A guess at your description
By: colton_d : October 8th, 2013-08:26
Lange has several watches which show 'jumping; 1) Could be the jumping minutes of a Zw, or the penultimate jump of each digit of the Zw 2) Could be the instantaneous jumping of the Dato, 1815 Chrono or Double Split minute totalizer 3) Could also be the in...