I am servicing an Illinois A Lincoln, 16s, 21J that is missing a roller table jewel and has a broken pivot on the escape wheel. In the pocket watch database, it is listed as a Model 9. I see on eBay a Model 9 that looks to be the exact plate structure as the A Lincoln. Would the train gears be interchangeable?

Hi Ken,

it a bit of a crap shoot, would need to be a 21 or 23J same model even then you do find changes over the years, thats how you build up a large spare parts draw :-)