We have lots of ads for Bulova 23's. Ads starting from 1954 running through the mid 1960's. We also have sections of the Official Bulova Model Price Lists with Bulova 23 entries beginning in the November 1954 supplement price list, continuing through the Spring 1964 Quarterly price list. These are the date ranges for available price lists. The lists came out quarterly (Spring, Summer; Fall, Winter), and there were monthly supplements to each previous quarter.
Below is the cover page from the Spring 1955 (published January) Quarterly Price List.
XX Image To Be Added
Following are subsets of the various price lists for all Bulova 23 entries. They are in chronological order. Some lists have various sections showing "new models", "newly priced models", "Diamond Models", and "Cumulative Models to Date". These sections are further subset into "Men's" and "Ladies" models.
For the Bulova 23 series of watches (and other models), we can find information like: Unique Bulova Model Number; Date of first release; Price; Gold Case Color; Dial Color; Date and amount of price change; Jewel count; Variant (letter) designation; Date and change in variant letter designation for identical watches over time; Diamond Dial variants; Inferred date of discontinued production.
November 1954 Monthly Supplement to Winter 1954 Quarterly (Newly Released or Newly Priced Section)
Spring 1955 Quarterly List (Newly Released or Newly Priced Section)
Spring 1955 Quarterly List (Diamond Section)
Spring 1955 Quarterly List (Cumulative Models to Date)
Fall 1955 Quarterly List (Newly Released or Newly Priced Section)
Fall 1955 Quarterly List (Diamond Section)
Fall 1955 Quarterly List (Cumulative Models to Date)
Fall 1958 Quarterly List (Newly Released or Newly Priced Section)
Fall 1958 Quarterly List (Diamond Section)
Fall 1958 Quarterly List (Cumulative Models to Date)
Fall 1961 Quarterly List (Newly Released or Newly Priced Section)
Fall 1961 Quarterly List (Diamond Section)
Fall 1961 Quarterly List (Cumulative Models to Date)
Spring 1964 Quarterly List (Cumulative Models to Date)
More info to be added soon.