WTK value of S&W 686-1

have a s&w 686-1 (what is the dash one for?) it is a 6 shooter , 4" barrel, full lug stainless with s&w dark oak/walnut? finger groove type grips with the gold medalin and screw. serial #AVC12xx. got it from uncles estate. can anyone tell me the specifics on this weapon? year?
are grips original to it? its in 95% plus cond. what is the value range on it.

thanks - RR