greetings and welcome to the forum.
As you already found out, it’s a US market Longines watch from the 1950s.
Longine’s agent in the US Wittnauer imported the movements and gave them cases.
Those model names were also invented by Wittnauer to market those watches. So there is little about them in the Longines archive in Switzerland, but they can tell you what date it was sold to Wittnauer and what the caliber is.
Those catalogues are probably hard to find nowadays and It looks like you’ve already found out the most info there is through Vintage Watch Ressources.
Did you send it to Longines for restoration? If so, for the price you could probably ask them to figure out if they have that catalog in their museum and would make a copy for you.
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