HELP! Vintage Omega assistance!

I believe I have a 1954 Omega but I am having some difficulty locking down the actual year/model. Any help would be much appreciated. As you can tell, the watch is also has some missing/damaged parts. Someone once said that Omega doesn't really sell any spare parts anymore but I'm not looking to spend a whole lot of money to get this watch back to pristine condition. Are there any places that I can find some broken Omegas I can harvest parts from?

Thanks in advance,
-Dick

Any chance you know of a place where I can get some spare parts??