I do not know the manufacture year or the movement model. I only saw one serial number and that is 7003116 as shown in the picture.
The movement model woudl be 17AE. I don't see a serial number on the movement. I do see BXW on balance cock, the Swiss to USA import code.
Got the hands of the earilier (17jewel) Chesterfield. This 1946 Buckingham ad also shows 17 jewels without the beautiful two tone dial. But then, in 1947 we see Buckingham advertised w/ 21 jewels, but without the two tone dial.
This watch is a beauty....but case and dial may suggest something other than Buckingham regardless of jewel count.
In reply to I'm almost certain I've seen by bourg01
Hi Yellowsub - The little red dots you see in the movement pics are 'jewels' (rubies). They are used to reduce friction at pivot points. The more used, the higher the quality of the item. When I say the count is off I mean that that your watch movement has 21 jewels but the adverts for the Montgomery state that the watch has a 17 jewel movement. When the actual count and the ad differ we suspect that either Bulova made the model with a different movement or somewhere along the last 60 or so years the original movement was replaced with the current one. Either way, it's a wonderful watch!