Two possible matches are the Ranger or the Chief, but the ads for those do not quite match the amount of spacing or height I see in your dial where the bottom of the 12 is at the same level as the top of the 11 and 1, and not lower intersecting in the middle. Perhaps this case is longer. I did not find any other ad matches, so will see what others think about this one.
It could be a Chief, I think the 1942 Ranger was a different case style. Two things stand out on this watch. First, the serial number seems to indicate 1938. Second, the dial is missing the small piece of the 6 usually found on Rangers,Chiefs and Bankers. Focusing on the case being 1938 I'd suggest a tentative Banker, although we had a slight difficulty with our last '38 Banker ID as well. perhaps we should settle on the year before we look for a match? I say it's a 1938.
I noticed that also, the missing partial 6 marker; there is plenty of space for it. I don't see the usual notch indicating a re-dial. Is the caseback stainless or plated? Another way to verify case originality is to see if there are three Roman numerals etched inside the bezel, if these match the last three of the case s/n then the case and back are very likely original (0 should look like an upside-down V).