documentclass[chapterprefix=true]{scrbook}
usepackage{xcolor}
usepackage{graphicx}
usepackage{blindtext}
colorlet{chaptercolor}{black}

setkomafont{chapter}{normalfontcolor{chaptercolor}Huge}
setkomafont{chapterprefix}{Large}
renewcommand*{raggedchapter}{raggedleft}
renewcommand*{chapterformat}{%
    MakeUppercase{chapappifchapterprefix{}}%
    rlap{enskipresizebox{!}{1.2cm}{thechapter} rule{15cm}{1.2cm} }%
}

RedeclareSectionCommand[beforeskip=30pt,afterskip=20pt]{chapter}
renewcommand*chapterheadmidvskip{parnobreakvspace{10pt}}

begin{document}
tableofcontents
chapter{Amazing 1}
blindtext
section{Amazing 2}
end{document}