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  2. Automatic quartz - Wikipedia

    en.wikipedia.org/wiki/Automatic_quartz

    'Seiko Quartz Automatic Generating System' (A.G.S. = early Kinetic), Perpetuum Nobile (produced in 1989), Cal. 7M45, No. 246 of 700 Seiko AGS SCUBA Diver 200m 5M23-6A60, 1993 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 ...

  3. Seiko - Wikipedia

    en.wikipedia.org/wiki/Seiko

    In 1978, Seiko introduced the world's first quartz diver's watch with a water resistance of 600 meters; in 1982, the world's first wristwatch with a television; in 1983, the world's first wristwatch with a record-and-play function and an analog quartz chronograph; in 1984, the world's first wristwatch computer; and in 1986, the world's first ...

  4. Diving watch - Wikipedia

    en.wikipedia.org/wiki/Diving_watch

    A diving watch, also commonly referred to as a diver's or dive watch, is a watch designed for underwater diving that features, as a minimum, a water resistance greater than 1.1 MPa (11 atm), the equivalent of 100 m (330 ft). The typical diver's watch will have a water resistance of around 200 to 300 m (660 to 980 ft), though modern technology ...

  5. Chronograph - Wikipedia

    en.wikipedia.org/wiki/Chronograph

    A 'Seiko Automatic-Chronograph' Cal. 6139, the Pogue Seiko, the first automatic chronograph in space [27] [28] Seiko Flyback-Automatic-Chronograph Cal. 7016, the so-called „Seiko-Monaco“ (1976) The original chronographs that Rieussec invented were called tape chronographs.

  6. Spring Drive - Wikipedia

    en.wikipedia.org/wiki/Spring_Drive

    The Spring Drive uses a conventional mainspring [3] and barrel [4] along with automatic and/or stem winding to store energy, just as in a mechanical watch. [3] However, the escapement and balance wheel in mechanical watches is replaced by Seiko's Tri-synchro Regulator system, a phase-locked loop wherein a rotor, which Seiko refers to as a "glide wheel", is powered by the mainspring barrel via ...

  7. Watch - Wikipedia

    en.wikipedia.org/wiki/Watch

    A Grand Seiko Automatic watch. ... A chronograph is a watch with an added duration timer, ... Seiko 7002–7020 Diver's 200 m on a 4-ring NATO style strap.

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