Electric watch

A watch is a small timepiece, typically worn either on the wrist or attached on a chain and carried in a pocket, with wristwatches being the most common type of watch used today.  As technology progressed, the mechanisms used to measure time have, in some cases, been replaced by use of quartz vibrations or electromagnetic pulses and are called quartz movements.  Electric watch, which commonly means any watch that is powered by electricity, has become a generic term for the first generation of electrically powered watches which appeared starting in 1957, before the invention of quartz watches in the 1970s. Their timekeeping element was either a traditional balance wheel or a tuning fork, driven electromagnetically by a solenoid powered by a battery. The hands were driven mechanically through a wheel train. They were superseded by quartz watches, which had greater accuracy and durability due to their lower parts count. Recent automatic quartz watches, which combine mechanical technology with quartz timekeeping, are not included in this classification.

A movement in watch making is the mechanism that measures the passage of time and displays the current time (and possibly other information including date, month and day). Movements may be entirely mechanical, entirely electronic (potentially with no moving parts), or a blend of the two. Most watches intended mainly for timekeeping today have electronic movements, with mechanical hands on the watch face indicating the time.

Three-volt lithium coin batteries are perfect for electric watches and other electronics. 

Why Lithium?  The most significant advantages of lithium batteries is long shelf life at room temperature, good low temperature operation, high operating voltage and excellent leakage resistance. In many cases this battery can become a permanent component for the lifetime of your equipment. Lithium also  have  many advantages: High energy density ,High voltage, Long shelf life ,Wide temperature range for operation and storage, Leak resistant, Suitable for pulse discharge, Ideal Standby power source

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