One of the boys next door came over with an Elgin pocket watch that had belonged to his great-grandfather, on the 24th of October, 2009. I told him and his mother that he should service the watch himself, so he came over one evening to work on his watch. Since it was his first time, I gave him a parts mechanism to work on instead. Zach, 11, took apart an Elgin aircraft clock, learning how to pick up the screws with the watchmakers' tweezers and how to hold the watchmakers' screwdriver with his index finger on the end. He displayed uncommon coordination and natural talent. After assembling the aircraft clock, with some help, he could see how his great-grandfather's watch was similar to the aircraft clock, and how the procedure for servicing the aircraft clock was similar to what I planned to do to service his watch. Many of the parts were about the same size.