Disregarding the hammer style, a J-Frame is a J-Frame is a J-Frame.
Pulled this from Wikipedia
Smith & Wesson Model 34—A Small six-shot snub-nosed revolver chambered in .22 LR. Produced from 1953 to 1991.
Smith & Wesson Model 36—known as the "Chiefs Special"; first J-frame (1950), 5-shot revolver[17]
Smith & Wesson Model 37—known as the "Chiefs Special Airweight";
Smith & Wesson Model 60—first regular production all stainless steel revolver (1965); the stainless Chief's Special[17]
Smith & Wesson Model 340PD—first revolver made of scandium alloy, very light, possibly the final evolution of the classic J-frame Chief's Special introduced over 60 years earlier, weighs 12 ounces (340 g).[17]
Smith & Wesson Lemon Squeezer—The "lemon squeezer," also known as Model 40, Model 42 and 38 Safety
Smith & Wesson Centennial—standard and "Airweight" (Models 40, 42, 442, 640, 642) (at one time available in 9×19mm caliber as the Model 940)[17]
Smith & Wesson Chief's Special—standard and "Airweight" (Models 36, 37, 60, 637)
Smith & Wesson Bodyguard—standard and "Airweight" (Models 38, 380, 49, 438, 638, 649)
Smith & Wesson Ladysmith[17]