First, your S&W is either a 2" or 3" Jframe 940 in Stainless or a 3" or 4" Kframe 547 in Blued steel
Second, The 60 never came in 9mm, unless you call a 357 mag by 9x32R
Third, S&W also made an N frame in 38 super, an 8 shot Performance center gun.
Now here is some fun stuf.
I had a S&W 940 and wanted something lighter and saw in "The Standard Catalog of S&W that S&W had made 1 942, basically a 642 with a 940 cylinder installed. I wanted one badly, so I found a 642 locally and ordered from S&W the 940 cylinder and extractor/ejector rod bits to convert it to 9mmx19. I had the cylinder fitted by Mark Hartshorn at Pinnacle High Performance. He is a competitive shooter and a great gunsmith. Links to his web site can be found at Moonclips.com.
Disclaimeran older 642 is not +p rated and a 9mm is definitely much more +p than a 38 spec is. So I have only shot this with my carry ammo to verify POA and POI, it does nicely.end Disclaimer I have loaded up some very low pressure ammo and that is what I practice with. This Combo of a lightweight gun with the short 9mm moonclipped ammo makes for a great carry package. The short ejector rod of a 2" snubby will pop the short 9x19 cases out real easily and completely.
One of the things that Mark has done is to take a 940 and ream the cylinders to either 38 Super or 9x23 and that would make for a great gun. This reaming would take out much of the 9x19 taper and straighten the charge holes chamber specs to the 38 super. This removes the problem sticky extraction that 9x19s have during ejection from a revolver.
Is this a Do it yourself Home Gunsmithing affair, Most definitely not.
I wish that S&W would take one of their Scandium frames and come up with a lightweight K or J frame that would handle 9x19 with moonclips.
For me a 312 would be sweet, 6 shots of moonclipped 9x19 on a lightweightScandium K frame 3" barrel with fixed sights regulated for 125g at about 1000fps. A 9x23/38 super would be sweeter.