Chronograph watch with immediate display of the fractions of a second

摘要

The watch has a second fraction needle driven by a gauge arm. The needle is rotated on a plate whose amplitude of displacement is controlled by arrival of jaw in abutment on a circular blade driven by a chronograph wheel. The blade has elementary blades (22), each corresponding to one second. The blades (22) having same contour determine the displacement of the arm and divide one second into fractions.