ELECTRONIC TIMEPIECE WITH CHRONOGRAPH

• Main Author: MUTO TAKEO
• Format: Patent
• Language: English
• Published: 28.04.1986
• Subjects: ELECTROMECHANICAL CLOCKS OR WATCHES; HOROLOGY; PHYSICS; TIME-INTERVAL MEASURING

PURPOSE:To display CG time, by displaying usual time by the hr hand, min hand and sec hand arranged to the central part of a timepiece and arranging a plurality of chronograph CG auxiliary sec hands at positions not superposed to the battery and core arranged to movement on a plane. CONSTITUTION:When a crown 9 is present at a push-in position in a usual use state, usual time is displayed by an hr hand, a min hand and a sec hand. When CG is used, a change-over button 8 is pushed once and the quick feed of the sec hand 2 at 64Hz is electrically performed to return said sec hand 2 to a zero sec position to obtain a CG mode. Levers of a CG mode mechanism for returning only a CG min hand and the hr hand by a mechanical return mechanism are arranged so as not to be superposed to CG min and hr train wheels and a CG2/100sec train wheel on a plane. By this method, the levers of the CG mechanism can be constituted of a relatively thin flat plate shaped member and the movement of a timepiece can be made thin by the superposition of the CG mechanism levers on a plane and can be made slim from a design aspect.