Hi Bob,
looking at your George Stockwell, it looks a lot like the Rebberg movements used in early Rolexes. the finishing on the plates, the shape of the stud holder on the balance cock.
Do a search for 'rebberg watch' in Google images.. don't be focussed on the shape of the bridges, instead look at the placement of pivots, relative to the other stuff, ie ratchet wheel, stem.
unfortunately not too much info exists on Rebberg movements on the net..
Anil