PURPOSE: To simultaneously know the current time, 'ROKKI' (one kind of notes to be added to the calender) and the old calendar date by providing a ROKKI display calender which is driven to make one turn in 6 days by the rotary shaft of the time hand, an old calendar date display body, and a reduction gear train which transmits the rotation of the ROKKI display body to the old calendar data display body.
CONSTITUTION: A date indicator driving wheel 12 rotates clockwise as shown by an arrow A during ordinary hand operation. The ROKKI wheel moves by as much as two teeth of a star wheel having 12 number of teeth when the tip of a ROKKI feed finger 12b pushes the tooth part of the star wheel of the ROKKI wheel. The ROKKI wheel makes one turn in 6 days. Furthermore, the rotation of the ROKKI wheel is transmitted to a ROKKI pinion 9b, an old calendar date indicator transmission wheel 11, an old calendar pinion 8b, an old calendar wheel 8a and an old calendar date dial wheel 7d of an old calendar data dial 7. The date dial 7 makes one turn in 31 days by selecting the combinations of the wheels of the ROKKI pinion 9b. The rapid correction of the old calendar data is executed by pulling out a winding crown to a one-step pull position 1b from an ordinary position 1a, intermeshing a sliding pinion 17 with a fast correction wheel 19 and rotating the winding crown clockwise to rotate the wheel 19 counterclockwise as shown by an arrow B. Then the tip 20a of a fast corrector 20 draws a locus C and rapidly feeds the star wheel by one tooth in one turn of the wheel 19.
