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2. Eco-Drive - Wikipedia

   en.wikipedia.org/wiki/Eco-Drive

   Later specialized tool watch designs were introduced like the Promaster Eco-Drive Professional Diver 1000M Titanium BN7020-09E in 2017. This is a very large watch, the titanium watch case has a diameter of 52.2 mm and thickness of 22 mm and features a helium release valve, designed for mixed gas saturation diving at great depths. [6] [7] [8]

3. Fossil Wrist PDA - Wikipedia

   en.wikipedia.org/wiki/Fossil_Wrist_PDA

   The development of the Fossil Wrist PDA began in 1999 when engineer Donald Brewer and Fossil Product Manager Jeff Bruneau licensed a read-only version of the Palm OS from Palm Source and tried to make it work in a watch. [1] For the first year of development, Brewer struggled to make the watch small enough to be wearable.

4. List of watch manufacturers - Wikipedia

   en.wikipedia.org/wiki/List_of_watch_manufacturers

   This list is a duplicate of Category:Watch brands, which will likely be more up-to-date and complete. Manufacturers that are named after the founder are sorted by surname. Manufacturers that are named after the founder are sorted by surname.

5. Smartwatch - Wikipedia

   en.wikipedia.org/wiki/Smartwatch

   The first digital watch was the Pulsar, introduced by the Hamilton Watch Company in 1972. The "Pulsar" became a brand name, and would later be acquired by Seiko in 1978. In 1982, a Pulsar watch (NL C01) was released which could store 24 digits, likely making it the first watch with user-programmable memory, or the first "memorybank" watch.

6. List of watchmakers - Wikipedia

   en.wikipedia.org/wiki/List_of_watchmakers

   first wrist watch. Georges Louis Ruedin (1870–1935), Swiss watch producer, Berner Jura, director of the Société Horlogère Reconvilier. Jens Olsen (1872–1945), Danish clockmaker, Ribe, astronomical world clock in Copenhagen. Jämes Pellaton (1873–1954), Swiss watchmaker, Le Locle, tourbillon.

7. Electric watch - Wikipedia

   en.wikipedia.org/wiki/Electric_watch

   Watches using this technology include Timex M87/Laco 882, Citizen X-8 series and Seiko Electronic 31A. Another common example is ESA Dynotron cal. 9150. Tuning fork watches: Instead of a balance wheel, these watches used a tuning fork driven by a solenoid powered by a one-transistor oscillator circuit and no mechanical contacts. [8]