1972
1970
You will have to call S&W to find out.
77-82. what you listed is not the serial number.
1972
1976
1979
I can say that the smith and wesson model 19-3 was made from 1967-1976.maybe if you contact smith and wesson they would be able to give you a more exact date of manufacture.
1976
1972
1980
1974
1980