I received a marketing email today for a suit manufacturer with a model wearing the following Omega. Can anyone Identify which specific model this is?

 

Looks like a 1st Gen PO on an alligator strap

 

I concur, also worn upside down.

The watch comes in two sizes not sure which that is.

 

No point asking the model; he hasn't even managed to put it on the right way up!

 

why is he covering the HE Valve?