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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 ...
Original file (Ogg Theora video file, length 1 min 0 s, 1,280 × 720 pixels, 3.25 Mbps, file size: 23.21 MB) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
Video of the rotor turning in an automatic wristwatch having a glass back, when the watch is moved by hand. An automatic watch, also known as a self-winding watch or simply an automatic, is a mechanical watch where the natural motion of the wearer provides energy to wind the mainspring, making manual winding unnecessary if worn enough. [1]
ETA designs and manufactures mechanical and automatic watches, watch movements and watch ébauches.Although the company produces finished watches and movements, ETA specializes in the production of ébauche movements used both in watches of sister Swatch Group subsidiary brands and in the watches of competitors, including brands owned by Compagnie Financière Richemont S.A. and others.
The Chronomat was a patented design introduced in 1940 by Willy Breitling and the world's first two-pusher chronograph wristwatch. [6] [7] Breitling Chronomat men's watch ref. B13050 Made in Switzerland
An Ohio community is grieving the loss of a 4-year-old girl police say was killed by a stray bullet during an exchange of gunfire. Rosalie Martin, 4, was killed in the shooting in St. Clair ...