I was browsing ebay today and I found this tourist brochure from Singapore with an Omega Constellation ad:

It looks like a ref 168.004 in gold, but the dial hasn't the word "OFFICIALLY CERTIFIED" like all ref 168.004s I have seen, including mine:


So what do you think;

 

Maybe it's a fake ad???

In all seriousness however, I think it was just an error in the advert or potentially a prototype that is pictured?

 

It should never be assumed that vintage adverts were precisely accurate.

 

According to my grandmother, it should never be assumed that vintage people are precisely accurate.

 

I love the "Vintage People" !!