Mamiya M645 + Sekor C 55mm f/2,8 120 / medium format camera

I am selling my Mamiya M645, an excellent medium-format film camera that combines mechanical design with an electronic shutter.
The camera is in excellent condition and all its functions work properly. I have installed a new A544 battery in the grip. The shutter speeds have been tested; they are precise and consistent. It comes with a high-quality Sekor C 55 mm f/2.8 wide-angle lens, in superb condition: the lenses are clean and sharp, surface treatments are flawless, and all mechanisms operate perfectly. The lens is accompanied by a lens hood and a cap. The shutter curtain is flat and smooth, and the shutter release works perfectly. As is often the case with this model, there is a trace of corrosion/oxidation in the viewfinder. The set also includes a grip and the manufacturer’s original strap. I’m also including a flash as a gift (its working condition is unknown).
Sold as-is as shown in the photos.