Ball watch company engineer ii volcano nm3060c pcj gy the relationship between volcanoes and magnetic fields has shaped the direction of the new ball volcano watch from the engineer ii collection by perfecting a retractable anti magnetic diaphragm made from mumetal the new innovative protective watch case has been launched consisting of a number of superimposed layers of memutal and carbon the new ball engineer volcano ii sees that the textured carbon appearance not only mimics the look of