A correction device for a watch having a plurality of adjustable time displays utilizes a single control element extending externally of the watch and adapted to be manually operated to adjust the plurality of time displays. Operating means operatively associates each of the adjustable time displays with the control element whereby the latter is operable to adjust each of the time displays. By way of example, the control element may be used to adjust a first time display indicating local time and a second time display indicating the hour in a time zone other than that in which the wearer of the watch is located.
The winding and setting stem of a calendar watch has a pushed-in winding position and a pulled-out time setting position. In the pushed-in position, rotation of the stem is transmitted by a crown wheel which moves for one direction of rotation into a barrel-winding position and for the opposite direction of rotation into a position in which it drives a heart to advance a date-ring step-by-step. A sprung hammer tends to keep the heart in a disengaged position and prevents unwanted setting of the date.
An improved setting mechanism for a timepiece of a known type having a frame, a gear train, a detented setting stem rotatably mounted and axially slidable in the frame and having a toothed setting pinion which is engageable and disengageable with a plurality of crown teeth arranged on one of the gear train members, the stem setting pinion being arranged on a first axis and the crown tooth gear being arranged on a second axis. The improvement comprises offsetting the first axis so that it does not intersect the second axis and skewing the crown teeth in the direction of offset so that the setting pinion engages the crown teeth from a non-radial direction to facilitate engagement on only one side of the pinion. The offset further facilitates a stem extension in a non-interfering position.
