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2. Automatic watch - Wikipedia

   en.wikipedia.org/wiki/Automatic_watch

   By the 1960s, automatic winding had become widespread in quality mechanical watches. Because the rotor weight needed in an automatic watch takes up a lot of space in the case, increasing its thickness, some manufacturers of quality watches, such as Patek Philippe, continue to design manually wound watches, which can be as thin as 1.77 millimeters.

3. Mechanical watch - Wikipedia

   en.wikipedia.org/wiki/Mechanical_watch

   A mechanical watch is a watch that uses a clockwork mechanism to measure the passage of time, as opposed to quartz watches which function using the vibration modes of a piezoelectric quartz tuning fork, or radio watches, which are quartz watches synchronized to an atomic clock via radio waves.

4. Watch - Wikipedia

   en.wikipedia.org/wiki/Watch

   The first self-winding mechanism was invented for pocket watches in 1770 by Abraham-Louis Perrelet, [62] 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.

5. Keep Your Automatic Watches on Time With These Top ... - AOL

   www.aol.com/lifestyle/keep-automatic-watches...

   7-RT Triple Watch Winder. Think of the Scatola del Tempo as the Rolex of watch winders. The Italian brand was founded in 1989 in Lake Como, with the president of Patek Philippe as one of its first ...

6. Mainspring - Wikipedia

   en.wikipedia.org/wiki/Mainspring

   The mainspring of an automatic watch. The spring isn't firmly mounted on the left side, and will slip when fully wound. Self-winding or automatic watches, introduced widely in the 1950s, use the natural motions of the wrist to keep the mainspring wound. A semicircular weight, pivoted at the center of the watch, rotates with each wrist motion.

7. Abraham-Louis Perrelet - Wikipedia

   en.wikipedia.org/wiki/Abraham-Louis_Perrelet

   The Geneva Society of Arts reported in 1777 that fifteen minutes walking was necessary to wind the watch sufficiently for eight days, and the following year reported that it was selling well. [2] Perrelet is thus widely acknowledged as the inventor of the "automatic" watch. However, his watch probably used a weight pivoting at the side of the ...