This elegant timepiece by ball has a number of prominent features including the companys dial illumination system that guarantees readability during the night the watch is equipped with swiss made eta 2836 2 automatic calibre that is certified by contrle officiel suisse de chronomtres cosc the official swiss institute that tests chronometers the watch is protected from shock magnetic influences and water penetration hands numerals and indices are illuminated through the use of 31 se