A timepiece movement proposed has a spring which drives, via gearing, a time display and a generator (1) supplying an a.c. voltage. The generator (1) powers, via a voltage-transformer circuit (2), a first capacitative component (10). The first capacitative component (10) powers an electronic reference circuit (3, 4, 5) with a stable oscillator (3, 4) and an electronic control circuit (6, 7, 8, 9). The first capacitative component (10) is charged immediately after the movement is started for the ...

In an electronic watch provided with an electric power generator (1) for generating power from external energy and charge means (3) for charging power generated by the electric power generator (1), clock means (4) executes time display operation by power of the electric power generator (1) or charge means (3) and produces a count pulse (S10) for counting the amount of power stored in the charge means (3) and a charge monitoring means (6) counts the amount of stored power of the charge means (3) ...

The invention relates to a watch movement comprising an annular casing (10), having an external diameter D, which is provided with a central round opening (48) that is defined by an internal diameter d. According to the invention, the gear train (34) comprises a mobile (36) consisting of a minute wheel (36a) and a pinion (36b), a cannon pinion (38), which is driven by the minute wheel (36a) and intended to support a minute hand (40), and an hour wheel (42) which is driven by the pinion (36b) and...

The invention relates to a watch housing comprising a body made in two parts (2, 3), connected one to the other. The one of the two parts (2) guarantees the function of a watch whilst the second part (3), connected to the bracelet, comprises means for attachment of an interchangeable module (M). Said module (M) is extended by an elastic tongue (20) and security means are provided to ensure that the tongue (20) is supported on the first part (2) whilst subjecting the above to a permanent force ma...

A timepiece having basic timepiece pointers, chronograph information pointers, a mechanical energy storage section, a train wheel, a power generator, and a control section. The basic timepiece pointers are rotated to indicate the standard time. The chronograph information pointers are rotated to indicate chronograph information. The mechanical energy storage section includes a mainspring. The train wheel is disposed between the mechanical energy storage section and the pointers, and transmits en...

A portable timepiece has a pipe extending from a case and a winding stem for transmitting a rotational force to a timepiece movement in the case. A crown is connected to the winding stem for rotational movement therewith and for detachable engagement with an outer periphery of a male threaded section of the pipe to prevent unintentional rotation of the crown. The crown has a crown shaft for rotating the winding stem, a crown head having a female threaded section for threaded engagement with the ...

There is provided a multifunction timepiece wherein the visibility of pointers can be improved, and increases in the thickness of the timepiece can be reduced. This timepiece includes a dial, an hour hand, a minute hand, a pointer, and a movement. The dial has a dial cover and a time display section on the inner periphery thereof. The hour hand is mounted on the time display section and has an hour hand rotating shaft disposed at a different position from the center position of the time display ...

A watch chain is disclosed. The watch chain comprises a pin groove formed at a spaced inner surface with a certain depth; a plurality of outer connection pieces which have through holes passing through the inner side of the pin groove in the direction of the back surface; a plurality of central connection pieces which have pin holes at spaced portion with the left and right sides of the same being communicated; a connection pin which passes through the pin hole of the central connection piece an...

A shirt cuff has a cut-out opening providing a window through which a wristwatch can be viewed and accessed as it is being worn in an operative viewing position. A flexible fabric flap is attached to the cuff and is positioned under the viewing window, thus providing a saddle for supporting the watch body in the viewing window. The saddle flap allows a wristwatch or other wrist-mounted instrument to be loosely associated with the wrist and worn with utmost comfort and confidence, while preventin...

A portable watch comprises a case body having a noncircular pipe-attachment hole extending therethrough, and a winding stem pipe removably inserted from outside of the case body into the pipe-attachment hole and having a noncircular outer peripheral portion that cooperates with the noncircular pipe-attachment hole to prevent relative rotation between the case body and the winding stem pipe. An inner end portion of the winding stem pipe extends beyond the inside surface of the case body into the ...