| 词条 | Pulsar (watch) |
| 释义 |
Pulsar is a brand of watch and currently a division of Seiko Watch Corporation of America (SCA). Pulsar was the world's first electronic digital watch. Today Pulsar watches are mostly analog and use the same movements in Seikos such as the 7T62 quartz chronograph movement. HistoryIn 1970, Pulsar was a brand of the American Hamilton Watch Company which first announced that it was making and bringing the LED watch to market. It was developed jointly by American companies Hamilton and Electro/Data Inc. In spring 1972,[1][2] the first Pulsar watch was marketed by Hamilton Watch (the parent company, not the Hamilton Watch Division). With an 18-carat gold case, the world's first all-electronic digital watch was also the first to use a digital display{{snd}}created with light-emitting diodes (LEDs).[3] A button was pressed to display the time. The first Pulsar initially sold for $2100 (${{Formatnum:{{Inflation|US|2100|1971|r=-2}}}} in {{Inflation-year|US}} dollars). In October 1972, the Potpourri segment in the issue of Playboy mentioned the first Pulsar{{snd}}and carried a photo. In 1975, a digital Pulsar with a built-in calculator (operated with small buttons) was released.[4] In 1978, Seiko Corporation acquired the Pulsar brand, it serves as Seiko's mid-grade offerings. See also
References1. ^Bertrand Hochet, Antonio J. Acosta, Manuel J. Bellido, Integrated circuit design. Springer, 2002, p.11. 2. ^Christian Piguet, Low-power electronics design. CRC Press, 2005, p.1–10. 3. ^{{cite web |url = http://invention.smithsonian.org/centerpieces/quartz/coolwatches/pulsar.html |title = Smithsonian Invention Centerpieces |publisher = Smithsonian Institution |deadurl = yes |archiveurl = https://web.archive.org/web/20110323064128/http://invention.smithsonian.org/centerpieces/quartz/coolwatches/pulsar.html |archivedate = 2011-03-23 |df = }} 4. ^E. Fred Schubert, Light-emitting diodes. Cambridge University Press, 2006, p.14 External links{{Commons category|Pulsar (watch)}}
1 : Watch brands |
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