Anyone ever see this funky 1035 clasp?

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Was rummaging through the parts bin and came across this clasp. NOS, obviously never mounted on a bracelet, but I’ve never seen this particular design. Anyone?

 
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Do you think the part with the Omega logo is from another bracelet? It’s the arch that is unusual to 1035, here is a photo for reference of a ‘flat topped’ one. I know you are aware what it should look like, I have just included it for reference.
 
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Does it close properly? I think it’s an attractive clasp