the 'timepiece' that has the most moving parts is the human body as it is timeless, but keeps lousy time and often isn't on time. And that my friend is 'timely'
I have a watch that's right twice a day. Does that count?
Alright. I'll put you and the spaniel out of your respective miseries. Are you ready for this? The clock with the most moving parts is.... an hourglass.
Now you can get your nap in peace.
I knew there'd be a female component in the answer!!!