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Last year, the brand made a strategic, dial change, removing “Seiko” from the 12 o’clock position and replacing it with “GS” that had been set at 6 o’clock. Naito says it made a huge ...
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 ...
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 ...
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 ...
Okuhara Seiko. Okuhara Seiko (奥原 晴湖, 1837–1913) Okuhara Seiko was a Literati artist in Japan in the late 1800s. They became a leading artist in Japan founding an art school and displaying their art throughout the country. In 1891, at the age of fifty-five, Seiko decided to retire to a country village.
The Yokosuka MXY-7 Ohka (櫻花 [1], Ōka, "cherry blossom"; 桜花 in modern orthography) is a purpose-built, rocket-powered human-guided kamikaze attack-aircraft [2] deployed by Japan against Allied ships in the Pacific Ocean theater toward the end of World War II.