That's 3oz naked garment leather sewn with #92 thread.
I don't know of any new machines in that range, but you can sometimes find older walking foot machines in that range. It's a bit tough to find the old machines, because they are so well made that they last forever and people don't want to part with them. Mine is an old Japanese made Consew 206RB (hint, the old German and Japanese machines are the best - that's why the Chinese knock-offs, like Yamata give their machines Japanese names in an attempt to do a little misrepresentation). I was lucky enough to get 2 machines from a defunct car upholstery shop. Like an idiot, I sold one of them, but the one I have is a fantastic machine.
You might try Ebay to see what's around, though be wary, not everything listed as being an industrial machine actually is.