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Seat Belt Clasps (2!) Broken/Sprung - Experienced Shark Mesh Help?

  1. cvalue13 Jan 15, 2021

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    2ACD1531-77B1-4DCA-9805-BEA6798A8FF0.jpeg I have two Omega shark mesh bracelets, each with seat belt clasps that have “sprung”/broken.

    Somehow, the internal spring that is supposed to hold the clasp closed as “sprung” to instead now hold the clasp partially or fully open.


    0D8CFCE5-ACA0-421E-9DEA-C305689F9711.jpeg


    This occurred a few years apart on each bracelet, and now for a few years they’ve both sat in a misfit toys box - but it would be great to get them back in service.

    Any shark mesh aficionados that can advise?

    I’ve searched the form for already-existing info about this problem, but came up only with a few threads that got zero responses. Here’s to banging my head against the same wall...

    In case it matters, one bracelet is a 1380/237, while the other is a 1247/237:

    45E938A4-6578-4819-970B-7807DA7DE16B.jpeg 5C209850-2C73-40D8-9EAC-2C6082C43D18.jpeg


    Perhaps an alternative clasp purchase is in order, as I’ve lost some confidence in these clasps (the last one “sprung” while I was wearing it if I remember correctly - I have a memory of my Watchco baby-plo clanking to the hardwood.
     
  2. Archer Omega Qualified Watchmaker Jan 15, 2021

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    Not repairable - Omega has no spare parts for the clasps.
     
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  3. cvalue13 Jan 15, 2021

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    Given @Archer ’s guidance RE repair, I’ve lost confidence in these clasps altogether then, and guess I’ll shift my open question instead to:

    are there alternative clasps that may be fitted to the shark mesh?
     
  4. simonsays Jan 15, 2021

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    I think the vintage ones are more reliable, none of my originals have ever failed. Some of them have a small tab that clicks the flap into the buckle for extra security(or breaking nails?) Although the buckle does not have a spares option I think it may be available separately from the mesh?
     
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  5. cvalue13 Jan 15, 2021

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    I don’t know that I can trust these buckles anymore

    Perhaps as you say the vintage are bulletproof, but as you see I’ve been twice bitten :(

    Rather pricey lesson, too
     
  6. cvalue13 Jan 15, 2021

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    actually, I wonder if you wouldn’t mind showing me a picture of how the two springs are supposed to be arranged?

    here’s how both of my “sprung” clasps are now arranged:


    08DA4F26-BA9A-4BDB-80AF-DB5DA4562411.jpeg

    The spring on the left has a long arm, which is currently acting to push the buckle top open (seems it should be doing the opposite).


    the separate spring on the right has a tiny little arm, that appears only capable of grabbing the smallest amount of lip of the back edge of the buckle top - and unclear that it’s load is engaging at all, at the moment
     
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  7. simonsays Jan 15, 2021

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    Not easy to photograph I have no idea how it should work re spring position, but the bar that is like an ‘n’ in your picture should be firmly pushed down onto the base of the clasp( by spring tension I guess?)

    Your clasp does not look broken but it is a fiddle to get into if a spring end has popped out? 7994337E-4839-45F6-BEF6-1FF9475DC9B5.jpeg
     
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  8. airansun In the shuffling madness Jan 15, 2021

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    One of mine, still functioning properly.

    8FAE349A-0529-4FDB-83FC-2C3456F1CFA4.jpeg

    Really sorry to read about this issue, but I’m not shocked. The clasp on these always felt a little cheesy to me.
     
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  9. cvalue13 Jan 15, 2021

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    Yes, by that photo I can’t really tell what’s what, in terms of spring position, as relates to mine :thumbsdown:
     
  10. cvalue13 Jan 15, 2021

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    That helps a bit more.

    Somehow, the spring “arm” on the left in your photo is the culprit. In your photo it’s tension is pressing down on the floating cross-bar. Whereas in both my clasps at the moment, that same arm is pushing up on the bottom of the clasp cover.

    There is a pin that runs through the center of both of the two springs, and fastens to either side of the clasp body. I’m wondering if that pin has somehow slipped and rotated, such that rather than twisting the spring toward the closed position it now holds open?
     
  11. airansun In the shuffling madness Jan 15, 2021

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    Here’s a few more with the clasp opened wider.

    75658D70-BAB8-4C66-84AB-7B67AAF555B9.jpeg 622B4AB8-8198-499F-A22A-33F65710F7B7.jpeg 7045FC35-7AAA-4422-B4C3-EF3A8C19CA3A.jpeg

    Hope these help.
     
    DBC83819-C6FB-4BF9-9DEE-CCE14884CF5B.jpeg
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  12. cvalue13 Jan 15, 2021

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    actually, these may have helped me see the potential issue:

    Does your spring appear to be one contiguous spring?

    mine appears to be two separate springs. But maybe what’s happened is that a center piece of spring has broken, making a single working spring into two now broken?

    Edit: that is to say, I can slide those two little springs back and forth separately from one another on the shared center pin
     
  13. airansun In the shuffling madness Jan 15, 2021

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    4ECC2E6E-3BDF-427B-ADC1-9B76E655C5A0.jpeg 2D271B5C-2CC2-43B1-835B-51EA1506FD41.jpeg
     
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  14. simonsays Jan 15, 2021

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    To me it looks like two separate springs anchored in a slot in the bar going through the spring? Is your bar rotating independently. It should be fixed in place
     
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  15. cvalue13 Jan 15, 2021

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    The bar going through the two springs isn’t not entirely rigid to the clasp because its mounts on either side of the clasp are somewhat loose. As I open and close the clasp cover I can see the bar ends move ... not completely freely, but also not entirely immovable.

    DE88D663-3994-497B-AA9E-48922161F882.jpeg

    And, my armchair engineering assumes that if that bar were rotated toward the base of the clasp, the long armed spring inside would torque toward holding the floating clasp tooth closed
     
  16. connieseamaster Jan 15, 2021

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    Should you not be able to get your clasp back into working order, I found this 20mm butterfly clasp on eBay and it's been very solid for me. It lives on my work watch and has been subject to all manners of abuse without complaint 1610748004449632100564328569515.jpg 16107480390946305761757934148230.jpg

    It should slot on to your mesh without a problem.
     
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  17. cvalue13 Jan 15, 2021

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    Would you mind showing an under photo of how it attaches to the mesh? Just a bar through the individual ringlets?
     
  18. connieseamaster Jan 15, 2021

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    16107482962002655910766837854009.jpg

    Just a spring bar through the mesh rings and into the clasp. Each side of the clasp has 2 microadjustment holes
     
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  19. simonsays Jan 15, 2021

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    Yes that’s the problem. It should not move at all. It is squared off on my clasp.

    223A3363-D915-405C-A52E-076CE20CAC3E.jpeg
     
  20. airansun In the shuffling madness Jan 15, 2021

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    Not mine.

    367EFB49-EDD5-4D94-A803-16DB26ABF627.jpeg D9B0D678-E011-4BFB-9DF2-E8CB5BAEDB51.jpeg
     
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