| 摘要 |
PROBLEM TO BE SOLVED: To provide an analog electronic timepiece which quickly starts rotation of a hand when an instruction for causing fast forward operation of the hand is received from a user.SOLUTION: An analog electronic timepiece includes: fast-forward control means which causes continuous rotation operation of a stepping motor on the basis of an input operation; speed change control means which changes a drive speed of a stepping motor during fast-forward operation; gap determination means which determines, before staring the fast forward operation, whether a wheel train mechanism has a gap between wheels in a direction of rotation of the fast-forward operation; and gap elimination control means which causes, by the number of steps corresponding to a gap, rotation operation of a stepping motor that provides a rotation input to a wheel train mechanism having the gap. If one stepping motor provides such rotation input, the gap elimination control means sets a drive speed of the stepping motor to be greater than an initial drive speed that is set in advance for fast-forward movement. If multiple stepping motors provide such rotation input, the gap elimination control means sets a drive speed of at least one of the stepping motors to be greater than the initial drive speed so that all gaps can be eliminated in a shorter time than a time required for eliminating all gaps using the initial drive speed. |
