Oh oh...
So: Google the reference you see in the caseback, 168.029. You'll see it's a completely different watch. Note the C-shaped case of the 168.029, while yours, with those angular lugs, is called "dogleg" and will be either a 14902 or a 168.005. It's impossible to tell, because it's been tempered with badly. Either way, the caseback and the rest of the watch dont belong together.
The dial was repainted, which means any value to collectors is gone. The case was heavily polished, thus destroying the characteristic angular lines, edges and bevels of this reference. The crown is incorrect, the hands are either heavily corroded or never matched the indices in the first place. The movement somehow looks like it was treated with a chisel.
I don't see anything on this watch that I'd still consider desirable - not even for spares. Sorry for the bad news, but I'd stay well clear of this example.
