Wife bought a 50s Oyster Perpetual. I have some concerns.

[MIKETOM]

Hey everyone. I don't have the best eye for vintage so I thought I'd post some photos of the model my wife purchased from a local jeweler recently. They have a good reputation here locally but I still wanted a few more opinions.

This is apparently a ref 6580 with a calibre 1030 from 1952. At first, nothing really jumped out at me. It feels hefty, machining is of the usual Rolex quality that I've handled, and I was able to find the typical case engravings at 12 and 6 one of which indicated ref 6580.

What bugs me though is the dial. I suspect it may have been re-finished or butchered at some point and the absence of any "Swiss" markings concerns me a bit. I've seen Rolex dials missing "Swiss" markings before but I don't know much about the issue as a whole.

Anything I should be concerned about? I'd appreciate the help.