This past year I have purchased a few new model S&Ws. New in box 25 Classic, .45 colt, 6" Nickel finish and 617 4" .22. I also purchased used, lnib a 24-13 4" .45 Colt and a 620, 4" .357. All work well. Very accurate and seem to be reliable. No lock issues.

I also have a few from the '70s and 80's.