Over the last year I bought two watches used where the watch itself was media blasted but the bracelet is brushed.

Both watches are legit, when I got the first one a Fortis Flieger Chrono, I thought perhaps it came on a strap and someone added a mismatched bracelet later but the second watch was a Bulova Lunar Pilot and I confirmed that it comes that way from Bulova.

Is it common for manufacturers to put brushed bracelets on blasted cases?

Is there a reason not to media blast a bracelet?