For carry, you should probably look at the 642.
It's a lightweight hammerless pistol that is perfect for carry (for those two reasons).
Stainless is fine, but heavier, and you WILL feel the difference when you carry.
You can even get it without the silly lock which you may or may not prefer.
I've got two older Model 60's that I bought in the early 80's, but the hammerless design of the 642 makes a bit more sense for carry because you won't have to worry about snagging a hammer on your clothes.
One 642 rotates as one of my carry pistols, and the other one I have is a bedside pistol. The 642 is an all-around great SD pistol no matter how you want to use it.
Smith & Wesson Model 642 Centennial .38SPL +P - WITHOUT INTERNAL LOCK - Top Gun Supply