120 format manual focus rangefinder camera released by Mamiya in 1960. The first version of Mamiya’s Press line. Rugged metal body with large viewfinder. Press-system was designed for professional use so it has large selection of accessories and lenses available. Back has bellows mechanism that allows 15 degrees of tilt and 31mm extension. Accepts Mamiya's own M-type roll film backs. Metal body available in dark grey finish with greenish leatherette and light grey rangefinder housing.

• Shutter: Leaf, built into the lenses.
• Size: 160 x 135 x 68mm
• Weight: 970g body only (1864g with 90mm f3.5 lens and 6x9 roll film back)