A construction of stacked base plates for a timepiece comprises: a plurality of base plates connected together by calking pins. A portion of one of the calking pins functions as a pivot portion or guide portion for a movable spring member which is mounted on one base plate. Other areas of said base plates are connected by screw bolts so that said base plates are rigidly connected together by said calking pins and screw bolts.

An electronic timepiece having a single digital display and being suitable to operate as a standard timekeeping wristwatch or in the alternative as a chronograph. Separate divider circuits are provided for performing the timekeeping and chronograph functions. A single set of switches is provided for controlling the operation of either divider circuit, a single selector circuit selecting which function is to be displayed and which divider is to be controlled by the switches. Indication means are ...

An electronic timepiece comprising a time indicating body which is composed of a multitude of liquid crystal display elements arranged in hour indicating sections and minute indicating sections respectively, said display elements for hour indication being activated to be turned ON one after another, said display elements for minute indication being activated to be turned ON successively and accumulatively in response to the application of controlled electric signals transmitted from an electroni...

The present disclosure is directed to an electronic digital clock made up of electronic components without using a chain of counters. The digital clock utilizes shift registers with a recirculation path for storing the time information as to hours, minutes and/or seconds and a computing circuit for repeatedly adding the time information one by one in accordance with a predetermined clock base frequency.

In electronic watch-and-band arrangements the batteries are located in the band portion, separately from the watch movement and display. This permits the arrangement to assume novel configuration and gives it novel disposable features.

A switching system for an electronic timepiece has: a plurality of display sections which are individually activated in response to movement of manual member for effecting an amendment of said display sections. A switching mechanism is operated by axial movement and rotational movement of said manual member for effecting the desired amendment.

An all electronic type timepiece is disclosed which comprises a customary or usual display for displaying time, a calendar, a.m., p.m., colon and other functions. An additional display element is provided separately from the customary display or alternatively is constructed as a part thereof for displaying the operating condition of a time counter circuit even when the customary display is extinguished.

An electronic timepiece which includes a time reference signal generator, which generates a signal which is used to count time, and is compensated in its frequency in order to have the predetermined frequency value regardless of variations in ambient temperature.

An electronic digital display wristwatch wherein correction of the time displayed is facilitated by an improved manually operated correction assembly. The electronic wristwatch includes a divider circuit comprising a plurality of divider stages adapted to produce timekeeping signals in response to a high frequency time standard signal applied to said divider circuit. A plurality of display elements are adapted to receive the timekeeping signals and display time in response thereto. A correction ...

A watch case in which a bezel of a crystal and a case band are removably secured together by engagement of a plate spring secured to the bezel with an inclined surface of the case band. A waterproof relation can be obtained between the bezel and the case band by providing a gasket between the bezel and the case band. The plate opening has one portion secured in a recess of the bezel and a bent portion engaging the inclined surface.