The following were S&W's small (J) frame revolvers chambered in .32 H&R Magnum:

• Model 032: Airweight Centennial (fully-enclosed hammer). An uncataloged model--only about 180 were ever built.
• Model 431PD: Airweight with exposed hammer.
• Model 432PD: Airweight Centennial.
• Model 631: Stainless steel with exposed hammer.
• Model 632: Stainless Airweight Centennial.

Small batches of the 431PD and 432PD are still built from time to time. The others have been discontinued since the early 1990's, although S&W re-used the 632 model number for their recently-introduced .327 Magnum revolver.

Here are the 032 and 632 Centennials from 1991:



JamesD, if smaller J-frame grips like those pictured above don't work for you, you could always try something like the Uncle Mike's combat grip, pictured below. They're extremely comfortable, and should work better for someone with larger hands.

Uncle Mike's combat grips on a .38 Special Centennial: