Ovidio,
I have 2 S&W Model 19's. Both are Model 19-3 from the early 70's, .357, Polished nickel, 1 is a 4", the other a 6" barrel. Bought both from a newly retired Detective in the very early 80's. Both are as issued and never had an issue with either. Tight lock up after years of shooting. I always stayed away from the hot loaded/light bullets.
If you come across one pick it up and see how you like that initial 'Handshake'.
2 Months until Christmas !
Cheers
Charlie-P777