Hi Everyone. Can anyone identify this one? It has a 21 jewel 10BP movement that carries two date marks. L9 and a less distinct one near the Bulova stamp M3. I found a crystal that fits exactly, GS CMC360 and it's maked "Engineer AB" but I can'y find a mention of it in any of the catalogues. Case is marked M2.
Best Philip
Philip. Movement pic says 23 jewel. Beginning to look like all 23 jewel 10BP mvnts in database from 1958-59 are also "heat cold isochronism" and "6 ADJ".
I added the jewel count and updated the root record based on new database format. No changes otherwise. I changed from round case shape to rectangle, but maybe it's a square.
Found a close match in the 1964 Linebook BAWD0158. This is most likely a 1963 Bulova Brigadier but have not found a confirmation of the dial variant.

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