Boys,
The second hand on the Watch in the Ad is termed 'Modern' style, matching its Hour and Minute hands design. The seconds hand showing on the example is termed 'Index' style. Referring to HANDS 101 in the General information section: http://www.mybulova.com/vintage_bulova_hands which is 'handy' piece of info IMO. The Hour and Minute hands showing on the example could possibly be Bulovas 'Fuseaux' style (can't be sure 100%}, which when teamed with the Index style seconds hand is perfectly feasable, if not a rare combination ?
What's catching My eye is the strap mount. The ad shows a configuration whereas the band is attatched to the watch via a double mount (swivel?). The springbar used on the example looks very much like the secondary attatchment point for the band in the ad, if so a rare find. Plains, I'd look into how the Corrigan example in the ad mounts to the band. Details, details...
Nice watch, if 1938 is the original Year of production for this model an added value.