658 chair chair Model 658 was designed in 1951 by designer Robin Day for Hille. Initially, the chair was designed for the Royal Festival Hall. This model has been in production for several years before it was replaced by a model 700. A model 658 chair designed in 1951 by Robin Day for Hille. The chair was originally developed for the Royal Festival Hall. This model was only in production for a few years before being replaced with the 700 model.