Bulova Date Codes
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!
A8 = 1948
A9 = 1949
Bulova Caliber Numbers
Well, here it is straight from the horses mouth. This is the reply I got from Bulova:
“It’s been probably close to 30 years since this numbering system for watch
movements has been used by Bulova.
This is what I know:
a.The number digit signifies the Ligne size of the movement.
b. The next two alpha digits (as below “AE”, “AA”, “CS”) have no real
meaning other than a reference ( like a name).
c. The third and fourth, and sometimes fifth alpha digit would signify the
functional characteristics of the movement.
I do not have any printed references for this anymore, but I seem to
remember the following:
Letter “C” means “center second hand”
Letter “A” means “automatic”
Letter “B” means “day and date display”
Letter “D” means “date only”
Movement number “10BSACB”
This would mean -
10 ligne size movement
Center second hand
Of course, if as in your examples below, there are only two letters, then
the watch does not have the characteristics mentioned above.
I hope this is of some help, because we no longer have any remaining
archives which could explain more in depth.”
I hope this is what you are looking for. That is what I like about the NAWCC, we all like to help each other.