Any S&W 629 pre lock with 6" barrel is a $1000 gun in my neighborhood. The 8 3/8" will bring $1200, 4" most likely $1300, and the 3" $1400 to $1500. All of this depends on the grips the gun carries and any extras, like the original box and papers, which can move the price up or down $100 to $300 rather quickly. Just my experiences.