FifthAvenueRes…
Posted February 16, 2026 - 3:34am
The correlation between the Case serial number and the Movement date code is a fairly recent discovery in Bulova history.
If this movement is a swap the person doing the work would need to have known this or being only one year off was very lucky as production of the 10AN covers a fairly lengthy time period.
imo the watch is indeed 1927.