Manufactured 1972 this model is the from the third generation (hence GIII) of Canon's very popular Canonet range.
Being the last, reportedly the best and most desirable camera of the canonet range It has plenty of features to keep many photographers happy, not least a cult following! Mine is in a bit of a sorry state (front lens element badly scratched) so I can't judge how good it is for myself.

Fun with this camera.
Its in a bad way!! The camera functions OK but the lens!!
Being my first step/stumble into camera tinkering I've injured the camera quite a bit.
Firstly I wanted to get to lens to clean it properly, the filter ring was dented, and seeing on the net that there's plenty of these camera's around (Not here in Australia !!) so a parts camera should be easy to pick up, I thought no messing around get my saw!!! into the filter ring I went and through the name plate!! retaining ring!! removed to lens but to no avail it was too badly marked to be cleaned up. So I'm now waiting to pick that cheap parts camera!!

   
  Camera Specs:
Lens: 40mm f1.7, 6 element in 4 component construction.
Shutter: Speeds 1/4 - 1/500 & B.
Exposure meter: Highly sensitive CdS exposure meter. powered by mercury battery. (which are unavailable now I use alkaline 1.5v)
EE mechanism: (EE meaning Electronic Eye exposure meter) Shutter speed priority exposure or full manual control.
Film speed index: ASA 25 - 400.
Viewfinder: Bright viewfinder. Double image superimposing system, coupled rangefinder. Marked with parallax correction marks.
Flash Synchronization: Hot shoe and PC socket.
Self timer: None.
Film Loading: Canon's QL (quick loading) mechanism.
Film Winding: Single operation 120 degree winding lever type. Built-in film transport indicator.
Size: 120mm x 75mm x 60mm.
Weight: 620 grams.