A yo-yo has a recess in one of its faces accommodating a timepiece. The yo-yo is be releasably accommodated in a base, and the base may be worn on a user's person by various means including a wristband in the manner of a wristwatch, a fob or a watch chain in the manner of a pocket watch, a necklace in the manner of a necklace watch, or a holster.

An electrically energized timepiece movement is provided with motion work the form of a planetary train entirely supported on the frame of a driving motor. Coaxial planet pinions are excentrically located on a minute wheel, one planet pinion engaging a fixed central gear and the other engaging the hour wheel.

An electronic watch comprising a motor for converting electrical energy into mechanical rotational movement, an actuating means operable from the outside of the casing of the watch, and an arbor means for the hand of the watch. A gear train couples the motor to the arbor means and a cam means is operatively connected to the actuation means and the watch hands. The cam means are controlled by the operation of the actuation means for setting at least one of the hands of the watch to a reference po...

A wrist watch type container for a toy robot or the like is provided for securely accommodating a toy robot. The wrist watch type container for a toy robot or the like comprises a casing member, strapping means, and cooperating means. The casing member comprises a hollow base portion and an edge portion extending upwardly of the peripheral margin of the hollow base portion. The strapping means is coupled to the casing member for wearing on the wrist. The cooperating means is provided in the toy ...

An oscillator case assembly includes a casing element and an oscillator element housed therein in a hermetically sealed manner. The casing element is made of a solid insulating material, preferably glass or ceramic material, and at least two thin conductive layer elements are provided on said casing element, each serving as parts of lead-in and lead-out means for the oscillator element, respectively.

The present invention has as an object the provision of an electromechanical analogic display device for electronic chronometers, comprising at least an electromagnetic motor controlled by an electrical impulse of short duration. The attractive influence of the latter distorts a spring, very rapidly storing the produced energy to release it in the form of kinetic energy and driving a toothed wheel coupled to the analogic display while on the other hand this electromagnetic motor activates a lock...

For an electrically wound clock, a worm and worm gear drive, wherein the worm is a space-wound helical wire spring, frictionally fitted on a motor shaft, extending beyond the end of the shaft, and unsupported at its outboard end. Engagement with the worm gear takes place at a point beyond the end of the shaft.

A transposed stranded conductor for dynamoelectric machines in which the transposition is incomplete in the slot portion of the conductor so that unbalanced strand voltages occur which are made to balance the strand voltages occurring in the end portions of the conductor. In the preferred embodiments, this result is accomplished by providing untransposed sections in the slot portion of the conductor.

An electronic timepiece comprising a connecting system for connecting a plurality of electronic cells in parallel without undesirable mutual influences such as mutual charging and discharging.

A mechanical vibrator for a timepiece in which a ceramic supporting substrate is rigidly secured to an inner wall of an evacuated housing. The supporting substrate is formed at its one surface with a pair of conducting metal layers serving as leads and at its other surface with a conducting metal layer over a substantially large area. A piezoelectric vibrating element having exciting electrodes is placed on the ceramic supporting substrate and rigidly connected thereto such that the electrodes o...