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2. 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 ...

3. Seiko - Wikipedia

   en.wikipedia.org/wiki/Seiko

   Some Grand Seiko timepieces also incorporate the company's Spring Drive movement, a movement that is a combination of both automatic and quartz timekeeping methods, leading to unparalleled accuracy in the world of automatic wristwatches. The most famous example is the SBGA011 Grand Seiko "Snowflake", housing the 9R Spring Drive movement. With ...

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. Grand Seiko's Grand Plan to Win Over Western Watch Lovers - AOL

   www.aol.com/news/grand-seiko-apos-grand-plan...

   Grand Seiko's Grand Plan to Win Over Western Watch Lovers

6. Grand Seiko Dives Back Into the ’60s for Its Two ... - AOL

   www.aol.com/lifestyle/grand-seiko-just-unveiled...

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7. Watch - Wikipedia

   en.wikipedia.org/wiki/Watch

   A Grand Seiko Automatic watch A self-winding or automatic watch is one that rewinds the mainspring of a mechanical movement by the natural motions of the wearer's body. The first self-winding mechanism was invented for pocket watches in 1770 by Abraham-Louis Perrelet, [ 57 ] but the first " self-winding ", or "automatic", wristwatch was the ...