Mystery 18k rose gold Constellation

Hello everyone.
Last night going thru my boxes found this Constellation that I bought several years ago as a part of the package deal.
Anyway everything looks good but the case is very unusual.
First off it is a snap and not screw down case back, plus markings inside the case have no reference numbers.
It is most definitely 18k (tested and verified).
Anyone have an idea what is going on here?

Most likely a locally cased Constellation.

You will need to track down these hallmarks to find out where it was produced.



Unfortunately, it won’t have the same value as a Swiss cased watch as the case style doesn’t replicate a known Constellation reference.

I am still looking thru my boxes but i did not find any Omega..😀