One of our chapter members had a question about this movement several months ago. I took a couple of pictures of these two parts movements that have the same patent date. And also found this Archie Bannatyne patent for that date (same patent as in the earlier thread). US610753A - Archibald bannatyne - Google Patents.
I'm not sure what part of the patent appears in both clocks to have Waterbury make different movements with the same patent date. Or was it just that the movements have the same back plate that was already stamped? Would love to hear other thoughts.
Thanks EW and Pat. I have a Waterbury crystal regulator with the rack and snail and open escapement. Pat’s example has the count wheel and open escapement. Mine has the count wheel and no open escapement. All with the same patent date. Interesting! I wonder if the case on mine is original or if it was black originally. Anybody know a model for the one I have?