rotor there is a mark on the bridge ( where it says twenty)
     
  17. kpaxsg Feb 27, 2016

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    Yes 'quite a mess' is a good way to describe
     
  18. gemini4 Hoarder Of Speed et alia Feb 27, 2016

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    I see it. My best guess is that this is circular mark is caused by the compressed rotar wearing out the nearby jewel and then digging into the now scratched part (near the twenty) of the movement.
     
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  19. Archer Omega Qualified Watchmaker Jun 2, 2018

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    Rotor pinion is worn, so when the wear gets to this level the rotor starts to drag on the plates. Exactly where the rotor starts to hit the plates depends in part on how flat the rotor is - if it's slightly twisted (common) then it's not all that unusual to see it rubbing like this.

    This kind of mark can also be from a loose screw getting caught under the rotor, but usually those are more intermittent scratches.

    Cheers, Al