Abstract: A watch movement construction has a time dial and a base plate having its one surface fixedly supporting the time dial and including a central region and first and second marginal regions. A wheel train mechanism is disposed in the central region of said base plate substantially in the same plane as the base plate. An electro-mechanical transducer is disposed in the first marginal region of the base plate substantially in the same plane as the wheel train mechanism. An electronic circuit section includes a circuit substrate and a plurality of electronic components disposed in the second marginal region of the base plate substantially in the same plane as the wheel train mechanism and the electro-mechanical transducer.

Abstract: A battery construction having a cup member and a cap member fixedly held by the cup member. A cup-shaped separator is disposed between the cup member and the cap member, to provide first and second compartments to accommodate a positive active material and a negative active material. The cup-shaped separator has a radial wall intervening between the first and second compartments, an axial wall integral with the radial wall, and a flange portion compressed between a sealing member and the cup member.

Abstract: A watch movement construction, in which a circuit board is mounted on one surface of a base plate and has a cutout formed at a position near an outer circumference of the movement construction to accommodate a battery in a position such that a circumferential periphery of the battery is partially aligned with the outer circumference of the movement construction whereas a calendar display member is disposed between another surface of the base plate and a time dial at a position displaced from a central portion of the base plate so that a line passing through a center of the battery, a center of the base plate and a center of the calendar display member makes an obtuse angle whereby the calendar display member and the battery are substantially not in an overlapping state thereby to reduce the thickness of the movement construction.

Abstract: A compact electronic timepiece structure for a timepiece having an analog type display wherein the electromechanical transducer for the display and the circuit board for the electronics of the timepiece are combined into a single joint structure. The joint structure comprises an arcuous coil member wound on an insulative bobbin, a circuit board for supporting the electronic components and electrical interconnects between the components, a plurality of holes in the circuit board, and a plurality of thermoplastic fastening means extending through the holes of the circuit board and fastening the bobbin to the circuit board.

Abstract: A dial attaching device for use in watches with a movement holder ring functioning as a member for fixing a foot of a dial to a base plate and as a member for connecting the base plate to a watch case. The movement holder ring is made of synthetic resin and completely fixes the foot of the dial to the base plate therethrough by characteristics of synthetic resin.

Abstract: A rotor assembly for an electro-mechanical transducer of an electronic timepiece, in which a metallic protecting member is fixedly mounted on a rotary shaft. A rare earth magnet is fixedly supported at its outer periphery by the metallic protecting member.

Abstract: An electronic timepiece whose minimum dislay changing time interval is relatively long and is on the order of five seconds to two minutes such, as for example, an hour minute display liquid crystal timepiece or a two hand display crystal timepiece. This timpeiece is capable of measuring a time interval between changeable displays so as to calculate a pitch or stepping rate thereof by means of a display means. A driving circuit for driving the display means is supplied with a detecting repetition pulse having a pulse of a width such that the display means is not responsive to such a degree that naked eyes can follow the display.The detecting repetition pulse is delivered from a detecting signal generation circuit which is supplied with an output from an intermediate stage of a frequency division circuit.

Abstract: An electronic watch having an illuminating time display is provided with a switch for controlling the illumination which is operable controlled movement of the arm on which the watch is carried. A closed casing in the watch is provided with electrical contacts and a ball which will engage the contacts to close the watch upon predetermined movement of the arm.