I see a lot of people on watch forums these days have purchased a watch timing machine to be able to see how their mechanical watches are running. I have noticed that most of them don’t know how to accurately read those results to get a clear idea of what is going on. I have made this video to hopefully clear up some of that confusion and help you to understand exactly what the numbers mean. Here is the link to the video: https://ashtontracy.ca/2019/08/26/reading-understanding-watch-timing-machine-results/
Very grateful to you, Al, @JimInOz, @ChrisN, @Canuck, Watchtinker and the other watchmakers I've forgotten to mention who post these type of interesting technical pieces and commentary.