Hi Walt, welcome to myBulova. It's a wonderful watch you've brought us to covet. I wonder how this one came into being. The case is in the style of the Ashford and Jordan. Both watches had what I call a pie pan dial ( shaped like an upturned pie plate). The sweep second hand seems to be much longer than would be found on a wrist watch and reminds me more of a pocket watch. Regarding the left handedness, I would think a competent watchmaker could pull off a rotation. I would venture to guess that someone created this beauty on demand, as custom job. I suppose it could have come directly from Bulova this way but I doubt it. At the end of the day, it's all speculation. I think the watch is grand, I like it a lot.
Alas, I fear we will classify it as Non-Conforming, although I rather like the Frank N. Bulova designation. (Frank being Joseph's long lost son, Arde's black sheep brother, who joined the circus upon leaving university in his third year).