This is the vintage pocket watch collection of my late father-in-law. He was from South Bend, so he liked mainly South Bend watches. Unfortunately I don't know anything about pocket watches. I don't know if or which ones work. None of them feel hallow. The last picture South Bend watch has no glass and the ceramic face is broken. Hopefully the pictures tell the story. The plastic cover on the display case is yellowed, would be nice to replace with glass. I would be happy to answer any ...questions to the best of my ability or take more detailed pictures. On Jul-16-19 at 14:50:15 PDT, seller added the following information:The watch in picture number 3 has a steam locomotive intricate engraving on the back. Had no pictures left to show it.