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  1. bama2141 Dec 19, 2018

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    I’m looking for an official (logo engraved) Omega acrylic crystal with an outer diameter of 36.4mm. Can anyone tell me the appropriate part number?

    Many thanks!
     
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  2. Rochete Dec 19, 2018

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    I think it'd be easier if you provide the watch model number.
     
  3. X350 XJR Vintage Omega Aficionado Dec 19, 2018

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    They don't go by diameter alone, you need the case reference number for the correct crystal.
     
  4. bama2141 Dec 19, 2018

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    Ah yes, but that’s the core of the problem. The crystal would be for this:

    81B0849E-4B32-45F4-A5A5-3DC6B632BC08.jpeg

    ... which I described in a post here... https://omegaforums.net/threads/ultraman-consolation-prize.86845/

    When I bought it the previous owner sent me the original crystal (which had been cracked). That crystal was original to the watch and was an Omega part with the engraved logo. The replaced crystal is totally fine, but generic and a slighly less dome shaped contour. If the Omega part was still availavle I’d probably like to swap back.
     
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  5. KP-99 Dec 19, 2018

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    It looks like a Chronostop case, perhaps the crystal of a ref. 145.007 would fit your wakmann?!

    PS: The case measures 41mm in diameter without crown?
     
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  6. bama2141 Dec 19, 2018

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    That’s a pretty good guess - this Wakmann case is 41.5mm dia.
     
  7. gdupree Dec 19, 2018

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    For what it's worth, just measured the crystal diameter on my 145.007, and it does appears to have a diameter of approximately 36mm. (I can't get much more accurate than that because the batter in my digital calipers are dead, but it reads just about 36 - maybe slightly more - measuring the crystal at the base of the case.)
     
  8. KP-99 Dec 19, 2018

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    I think, the crystal diameter of the 145.007 is 36.6, but I am not sure.
     
  9. bama2141 Dec 19, 2018

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    The 145.007 is probably the best guess.

    I found this part number on the web:
    OMEGA Crystal Pz5141 33-cry2037 OMEGA Chronostop 145.007

    I presume I’ll also need a retaining ring too
     
  10. michael e Still learning. Dec 19, 2018

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    I have a few.
    Get in touch if you struggle.
    And that goes for anyone else, if you struggle finding Omega glass let me know I have 100s.
    Cheers, Michael
     
    F03D4A1A-7A49-47B7-8880-6248C9C124AC.jpeg B3054776-D9A1-4FDB-A694-AA5BE4A792E8.jpeg 2467FB3F-5074-4F88-82B8-FCA11858E130.jpeg 83DBC4E0-D5B3-4B04-BFBD-DA564F11215C.jpeg
    ken_hodson, kaplan, bconnor87 and 4 others like this.
  11. bama2141 Dec 19, 2018

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    That spirit is what makes OF great!
     
  12. dantheman3u4i Dec 19, 2018

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    That a serious collection of glass!
     
  13. qboa Dec 19, 2018

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    fantastic collection ::rimshot::
     
  14. Archer Omega Qualified Watchmaker Dec 21, 2018

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    You mean plastic...

    Please keep in mind that the diameter is only one parameter needed when selecting a crystal. If you can tell me the diameter and height you need (I can see by your photo you need a white tension ring) I can look for a crystal that might work.
     
  15. bama2141 Dec 21, 2018

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    Thanks Archer!

    The damaged Omega marked crystal diameter measures 36.4mm pretty confidently. The height is about 5.6mm with a bit of uncertainty
     
  16. Archer Omega Qualified Watchmaker Dec 21, 2018

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    Then I would suggest that the crystal for the Chronostop is not what you want...

    063PZ5141 | GLASS PLEXI ST RING D36.63 H4.7

    I'll see what I can find...
     
  17. Archer Omega Qualified Watchmaker Dec 21, 2018

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    So 224 crystals checked for size, and there doesn't appear to be anything with the 36.4 diameter and an approx. 5.6 mm height.

    Closest I can see is 063PZ5153 | GLASS PLEXI ST RING D36.63 H5.7.
     
  18. bama2141 Dec 21, 2018

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    Thanks much for the research. Can you tell me what Omega reference that was made for? — and is it a still available part.
     
  19. Archer Omega Qualified Watchmaker Dec 21, 2018

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    Crystal is still available - case is 055ST1450019.
     
  20. PostwarO27 Sep 14, 2021

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    Would you still happen to have an acrylic crystal for a vintage 2635-1 case?