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2. Automatic watch - Wikipedia

   en.wikipedia.org/wiki/Automatic_watch

   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]

3. IWC Schaffhausen - Wikipedia

   en.wikipedia.org/wiki/IWC_Schaffhausen

   In response to ETA SA's cut in supply of ébauche movements, IWC developed their new manufacture automatic and chronograph movements, Caliber 32000, Caliber 69000 as in-house designed replacements and are widely used in the Pilot, Portuguese and Ingenieur collections. Richemont Group's Montblanc MB 25.10 movement was also based on IWC's 69370. [27]

4. List of ETA Movements - Wikipedia

   en.wikipedia.org/wiki/List_of_ETA_Movements

   ETA Mechanical movements Caliber Product Line Winding Diameter Height Jewels Frequency Running time VPH Hz; 2671 [1] Mecaline automatic 17.2 4.8 25 28800 4 38 2678 [2] Mecaline automatic 17.2 5.35 25 28800 4 38 2000-1 [3] Mecaline Specialities automatic 19.4 3.6 20 28800 4 40 2681 [4] Mecaline automatic 19.4 4.8 25 28800 4 38 2094 [5]

5. Complication (horology) - Wikipedia

   en.wikipedia.org/wiki/Complication_(horology)

   A timepiece indicating only hours, minutes and seconds is known as a simple movement. Common complications include date or day-of-the-week indicators, alarms, chronographs (stopwatches), and automatic winding mechanisms.

6. ETA SA - Wikipedia

   en.wikipedia.org/wiki/ETA_SA

   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.

7. 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 ...