Omega x Cartier: Double signature or not?

Hi everyone,

First post in this forum! Hope that you can advise me on the below watch bought in the Middle East during my last trip:



As you can see this Seamaster isn't in a good shape... however having this double signature on the dial (2 top 3 worldwide brand on 1 dial) made me buy it, probably to much for its condition and probably even more because of an unknown double signature authenticity.

Could you please share your thoughts on this Omega Cartier signature on the dial please? Did Omega retailed its timepieces in Cartier retail network? Any information on a a potential partnership of the brand will be very helpful.

Thank you all in advance for your thoughts

Sorry, no knowledge on the dial situation but the watch in general will always be a sow’s ear.
Hope you got it for next to nothing.

I would not touch that watch with THAT Cartier font.