What is the link to the Omega page where you saw it? It would help if you could provide that.
I actually don't have the link. This is a screenshot I took several months ago. I assumed it was a vintage of some kind, and I am unfamiliar with vintage omegas.
I was going yo say an omega dirty dozen from WWiI but Im wrong. Youcould take a look at Konrad Knirim, he's the best source for military vintage timepieces. I assume its military given the arrow