公开(公告)号：EP1097408B1

公开(公告)日：2005-05-04

申请号：EP99927647.0

申请日：1999-07-14

申请人： Watch-U-License AG

发明人： MOCK, Elmar ,  WITTEVEEN, Bonny

IPC分类号： G04B17/28

CPC分类号： G04B17/285

摘要： The invention concerns a timepiece comprising a mainspring with constant couple, having a balance spring and a balance wheel, the balance wheel (7) oscillation being maintained through an escapement mobile element (2) by moving a fixation point of the balance spring (6) when the oscillator passes through the oscillator impulse point, bringing about a circular motion of said balance spring (6) fixation point about the oscillator, thereby driving in rotation in time the mainspring-escapement assembly (2, 6, 7).