I started business machining almost 95% 316 and 316L and I thought it was easier to machine than 304 and is definitely easer to machine than 416.
I think its all in what your used to.
Those type of watch parts are usually done with allot of cool fixturing in a lathe then milling the odd features. And allot of polishing after completed.
If you don't like polishing you should maybe find someone who does. Its a dirty business (polishing).
thanks
Michael T.
"If you don't stand for something, chances are, you'll fall for anything!"