The Kikuchi is obviously at a lower price point too while the others you have mentioned are high horology pieces. I have two perfect watches currently in my collection. When I say perfect, I mean in every sense including lugs, crown, strap, weight, height, comfort - two watches that allow me to wear them without actually feeling that I am wearing them so they blend into my wrist. One is the Patek 7200R London Edition which I have had for 7 years (the longest watch I have ever owned). The other is the Murakumo by Kikuchi Nakagawa. They are my definition of the complete watch. Simplicity at its best (for me anyway)