I believe this topic has been mentioned in various forms, but I haven’t seen any one with this exact situation comment before. I purchased a DS30 last fall, and it kept nearly perfect time. Like maybe varying a second a day, if that. A month or two ago I purchased a DB2 (based on the ice-hardened DA3x case). Very soon after, I noticed my DS30 running quite fast, around 20 seconds a day fast. I’ve heard that somethign about the ice-hardened case material of the DA3x is highly prone to becoming magnetic. Not an issue for the watch itself due to the iron inner core, but if this is true, it’s pretty annoying that it magnetized my other watch. I guess if I were to have just the one watch, it would be irrelevant as its magnetism doesn’t affect it, but if I/anyone else has other non-ice-hardened watches, are we going to just have to deal with these becoming magnetized more frequently? Similarly, would the tegmented SINN watches have the same problem?