| 摘要 |
PURPOSE:To make the time correction after the use of additional function such as chronograph easy and simple by storing the time wnich had been in an additional function operating state, and performing a fast fowarding correction of the display time at the time of resetting the same to an ordinary timepiece operation on the basis of said storage. CONSTITUTION:When the state which has been used in a stopwatch or the like is returned to an ordinary timepiece operation by turning a change-over switch S1 off, the output of an flip-flop FF1 inverts, thereby closing AND gates 8, 9 and opening an AND gate 4 and resuming the ordinary timepiece operation. At the same time, an AND gate 11 closes to stop the up counting of a counter 10, and an AND gate 21 opens so that the up count value of the counter 10 of the time which had been in the stopwatch operation state by down-counting is made zero and the fast forward clock is applied to a driving circuit 6 and the counter 10 until an AND gate 22 is closed via a NAND gate 23, thereby the display time is corrected automatically at fast feed. Hence, the time correction after the use of additional function such as chronograph is accomplished easily and simply. |
