More Specifically, “if not built from the workshop, all the things was made in just an hour’s drive from Stamford”. The 3rd large action occurred from the early 1900’s. The shape in the timekeeping apparatus altered in favor of the wristwatch. The first chronometer wristwatch movement arrived in about 1910, https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/