An electronic watch including a means to establish a time standard, a means to provide a frequency source from the time standard, a means to divide the frequency source into pulses representing seconds, minutes, hours, days, day of the week, months and years, means to display information visually and a means to drive the display including a control for activating said means to display and setting means to program said means to divide the frequency source.

An electrical clock is provided in which pulses of a 10% duty cycle are repeatedly applied at a one second rate to a solenoid which attracts an armature attached to a reciprocating ratchet once every second, the reciprocating ratchet being returned to a neutral position between each pulse. The reciprocating ratchet drives a toothed wheel which is located on a main axis of the clock frame view suitable pawls. The second hand of the clock is directly coupled by a second hand shaft to the toothed wheel. The toothed wheel, by means of a pinion, drives an intermediate gear which is located outbound from the main axis. The intermediate gear drives a minute gear, the minute gear being mounted on a minute tube concentric with the second hand shaft. The minute hand is directly affixed to the minute hand tube. The minute gear, by means of a pinion, drives an outbound motion gear, the motion gear in turn driving an hour gear coupled to an hour tube whose axis is concentric with the second shaft and the minute tube. The hour hand is affixed directly to the hour tube. Various other embodiments of the electrical clock mechanisms of the subject invention are described in more detail herein.

A calendar timepiece which does not require any manual date correction at the end of even months is disclosed. The timepiece comprises an even months date correction claw mounted on a date rotational wheel and displaced into a correction position when a claw driving coil is energized by a signal delivered from means for discriminating odd months from even months.

An electronic schedule calendar and diary for storing in an electronic memory a plurality of future calendar appointments and events for each of a plurality of daily, weekly, or other date interval periods, and enabling the selective retrieval and electronic display of said plural appointments and events for any selected time period. The electronic diary employs manually or remotely controlled entry of said future appointments and events in digital form; manually or remotely controlled correction and updating of said data; and manually controlled retrieval or readout into a visual electronic display. A time-of-day electronic clock may also be included together with an automatic alarm for providing an alarm for each selected appointment or event entered into the memory. In a systems version, a plurality of electronic diaries are employed with a central memory or monitor. Each diary is selectively placed in communication with the central memory for transfer of data therebetween.

A stationary detecting means corresponding to a second time wheel rotating at a higher speed than the hour wheel generates signals at successive intervals of a fixed number of minutes to actuate a time signaling device. A first detecting means is also provided corresponding to the hour wheel. The phase of the first detecting means is set to determine or define an alarm or signaling time. When the phases of the hour wheel and the first detecting means are synchronized, a second signal is generated. The time signaling device is actuated when the time signals of the stationary detecting means and the second detecting means are generated simultaneously.