OF-
I want to share some initial work I have completed on the vintage Breitling Duograph - a serial number project that is my attempt to track and record details of all known vintage Duographs of any reference. The table includes those watches with incorrect parts, which may be the subject of a sub-section in the future - by all means let me know if you have any thoughts.

This overall work is *far* from done. I will be adding specific sections on dial, hands, crown, pushers, case and movement, as I have with other watches I have researched, to show what we see as “correct” for original pieces.

Comments are welcome
https://alphahands.com/vintage-watch-research/breitling-duograph/
One row in the project table for each time a watch changes hands as well, in order to track prices and any changes to the watch

Happy New Year all-