When I went through TSA, the guard standing there began to eye me. I tried not to act nervous while I slid my jacket over my Noob GMT but he must have noticed. He walked over the the guy who was looking at my boarding pass and I couldn't quite hear them muttering, but I did hear SEL. I then distinctly heard "incorrect hand stack" and I began to panic internally. When they asked me to come over to look through my stuff, they told me I was required to have my receipt from a jeweler that shows I purchased my watch and they needed to have it otherwise I couldn't board my flight. They said they were going to hold onto the watch and let me go onto my flight, and I could have it back when I had proof I had paid for the watch...