Bulova 1949 Aviator
Alright so what do we do with this one? Obviously we know the model. This is a 1942'ish rose gold Alderman.
I'm assuming the original movement crapped out and was replaced by a very clean 1949 10BC.
So... is the watch a 1942 Alderman with replacement movement OR a 1949 Non-Conforming.
See... I think the label Non-Conforming degrades some of these watches that have replacement parts. Who knows... Bulova could have replaced this movement under warranty itself. Though I'm betting this was a watchmakers work.