I am using the Lepsi app to detect magnetism in my watches. I have a 7s26 that shows up on the detector. I've tried one of the little blue watch demagnetizers, which I'm almost positive is working because I can feel the watch vibrate and stuff. I let it sit on the demagnetizer for about 10 seconds, and slowyl draw it up and away, above my head just to be safe. It still shows up on the detector! Is this normal?