Gentlemen, I almost forgot something very important regarding the magnetism issue. I own a Kitchenware manufacturing company. I can tell all of you that "Induction Cooking" is coming to all of us. It is the most efficient cooking method in the world today...
Silicium, Carbon-fiber and other more or less completely amagnetic hairspring materials have been introduced in the last year . It seems clear that manufacturers know this is a problem and are working to correct it. _john