for a 629, 8-3/8". The original W.O. is OK, but somewhere on the wonderful internet, I saw a replacement white outline blade that also had a center vertical white line below the square sight notch. Checked S&W, Brownells, Midway,several after market sites with no luck. Maybe just imagination?

sort of like the Bowen Rough Country but square notch.

http://www.bowenclassicarms.com/imag...ghCountryV.jpg