Here is a link to a short YouTube video of this movement. It's a unlisted video only accessible through this link.
You can see what appears to be MAYBE an 'O' date code between two screws where other examples have their date codes located. This marking however looks more like a hurricane symbol, lol, or something. But i cannot deny that with a little effort you could make a case for that being an 'O' symbol for 1925 (which is why i listed it as 1925 to start with. I see nowhere else any evidence of any other date codes. I do still find it odd that the font and location of the Bulova Watch Co marking are different than other known examples. Also, that this 2-piece bridge arrangement is different than other known examples that use a 3-bridge construction.