The 17j Movado 3019 PHC is also known as the Zenith El Primero 400. Zenith and Movado had developed the El Primero together, which is also the base movement found in a number of other watches, e.g. Rolex, Daniel Roth, Concord, Ebel 1911, Zenith, Panerai, etc. This can be a difficult movement to find- But more common in the Movado 17j 3019's; the newer 3019/400's have 31 jewels:
The above are two of the El Primero 400's I used to build my personal franken-Daytonas. As it is the same movement Rolex uses in the 16520 Daytona, it makes for an accurate franken.
Difficult? No. I can put one of these together now in about 30 minutes. The hard, and expensive part is culling all the parts needed
Sincere thanks, Falco. I am humbled...
My pleasure.