1950 Elissa. There is not an example of this exact watch on your site, so I would like to submit mine. It is my 2015 Valentine's Day present and it still works, but is about 4 minutes fast. I would like to know more about it.
In reply to Hi Lady Dairhean. You have a by 1955mercury
In reply to Bretton was fairly common on by JP
I think it is a correct match to the Elissa. The areas to each side of the lug are multi-directional and look difficult to perfectly represent artistically. Everything else, including the band, look to be a good match.
It is hard to tell looking at the caseback image, but what is stamped below the Bulova? I faintly see a 49, possibly be a L#, or maybe nothing at all stamped.
Congratulations on your Valentine's gift; it is probably time to have it serviced and get it running properly.
In reply to I think it is a correct match by Andersok
In reply to There are digits scratched by Lady Dairhean
The numbers scratched inside the case back were put there by the jeweler when the watch was serviced. They would have no meaning to anyone except the jeweler. It could be the job ticket numbers or something like that. But they are an indication of how many services it has received in the past.