There are many Bulova watches with serial numbers. However, these numbers are for identification purposes only. There are no number tables that I am aware of to cross reference the date of manufacture with the serial number. The serical numbers were simply for identification purposes only.
In the late 40's Bulova began using a series of codes to denote the manufacture date.
Interestingly, the code system is well documented from L and on...however, I have recently come across some 1940's watches with the code "A8" and "A9". These watches were also engraved with the owners name and the date- 1948 and 1949 respectively. These must have been the first years that Bulova implemented it's new dating system. Who knows why they jumped from A to L...?
O was skipped - they used P for 1980's. QRS were skipped and T was used for 1990's. Who knows why...WEIRD!