I guess the Armand series represents the classic cymbal sounds of the yesteryears, back in those days when things seem to be simpler and only a very few simple cymbal models were available. I think the old cymbals of the yesteryears are more on the thinner side. Unlike today we have so many cymbal choices, from paper-thin to extra-heavy, from dark to bright, some with hybrid characteristics and special design features, and so forth.
During the 70's, modern music greatly developed, and new musical styles were introduced. So, cymbal manufacturers responded by developing and introducing several new cymbal designs and innovations. Cymbal makers responded to the demands of modern music. Up to this very day, we get to enjoy new cymbal innovations from cymbal makers. There are so many models to choose from, it can be confusing sometimes.
I haven't heard nor tried yet the actual Armand cymbals. But I think a good preference is to listen to the cymbal sounds of the music of artists mentioned on the ad - Beatles, Beach Boys, Cream, Jimi Hendrix, Rolling Stones, Chicago, etc. Then, compare the sounds somehow with the modern music we're enjoying today.
It's like drums. We are somehow familiar of the old-school sounds of classic snare drums such as Radio Kings and Black Beauties. Nowadays, we're enjoying various snare drum sounds, with various sizes and features.
I think it's better if we visit the Zildjian website, then do the cymbal comparisons there.