When you rebuilt the movement did you put each wheel in one at a time then the top plate to see if each wheel turned freely when a blower was puffed on them? Once each wheel is in place and runs freely then put the next wheel in the train and do the same again ie centre wheel, then centre wheel and fourth wheel etc until you are sure the train runs freely.
its a long process but ensures the train is good and narrows down to where your problem sits. The balance. And escapement, if the problem is actually there. Test the train first ok.
watch making in Seattle; could be brought home for the virus duration ? i feal sorry for anyone in Seattle. the governer and his lawer ( Side show bob ) are outstanding "nut cases". if there is to be a vote this year they will be gone. Trump will help that along. later vin