3 others worked on the design. His grandfather (I think) is the one who partnered with G Genta. His father took the Nautilus DNA and created Aquanaut which, to me, has the same case as the Nautilus, except for the ears. This time, Thierry has pushed the case to a true octagon to have lineage with Nautilus. When his son takes over, another derivate might be produced. Time will judge the Cubius.