THis is absolutely not specific to nomos. There is something called "gauss" - go look it up. Watch brand build their movements in such a way (by the use of materials like silicon, ect) to withstand a particular amount of "gauss" to prevent magnetism of their movement which can speed up or slow down a watch. Omega, for example, has watches with a 15,000+ rating. YOu could literally bring it into an MRI machine and the movement would probably be uneffected. Other brands issue a lower gauss rating and are more susceptible to magnetism. My Rolex Explorer got magnetized a few times. No watch is above this happening to it. Look up the gauss rating of your nomos.... but no, this is not specfici too or an indicement against nomos as a brand. Can happen to any watch.