Dear all; Working on a chronograph, after assembling the demagnetized motion-parts, the motion work ran all over the place. Next to a few other suspicions, the possibility that something had gone wrong during the demagnetization of the parts was one of them. Started checking the movement with a compass, but actually found that my metal Bergeon N˚4040 movement holder was magnetized. Even though the holders' side-plates and guides are made out Stainless Steel, the adjustment screw and ci