Fellow OFers, I’ve taken delivery of a used watch (Glycine Altus chrono) that’s running quite fast—gaining probably 5 seconds per minute. It was delivered to me from Italy, so passed through a lot of scanners and over many conveyors, I have to assume. My theory is that it got magnetized. (It was advertised as serviced, and I’m going to begin with the premise that the seller is honest; good reviews.) I just picked up a new demagnetizer (one of the ubiquitous little blue buggers—this is my second; the previous one stopped working but this one definitely does—I can feel it buzzing and I tested it on a screwdriver). I’ve been following best practices (ie Hodinkee: https://www.hodinkee.com/articles/how-to-demagnetize-your-watch) and am using the Lepsi app to check for magnetization after each run. I’ve also timed it out again a few times and it’s still fast—have probably done it more than 20 times at this point. Any guidance? The watch still registers as magnetized on the app. Is it typical to have to do it dozens and dozens of times to get it demagnetized?