I have an 18s hunter case. Inside the back cover its marked "C.W.MFG.CO
Warranted
14K
U.S. ASSAY
& the case number.
So, there`s no doubt about that, but the only other mark is the same case number on the inside of the cuvette. Nothing is marked inside the front cover. Do we assume the front & cuvette are 14k ? Also with gold watches, is the body/ring of the case that actually holds the movement made of the same gold ?

I would say its all 14K gold.

regards,
bb

Thanks Buster. The case is a fine example but my knowledge of gold cases is minimal & I`m learning from scratch. I read somewhere that cases could be subject to "hybridisation" by some unscrupulous people.