1963 (M3) Movement 11AF, 17 jewel, unadjusted Swiss movement. Case S/N G665439, snap-back. Watch is extremely clean and I suspect it sat in a drawer since the LBJ administration. I don't have a good photo of the band, but it narrows from 16mm at the lugs to 12mm at the back.
These textured bezels were quite popular on the main US made mechanicals and electrics (electro- mechanicals) and even a few Accutrons... from about 1962 or 3 through the latter 60s! Philip has a scarce + 1965 hexagonal bezel one in near "NOS" (mint) condition also listed presently on eBay... (A Senator?) The '66 Senator Greg illustrated, is another good textured example...
http://cgi.ebay.com/FABULOUS-10K-FANCY-CASED-VINTAGE-BULOVA-WRIST-WATCH…
Geezer's is exceptional also, in the fact that it even sport's a textured dial... vs. say the brushed silver or champagne, on the 17J Senators!
NICE WATCH, SIR!
:-) Scott