Although I'm also a Ruger fan, I'm considering between either a classic S&W early, model 63(No dash)4" .22lr revolver or the newly introduced Ruger SP101 4.2" .22lr revolver?

It seems to me that the best choice could be to go for the older S&W model 63(no dash)although I have never had any experience owning and shooting one of these? Although, Ruger has made some good revolvers in the past, at this point, I'm unsure as to whether or not the new SP101 .22lr revolver would be as good as the Model 63 in terms of quality of construction? So, I'd like to ask those in the know regarding the early J-frame M63 and M34 .22lr revolvers what your opinions might be regarding this? Oh, the price for the S&W model 63 in question is $550 and is close in price to the new Ruger SP101 .22lr revolver. I already own a M617-1 4" .22lr revolver-so my interest lies in the two Kit gun size .22lr revolvers as already noted!