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2. Pulsar (watch) - Wikipedia

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

   A modern analog Pulsar watch. Pulsar is a watch brand and currently a Seiko Watch Corporation of America (SCA) division. Pulsar was the world's first electronic digital watch. Current Pulsar watches are mostly analog and use the same movements in Seikos such as the 7T62 quartz chronograph movemen

3. Seiko - Wikipedia

   en.wikipedia.org/wiki/Seiko

   In 1978, Seiko introduced the world's first quartz diver's watch with a water resistance of 600 meters; in 1982, the world's first wristwatch with a television; in 1983, the world's first wristwatch with a record-and-play function and an analog quartz chronograph; in 1984, the world's first wristwatch computer; and in 1986, the world's first ...

4. Quartz clock - Wikipedia

   en.wikipedia.org/wiki/Quartz_clock

   It is also possible for quartz clocks and watches to have their quartz crystal oscillate at a higher frequency than 32 768 (= 2 15) Hz (high frequency quartz movements [4]) and/or generate digital pulses more than once per second, to drive a stepping motor powered second hand at a higher power of 2 than once every second, [5] but the electric ...

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

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

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6. Solar-powered watch - Wikipedia

   en.wikipedia.org/wiki/Solar-powered_watch

   Seiko LCD Solar Alarm Chronograph A156-5000, 1978: Seiko's first solar-powered watch. A solar-powered watch or light-powered watch is a watch that is powered entirely ...

7. Chronograph - Wikipedia

   en.wikipedia.org/wiki/Chronograph

   A chronograph is a specific type of watch that is used as a stopwatch combined with a display watch. A basic chronograph has hour and minute hands on the main dial to tell the time, a small seconds hand to tell that the watch is running, and a seconds hand on the main dial usually equipped with a sweeping movement for precision accompanied by a ...