true clock folks may not like this one since the old owner took out the org key wound movement and put in a quartz movement they did do a decent job as the clcok hands look to be correct size and style uses one c cell size is 22 x 12 x 5 clock keeps good time and the movement while i works well has a few features i can not quite figure out swing pendulum if you hold the clock bottom out from the wall a inch it give the pendulum free room to swing also this is a chime clock that i have not had long enough to pick up when it chimes as it is not that loud the clock case is all original and the back was done with urn clips for easy access the batery amd any other part of the inside you wish to get to