Here's your answer:

Not a J-Frame, of course, but I don't much care for the look of the "new" cylinder latch so I bought a few on eBay, shined them all nice with "Blue Magic," and this is the result. Got to admit I like the look much better (same as my J-Frame model 60). This one is on my 686+



Did the same to my 629.

Look around for them - they are all over and then either blue it or have it blued.

Rich