Davis Furniture | M75, by Burkhard Vogtherr & Jonathan Prestwich, is a modern take on a Davis classic. Based on the concept of the Motion chair designed by Burkhard Vogtherr in 1987, M75 is a new evolution of the traditional executive chair built for the 21st century workplace. The geometry of the chair is designed so that the user acts as a counterweight for the movement of the seating mechanism.