All Oris watches are anti-magnetic according to the definitions of the DIN 8309 or ISO 764 standards. Calibre 400 Series watches have elevated levels of anti-magnetism. Nevertheless, all watch movements can be magnetised unintentionally. If this happens, your watch will become less accurate. But don’t worry, the solution is quick and simple. Contact Oris Customer Service and we will connect you to an outlet with a demagnetising machine that will reset it.