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  2. Incabloc shock protection system - Wikipedia

    en.wikipedia.org/wiki/Incabloc_shock_protection...

    Jewel bearing of a balance wheel, supported by a lyre-shaped spring. The Incabloc shock protection system is the trade name for a spring-loaded mounting system for the jewel bearings that support the balance wheel in a mechanical watch, to protect the wheel's delicate pivots from damage in the event of physical shock, such as if the watch is dropped.

  3. Seiko - Wikipedia

    en.wikipedia.org/wiki/Seiko

    The King Seiko 56KS movements were the same as those used in Grand Seiko’s 56GS series, Seiko Lord Matic watches, and Seiko chronometers. It was also introduced in 1968 and featured an automatic, 28,800 bph movement with 25 jewels and a 47-hour power reserve.

  4. 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 ...

  5. Quartz crisis - Wikipedia

    en.wikipedia.org/wiki/Quartz_crisis

    [4] [17] On 25 December 1969, Seiko unveiled the Astron, the world's first quartz watch, which marked the beginning of the quartz revolution. [3] [4] [16] [18] The first Swiss quartz analog watch – the Ebauches SA Beta 21 – arrived at the 1970 Basel Fair. [16] [19] The Beta 21 was released by numerous manufacturers including the Omega ...

  6. 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

  7. Jean Lassale - Wikipedia

    en.wikipedia.org/wiki/Jean_Lassale

    Jean Lassale was a Swiss watch company that designed the Calibre 1200, featuring the thinnest mechanical watch movement: 1.2 mm. [1] In the 1970s, Pierre Mathys, [2] master watchmaker in La Chaux-de-Fonds, designed and built the prototype of a revolutionary watch caliber, with the goal of making the thinnest watch in the world.

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