so for the series of As watches I have a parts list attached. Then the Bulova does it have a model number sometimes they had better tech sheets?
Out of curiosity I googled and there is a minor problem in that set O-Matic comes up as a whole variety of different watches which really isn't very helpful. But on one site which I'm giving a link for below they have a description of 1972 Bulova Jet Star Caliber 11BSACB (AS 2066) . so for the Bulova 11BSACB there is a technical guide so I'm attaching that. It has a rather nice description of how the day date mechanism works how to put together and troubleshooting tips.
https://ambwatches.com/tag/as-2066/
http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&AS_2066
645_as2060,1,2,6,4,6.pdf
Bulova 11BSACB.pdf