This is the first of the EE Matic series and was produced in 1963. The run may have gone until 1965 when the EE Matic Deluxe was introduced.
Apparently, this camera has a shutter speed range of 1/30 to 1/250. The lens is a 40mm f2.8 Hexanon with a Konishiruko tag, my first camera to have it.
The focus range is 3 feet to infinity.
ISO range is 10 ASA! to 200 ASA.
The filter thread is 49mm.
The camera is auto exposure or
aperture priority (I am wrong: the aperture setting is for use with a flash. According to one Japanese camera blogger, the shutter speed in flash mode is 1/60).
In auto mode, the shutter will lock under low light. A red flag will appear in the viewfinder window.
Unlike later EE Matic's this 1963 version does not indicate shutter speed in the viewfinder.
In auto exposure mode, one should press the shutter release half down before firing. This allows the aperture to stop down before the shutter fires.
Pressing the release too quickly may cause the auto exposure shot to be taken at f2.8 as the shutter may open and close before the aperture stops down.
That said, the selenium meter works which is happiness.
April 6 - I did find a Japanese blogger who documented a visit through the innards of the camera. The Google translator works nicely but I wish I could read it in Japanese.
If you are looking for an overall semi-official history of Konica, check out Kenko's timeline of both Konica and Minolta.