Chronograph accuracy for professional usefor professionals where every second counts bell ross has designed anautomatic watch equipped with a chronograph totalling 12 hours 30 minutes and 60 secondsgeneral description self winding mechanical movement meticulous finish 37 jewels 28 800 vibrations an hourpower reserve approximately 42 hours high precision adjustment in 4 positions tolerance of010 seconds a day functions hours minutes seconds 3 counter chronograph 12 ho