Display mechanism for displaying number of weeks in clockwork movement of timepiece, has indicating hand performing jump relative to minutes gradation corresponding to angular distance of toothless sector of wheel connected to another wheel

摘要

The mechanism has a wheel (4) connected to another wheel (3) by connection units formed by spring (6), pin (7) and opening (8) connecting the wheels with angular clearance equal to/higher than angular distance of toothless sector (3b) of the other wheel. The former wheel has an angular step higher than that of toothed sector of the latter wheel, so that the former wheel traverses a path larger than the latter wheel and the latter wheel is rotated clockwise under action of the units. An indicating hand (2) performs a jump relative to minutes gradation (1) corresponding to the distance.