I have several old clocks, some require restoration but all work. My most recent find was during a garage sale where I found it on the floor awaiting destruction as someone was bound to step on it. It's one of the earliest models of a battery powered wall clock. Nothing real special about the exterior, but it has a delicate watch movement inside a cheap plastic case. Unbelievably it still works and it's been running for over a week, keeping great time!
Took a chance on this late-60's/early 70's digital from the Bay. Very low price on it and touted as working. And it does. I can set it to a time-sync'd source such as my phone and weeks later it is within a couple seconds of being correct.