I got a call from a customer to have a look at a Seth Thomas Grandfather that would only run for a short time, then stop. When I got there, customer explained that they received it as a wedding gift in 1980, and went to the factory to pick it out. Factory delivered the next week, and he had all the paperwork to prove this. He said that it only ran about 2 years, and had spent more time in the shop than in his house. Movement was swapped out for a brand new one 5 years ago. The jewelry store also gave him a can of "high quality clock oil" and said that he should oil it every 2 months. He produced a can of Marvel Mystery Oil, which he said he was faithfully using every 2 months. Just pouring it on everything. When I explained that it would have to come out for evaluation, he didn't want to go that route, and would I be interested in buying the clock. $50 later I'm home with a Seth Thomas in a beautiful case. Inspection shows first that it's still the original movement. It's a Seth Thomas with a October 1979 date code. They charged him for a new movement 5 years ago, and never installed it. Inside is just a goopy mess, but none of the pivots seem worn at all. I'm sure that will look different once it is apart. One strange thing is that the cams that lift the hammers for the chime side are all worn down to a nub. I've never seen with brass on brass. Well now I have my winter project lined up. Here's a few photos of the movement as I removed it.