'The revolver that goes with me everywhere, and stays hidden, is a SW 640 (2" hammerless J-frame in .357).'
Same for me, but mine is a .38 Special rated for +P (and tested, according to etching inside the frame, for +P+). Weighs about 21 ounces unloaded. I find it easy to control with severely arthritic hands shooting +P 158 grain LSWCHP ammo. Easy to conceal, and I've carried it daily for over ten years without feeling undergunned.
"Don't let macho be your epitaph."