Zenith pocket watch 177p

Hi, I opened this Zenith pocket watch so I'm showing you some pictures of it. I researched the year of manufacture of that watch by the serial number of the movement, but I am not sure if 1940 or 1941 is correct. Does anyone know the exact year? Comments are welcome. Does anyone know if there is a Zenith pocket watch registry where these pictures of mine could be included? Is anyone interested in posting these pictures to that registry? Thank you

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Very nice watch. I say 1940