can you help figure out what ive got?

[SIGP2101]

Looks refinished to me, but I am faaar from the expert

Rounded edges on the breach, and extractor
Clearly defined metal finish on the breach but numbering are not that clear.
Bottom of the stamping are all black more that I like.
No wear on bluing on the slide at the right from the trigger plate.

Please educate me I am learning. Here is the pic to be clear.