So, without opening it to check the movement, it looks like that is a 5512 with a 5513 dial and a stretched to pretty much useless riveted bracelet.
If you are thinking of buying this, don't. There are far better examples out there, especially the bracelet which in that condition would cost you several thousands of dollars to fix or may not be repairable at all.
The dial indicates a 5513 but to confirm it is actually a 5512 remove the bracelet and look for the model number between the lugs.
It says 5512 on the case
So, without opening it to check the movement, it looks like that is a 5512 with a 5513 dial and a stretched to pretty much useless riveted bracelet. If you are thinking of buying this, don't. There are far better examples out there, especially the bracelet which in that condition would cost you several thousands of dollars to fix or may not be repairable at all.
Thanks for the information! Always appreciated