Found two 1930's? Bulovas in grandmas jewelry box. cant seem to figure out which models.Any help?

hello, I found these two watches while cleaning out an old jewelry box. I've tried to pin point what model they are.  one looks like a 38 minute man and the other might be a 38 crocket??? I can't tell so i figured i would ask an expert (you) .  I was thinking of fixing them up as they have been in the family for a while and still keep time. Any information would be greatly appreciated. by the way I don't dare open the backs because I have no idea what goes on in there.      Thanks     Dave

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