Will a 120V oven from the US work in Tokyo?

I received a secondhand KitchenAid coutnertop oven from someone who had to permanently leave Japan. Here are the specs: 120V, 60Hz, 1800W.

The previous owner said that it works perfectly in his mansion unit in Tokyo, but I am not sure whether it will work safely at my home as well, since I know the standard voltage and frequency are 100V and 50Hz in Tokyo. We have a three-prong outlets throughout the house though.

Any thoughts? I'm considering just reselling this appliance unit if it's just going to be a safety hazard. Would appreciate anyone's help!