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2. Automatic watch - Wikipedia

   en.wikipedia.org/wiki/Automatic_watch

   The earliest reference to self-winding watches is at the end of 1773 when a newspaper reported that Joseph Tlustos had invented a watch that did not need to be wound. [8] But his idea was probably based on the myth of perpetual motion, and it is unlikely that it was a practical solution to the problem of self-winding watches.

3. Automatic quartz - Wikipedia

   en.wikipedia.org/wiki/Automatic_quartz

   Automatic quartz is a collective term describing watch movements that combine a self-winding rotor mechanism [1] (as used in automatic mechanical watches) to generate electricity with a piezoelectric quartz crystal as its timing element. Such movements aim to provide the advantages of quartz without the inconvenience and environmental impact of ...

4. Elgin National Watch Company - Wikipedia

   en.wikipedia.org/wiki/Elgin_National_Watch_Company

   The company built the Elgin National Watch Company Observatory in 1910 to maintain scientifically precise times in their watches. The company produced many of the self-winding wristwatch movements made in the United States, beginning with the 607 and 618 calibers (which were bumper wind) and the calibers 760 and 761 (30 and 27 jewels respectively).

5. Watch - Wikipedia

   en.wikipedia.org/wiki/Watch

   The first self-winding mechanism was invented for pocket watches in 1770 by Abraham-Louis Perrelet, [57] but the first "self-winding", or "automatic", wristwatch was the invention of a British watch repairer named John Harwood in 1923. This type of watch winds itself without requiring any special action by the wearer.

6. Westclox - Wikipedia

   en.wikipedia.org/wiki/Westclox

   The Westclox company was a major manufacturer of dollar watches. It started production of an inexpensive, back-winding pocket watch in 1899, which was intended to be affordable to any working person. The company continued to produce cheap pocket watches into the 1990s.

7. Futurematic - Wikipedia

   en.wikipedia.org/wiki/Futurematic

   The Futurematic is a self-winding [1] wrist watch without a crown. It was manufactured between 1951 and 1959 by the Swiss watch manufacturer Jaeger-LeCoultre. The Futurematic was the world's first watch without a crown for winding the mainspring, having a flat crown on the back that was used solely for setting the time. [2]