Everything is modelled. There is no bump or displacement map, it is extremly high detailed for close up Renders.
All parts are properly aligned and modelled proportionally.
The model is available in C4D, Autodesk Maya and fbx file-format.
The C4D File basically consists of Hypernurbs, Sweepnurbs, Instances and Symmetry-Objects.
So you have maximum details with minimum Poly-count.
Please have a look at the larger Previews.