Clock is tested and working. I let it run for 3 hours plus before listing. It still may need work from a professional. I do not know if it will run for as long as it did when it was first made, please understand that this clock is 140+ years old and I am not responsible if something goes mechanically wrong with it. Not sure if it needs to be adjusted as far as going too fast or slow. Has some surface wear, missing paint and rust. May need cleaning. Comes with 2 winding keys, the larger key has the hole for raising/lowering the weighted pendulum. Please review pictures