Omega Constellation Manhattan automatic First generation

Hello Omega Enthusiasts,

I‘m searching for a Omega Constellation Manhattan automatic. But i‘m especially searching for the early ones with the bezel painted under the saphire. It‘s really hard to find a good one. I found the correct glass for it in 33,5mm with a little defect but maybe its going to be covered by one of the claws. Pictures of the watch and Glass are following!
Does anybody of you have experience with this modell? Reference is 3680865. case reference is1680068