Code red dating
Many observers of Bulova watches are confused by the sometimes seen patent dates stamped on the inside of some Bulova watch cases, and they misinterpret such dates as the time of manufacture.
In point of fact, those patent dates apply only to certain aspects of the case design and indicate only when those general designs were patented.
The case signature begins to include the Bulova name around 1924.
For a detailed analysis, and examples, of Bulova case signatures through the years, Bulova Case Signatures.
In fact Christmas thimbles dated 1990 still use WEDGWOOD ENGLAND] Before the advent of the dating system in 1860 one must look to other clues to date pieces described as marked WEDGWOOD only. Solid Black Jasper was produced between 1778 and about 1826; the white body dipped in black between 17 with production resumed in 1844 and continuing to the moderm era.
For purposes of assigning a date, Bulova watches break down nicely into three basic groups: 1) pre-1926, 2) 1926 through 1949, and 3) 1950 and beyond.
Co." on the movement, and with an "American Standard" only case signature, pre-dates April 1923.This information has been culled from a number of sources - it is given in good faith and believed to be reasonably correct - however if you are going to use it for the basis of valuations, purchases or sales then you must verify it from independent, qualified sources. Take every opportunity to do so at shows and aucthe next recourse is to the mark.Among collectors the term Old Wedgwood is taken to refer to wares produced before Josiah's death in 1795. Josiah started marking his production with his name in about 1759, impressing the name into the underside of the article with printer's movable type.(For a list of those codes, visit Bulova Date Codes.) Additionally, the case serial numbers on those early watches tend to begin with "1" or "2" and appear to bear no correlation to the date the watch was made.Therefore, determining the date of one of these early models is difficult and often impossible to accomplish with absolute certainty.