TIME DIFFERENCE CORRECTION MECHANISM, WATCH MOVEMENT AND WATCH

To provide a time difference correction mechanism which can correct time differences by the minute with simple operation.SOLUTION: A time difference correction mechanism 150 includes: a date back wheel 61; a time difference correction date back wheel 71; a minute wheel 57a which is continuously rotated via the rotating force from a barrel wheel; a minute transmission pinion 57b which rotates integrally with the minute wheel 57a in a slippery state and rotates in synchronization with the rotation of the date back wheel 61; a cannon pinion 59 which rotates in synchronization with the rotation of the time difference correction date back wheel 71 and on which a minute hand 14 is mounted; an hour wheel 65 which rotates in synchronization with the rotation of the date back wheel 61; a cannon body 64 which rotates in synchronization with the rotation of the time difference correction date back wheel 71 and on which an hour hand 13 is mounted; and a swinging restriction mechanism 120 which is provided at least between either the minute transmission pinion 57b and the cannon pinion 59 or between the hour wheel 65 and the cannon body 64, restricts the relative rotation of the date back wheel 61 and the time difference correction date back wheel 71 and rotates the time difference correction date back wheel 71 every one pitch at a time with respect to the date back wheel 61.SELECTED DRAWING: Figure 3 【課題】簡単な操作で分単位の時差修正が可能な時差修正機構を提供する。【解決手段】時差修正機構１５０は、日の裏車６１と、時差修正日の裏車７１と、香箱車の回転力によって連続的に回転される分歯車５７ａと、分歯車５７ａとスリップ可能な状態で一体回転するとともに日の裏車６１の回転に同期して回転する分伝えかな５７ｂと、時差修正日の裏車７１の回転に同期して回転するとともに分針１４が取り付けられる筒かな５９と、日の裏車６１の回転に同期して回転する時歯車６５と、時差修正日の裏車７１の回転に同期して回転するとともに時針１３が取り付けられる筒車体６４と、分伝えかな５７ｂと筒かなと５９の間、および時歯車６５と筒車体６４との間のうち少なくともいずれか一方に設けられ、日の裏車６１および時差修正日の裏車７１の相対回転を躍制し、日の裏車６１に対して時差修正日の裏車７１を１ピッチずつ回転させる躍制機構１２０と、を備える。【選択図】図３