Cleaned up some of the crud
First went in and scrubbed off the thickest nastiest gunk with a stick
Then scrubbed everything down in naphtha, which dissolves oil
After that it gets rinsed in alcohol, then cleaned in a watch cleaning solution for 20 minutes in an ultrasonic cleaner. Then rinsed in water, rinsed in 99% alcohol, and dried.
I think this is about as clean as it's going to get. Lots of marks and exposed brass here
I also cleaned the case and even the screws. Jewels, balance and pallet fork will be cleaned separately in a safer solution.
Now time for inspection and reassembly