Singer sewing machine from 1928. It's a treadle, so it also uses no electricity.
My grandmother's cast-iron skillet. It may have been her mothers; much of her cast iron was. If so, it's at least a hundred years old, and if not, it's 80.
My saucepans were wedding gifts to my parents, so they're 50 years old.
Things I've bought: just last night, I realized our alarm clock is eleven years old. Our vehicles are older than that.
My stove is a lovely harvest gold, made that way back when harvest gold was not meant ironically. It works quite well, though, so it stays until it doesn't. That would have been mid-70s, so it's pushing 40.
Our primary chest of drawers was bought new to furnish my nursery just before I was born. It's painted black now, but there are some chips where the yellow is starting to show through (didn't know baby's gender before birth, you know).
The secondary (smaller)chest of drawers is of unknown age since we adopted it from where it had been left behind in a house we were renting, but it's got a lot of inlay veneer and Bakelite handles.
Our washer and dryer are over ten years old with mostly mechanical parts, not electronic, so they're possible to repair (I've done it).
The toilet in our bathroom is recycled from the first house my father built, the one I grew up in. It was the original there, so it's ~35 years old.