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.Starting around year 2000, Breitling started adding date stamps on their watch heads and bracelets.They are () lightly stamped between the lugs at 6 o'clock.There are several ways to get an idea of when your watch was made.I am slowly adding serial number tables to this site. With the exception of BULOVA, the numbers on the inside and outside of the CASE ITSELF are ONLY for identification purposes - they mean nothing.
In general, for all time periods, it is important to understand that Bulova watches never provide an obvious date of manufacture anywhere on the watch.
Serial number records are available for many of the old pocket watch companies like AM Waltham, Elgin, South Bend etc. The number you need is the serial number stamped on the MOVEMENT (i.e the inner workings).
Write this number down and compare it to the charts on this website.
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Try looking up the watch model in the Breitling reference numbers search engine.