Manipulate the large next hand and cooperate With all the 9 o'clock dial to precisely count the seconds Probably most vital with respect to horological history writ huge was the debut of your “Omega” caliber in 1894, a 19-ligne, crown-set motion whose interchangeable pieces had been intended for uncomplicated service. https://www.watchesworld.com/a-history-of-watch-reference-numbers/