A correction device for a watch having a plurality of adjustable time displays utilizes a single control element extending externally of the watch and adapted to be manually operated to adjust the plurality of time displays. Operating means operatively associates each of the adjustable time displays with the control element whereby the latter is operable to adjust each of the time displays. By way of example, the control element may be used to adjust a first time display indicating local time an...

An electronic timepiece calendar circuit whereby the display of at least the date is automatically effected during both leap years and non-leap years is provided. The electronic timepiece calendar circuitry includes a date counter that is indexed by a count of one from a count of one to at least 31 and thereafter is returned to a count of one to begin counting the dates of the next month. A month counter is provided for being indexed by one through a count of one to at least 12 each time the dat...

A calendar watch date indicator drive mechanism including a rotatably driven cam carried by a shaft slidably disposed in a guide groove, the cam being effective, in combination with a jumper, to cause a delayed, sharp, rotational advance of the date indicator means when sliding movement of the cam is mechanically arrested.

In a timepiece wherein the second, minute and hour hands are rotated about a common axis, an externally operated hand position resetting arrangement is provided for shifting a second hand connection lever and a minute and hour hand correction lever into engagement with respective cams to accomplish the resetting of the hands to a zero position.

An apparatus for setting the hands of a watch having a three position stem in which the middle position is for adjusting only the hour hand, the outer position is the normal time setting position for adjusting both the minute and hour hands as in a normal watch, and the inner position is the normal winding position.

Disclosed is a solid state watch which requires no moving parts for timekeeping and display. The watch comprises a crystal controlled oscillator connected through an integrated circuit binary frequency divider to an electro-optical display in the form of light emitting diodes. The display is energized only on demand and the level of the light output is controlled in accordance with ambient light conditions. The watch is energized from a rechargeable battery.

A universal timepiece comprises a disc driven by means comprising meshing first and second planet wheels pivotally mounted on a rotatably carrier angularly fixed with the disc, the first planet wheel meshing with a pinion in an hours hand driving train, and the second planet wheel meshing with a solar pinion. The solar pinion is normally angularly fixed, but a setting train for the disc meshes with the solar pinion to enable rotation thereof.

A horological device with a regular hour hand and including an auxiliary hour hand for indicating a different time zone than the local time. The auxiliary hour hand is connected to the regular hour hand through a coupling member permitting relative rotation between the regular hour hand and the auxiliary hour hand when the crown is rotated in one direction and permitting normal setting of the hour hand and minute hand, with the auxiliary hour hand moving in unison, when the crown is rotated in t...

A horological device with a regular hour hand and including an auxiliary hour hand for indicating a different time zone than the local time. The auxiliary hour hand is connected to a ratchet coupling member permitting relative rotation between the regular hour hand and the auxiliary hour hand when the crown is rotated in one direction and permitting normal setting of the hour hand and minute hand, with the auxiliary hour hand moving in unison, when the crown is rotated in the opposite direction....

In a timepiece comprising at least one slidably mounted push-piece, the push-piece is indirectly actuatable by a manually operable key pivotally mounted on the timepiece casing.