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2. Automatic quartz - Wikipedia

   en.wikipedia.org/wiki/Automatic_quartz

   Today Seiko offers a wide range of watches with various Kinetic movements. The top of the line is the caliber 9T82, included in Sportura (international brand) and PROSPEX (only marketed in Japan) Collection. It is sold in limited volume at a price range of about US$3000 which makes it one of the most expensive automatic quartz watches. Kinetic ...

3. Seiko's Delightful Dive Watch-Inspired Alarm Clocks Are ... - AOL

   www.aol.com/seikos-delightful-dive-watch...

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4. Seiko - Wikipedia

   en.wikipedia.org/wiki/Seiko

   In 1968, Seiko introduced three ten beat (ten ticks per second) calibers, the automatic caliber 61GS, the manual winding 45GS [46] and 19GS [47] for women's watch. The 61GS was Japan's first automatic ten beat watch, and it was the most accurate mechanical watch due to the high beat calibers. [ 48 ]

5. Pulsar (watch) - Wikipedia

   en.wikipedia.org/wiki/Pulsar_(watch)

   Pulsar P4 Time Computer with LED display ref. 3215-2 mens stainless steel watch circa 1975 Made in the USA A Pulsar LED watch from 1976. In 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 ...

6. Astron (wristwatch) - Wikipedia

   en.wikipedia.org/wiki/Astron_(wristwatch)

   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 (equivalent to $10,386 in 2023)) each (at the time, equivalent to ...

7. Watch - Wikipedia

   en.wikipedia.org/wiki/Watch

   The commercial introduction of the quartz watch in 1969 in the form of the Seiko Astron 35SQ, and in 1970 in the form of the Omega Beta 21 was a revolutionary improvement in watch technology. In place of a balance wheel, which oscillated at perhaps 5 or 6 beats per second, these devices used a quartz-crystal resonator , which vibrated at 8,192 ...

8. Citizen Watch - Wikipedia

   en.wikipedia.org/wiki/Citizen_Watch

   With a Miyota 8203 movement, Fugu automatic watches can be hand-wound – a significant advantage over their original competitor (Seiko's now discontinued SKX). [15] Among the world's ISO-certified watches for professional diving, the Fugu remains the mechanical watch in continuous production for the longest.

9. List of watchmakers - Wikipedia

   en.wikipedia.org/wiki/List_of_watchmakers

   John Harwood (1893–1965), English inventor and clockmaker, automatic wrist watch, Fortis watch brand. Rasmus Sørnes (1893–1967), Norwegian radio technician and clockmaker, Sola, astronomical clock. Paul Behrens (1893–1984), German clockmaker, Lübeck, astronomical clock.