Chimes 8 minutes late

by Vicki
(Mesquite, Texas)

My clock looks exactly like the one pictured above.

After winding this time, it started chiming 8 minutes late.

For example, at 8:00, it chimes 8 times at 8:08, chimes for the quarter hour at 8:23, etc. How do I fix this?

I made sure the hour hand is properly placed.

I even tried slowing down the time by adjusting the bob, but I don't think that's the correct fix.