This sale is for a really excellent condition Mamiya M645 manual winding knob with crank suitable for the Mamiya M645, M645J and M645 1000S cameras.
This crank also has the winding knob to allow easy film advance using the knob itself rather than just the arm – sometimes really useful. Really just a little lost paint on the crank arm.
Note that this crank is not suitable for the newer 645 Super, 645E, 645 Pro and ProTL cameras.