Watch stopped running when not worn for days. turned crown 20 times per Raymond Weil manual, did not work.

Make sure you are turning the crown clockwise and stop winding when you feel the tension increase. Also, try wearing it for a day even if it is not runninr; the motion may be enough to get it going if it is an automatic.
There may be something more wrong with your watch.
If the RW is less than 2 years old you should be covered, they have one of the best warranties in the business.
If it needs repair and is older than 2 years, I would still send it to the RW repair center in NY to see what they can do.