Английская Википедия:Astron (wristwatch)
Шаблон:Short description Шаблон:Infobox Watch
The Astron wristwatch, formally known as the Seiko Quartz-Astron 35SQ, was the world's first "quartz clock" wristwatch. It is now registered on the List of IEEE Milestones as a key advance in electrical engineering.
History
The Astron was unveiled in Tokyo on December 25, 1969, after ten years of research and development at Suwa Seikosha (currently named Seiko Epson), a manufacturing company of Seiko Group. Within one week 100 gold watches had been sold, at a retail price of 450,000 yen (US$1,250) each (at the time, equivalent to the price of a medium-sized car).[1] Essential elements included a XY-type quartz oscillator of Шаблон:Val (8192 = 213), a hybrid integrated circuit, and a phase locked ultra-small stepping motor to turn its hands. According to Seiko, Astron was accurate to ±5 seconds per month or one minute per year, and its battery life was 1 year or longer.[2]
Anniversaries
In March 2010, at the Baselworld watch fair and trade show in Switzerland, Seiko previewed a limited edition new version of the watch and related designs of the original Astron watch, commemorating the fortieth anniversary in December 2009 of the debut of the Astron watch.[3]
Second Generation
Seiko used the "Astron" trademark again as "Seiko Astron" when it released a satellite radio-wave solar-powered wristwatch using GPS satellites in 2012.[4]
50th Anniversary Model
In 2019, Seiko released several limited edition Astron models to commemorate the 50th anniversary of the quartz Astron.[5][6] Among them, the model produced in a limited edition of 50 pieces (3.8 million yen) mimics the original case design and has a rough engraving pattern by craftsmen belonging to Epson's "Micro Artist Workshop".[6]
Footnotes
References
- ↑ The price of Toyota Corolla E10 was 432,000 yen (US$1,200) when it was released in 1966.[1] Шаблон:Webarchive
- ↑ Шаблон:Cite web
- ↑ "The new SEIKO Quartz Astron: A demonstration of SEIKO’s four decades of dedication to the perfection of the quartz watch", Шаблон:Webarchive Seiko press release, March 18, 2010
- ↑ 世界初。全世界39のタイムゾーンに対応。ソーラーGPSウオッチ<セイコー アストロン>衛星シグナルをキャッチし、地球上どこでも現在時刻をすばやく取得 - セイコープレスリリース（2012年3月5日）
- ↑ クオーツ アストロン 50周年記念限定モデル - セイコー
- ↑ 6,0 6,1 Шаблон:Cite news
Further reading
- "Seiko Quartz 35 SQ: The Seiko 35 SQ Astron was the first quartz watch on the market", Smithsonian Institution website.
- Thompson, Joe, "1969: Seiko’s Breakout Year", WatchTime Magazine, December 20, 2009
- Английская Википедия
- Страницы с неработающими файловыми ссылками
- Products introduced in 1969
- History of electronic engineering
- Watch models
- Seiko
- Epson
- Japanese inventions
- Страницы, где используется шаблон "Навигационная таблица/Телепорт"
- Страницы с телепортом
- Википедия
- Статья из Википедии
- Статья из Английской Википедии
