Clock, Mechanical, Digital, & Atomic

A clock is a mechanical or electrical device other than a watch for displaying time. A clock is a machine in which a device that performs regular movements in equal intervals of time is linked to a counting mechanism that records the number of movements. All clocks, of whatever form—whether 12-hour clocks or 24-hour clocks—are made on this principle.

New type of atomic clock keeps time even more precisely

Vehicle Clock of the Week: MiG-21 Analog

Understanding Mechanical Clocks - Chelsea Clock

Atomic-Clocks

Atomic Accuracy Takes a Classic Turn with the Junghans Max Bill

The history of the watch - and the changed perception of time

Mechanical Alarm: Features a mechanical bell alarm for reliable waking or alerting Digital Display: Displays time in a digital format with

Sonnet Atomic LCD Alarm Clock Mechanical Bell Alarms.

15 Timekeeping Devices and Inventions in History • Paymo

Illustration of Huygens 1675 balance spring For sale as Framed

Optical Atomic Clocks Are Ready to Redefine Time - IEEE Spectrum

Mechanical wall clock by Harald Andersson

With a quantum “squeeze,” clocks could keep even more precise time

Vintage Blessing Chrome Alarm Clock, Atomic Space Age, West