I've owned my Reverso TT1931 for just over 5 years now and a year ago I took it in for a full service because I was getting irritated that it was running at +20-30 seconds per day. No issues after the service. But with the watch back on the wrist again during these cooler months, to my dismay, found that it was running probably at +15-20 seconds per day again. I took it into the JLC boutique today and they demonstrated that my watch was magnetised (using a compass, was pretty cool to witness actually) and swiftly demagnetised it in the store for me. I guess my question is why this watch is seemingly so easy to magnetise? Also, are the hairsprings in these watches resistant to magnetisation?
If it helps diagnosis, I store my watches in the drawers underneath my bed. The electronics nearest to where I keep my watches are a bedside lamp and a cellphone charging cable, but both sit on top of my bedside table and would probably be at least 25-30 inches away from the watches.
Would love to hear any thoughts on this