I have a Beauty Lightomatic III - which looks remarkably like an original Canonet from the front - f1.9 lens, and a selenium element around the lens. It's even the same diameter as the lens barrel on a Canonet. It doesn't have the Canonet's auto exposure, though. There is a meter readout on top, linked to the shutter speed and diaphragm rings.
This one works, but someone has removed the delayed action, and flash synch levers. This means no B speed, and only X synch.