Patent ID: 7300200
Filing Date: 2007-11-27
Classification: G04B

Abstract:
1. A timepiece having a mainspring winding state display apparatus for displaying a winding state of a mainspring as a power source of the timepiece, the timepiece comprising: a barrel complete having a mainspring as a power source of the timepiece, a barrel stem, and a barrel gear for undergoing rotational movement to wind back the mainspring, the barrel complete undergoing rotation in only one direction of rotation by winding back of the mainspring by the barrel gear; a speed reducing mechanism for undergoing movement with the barrel gear for reducing a speed of rotation of the barrel gear; a segment gear for undergoing rotation in accordance with an output of the speed reducing mechanism; a winding mark display wheel for undergoing rotation in accordance with an operation of the segment gear; and a mainspring winding state display member for displaying a winding state of the mainspring in accordance with rotation of the winding mark display wheel; wherein the segment gear comprises a first segment gear for receiving an output of the speed reducing mechanism, and a second segment gear for rotating the winding mark display wheel.