It doesn't exist. I think what you are asking about is a Model 686. Price range from 150-400 USD depending on condition.
All Smith and Wesson model 686 revolvers were made as double action handguns by Smith and Wesson.
50-550 USD or so
600 USD
100-500 USD
60-600 usd
@ 300 USD
200-400 USD
100-400 or so
100-400 USD
100-450 USD
50-340 USD or so