The 3-speed motor is powered by 4 AA batteries and the Cadmium Sulphide light-meter was powered, back in the day, by a 3v mercury cell.
The lens is superb, being approximately a 3x zoom ranging from 9mm to 28mm and with a f1.8 aperture. Like many of the Yashica range from the 1960s, it has a detachable grip with a mechanical lever that allows triggering of the camera's motor. It also came with a remote release.
The leather cases Yashica had made for their cine-cameras were of superb quality and this one's shows no signs of marking after over half-a-century of use.
When this camera was being sold, only Yashica's Pentamatic SLR cost more to buy.