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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 ...
Grand Seiko is now being sold alongside such venerable names as Patek Philippe and Audemars Piguet, at a number of high-end retailers including London Jewelers and soon, Watches of Switzerland.
The Seiko Spacewalk is a limited edition Spring Drive model, designed specifically for use in space Spring Drive is a name given to a series of watch movements produced by Epson in Shiojiri . The concept of using a mainspring to power a quartz timing package was first conceived in 1977 by Yoshikazu Akahane (赤羽 好和) at Suwa Seikosha [1 ...
The Contrôle officiel suisse des Chronomètres(COSC), the Official Swiss Chronometer Testing Institute, is the institute responsible for certifying the accuracy and precision of Swiss watches. Background. [edit] Founded in its current form in 1973, the COSC is a Swiss non-profit organizationthat tests chronometersthat are Swiss Made.
Seiko Group (セイコー・グループ, Seikō Gurūpu) is a Japanese corporate group consisting of three core companies Seiko Group Corp. (Seiko), Seiko Instruments Inc. (SII) and Seiko Epson Corp (Epson). The three companies are linked by a common thread of timepiece technology. Epson has established its own brand image and rarely uses 'Seiko'.
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