I thought so because the second S in SWISS looks a bit elevated from the rest and because space between SWISS and MADE doesn't look centred. I thought that those has to be perfect, or perhaps this is because of the angle of shooting
EDIT: posted better photo
How about this one on ebay? It's already sold for over 700 Euros.
http://www.ebay.de/itm/Omega-chronograph-320-/252266080484
For me, it looks like, as if
- the dial is a self painted fantasy style
- the case -unidentified- could have been something like 168.029 before it was re-shaped
- the movement was fitted inside the case with some tin stripes, there are no clamps
- the reference 2493-4 has nothing to do, with any part of this "watch"...
I'm new at this but I can't imagine that this isn't a redial.
http://www.ebay.co.uk/itm/Vintage-OMEGA-CONSTELLATION-CHRONOMETER-AUTO-24-JEWEL-B80-/121903231201?