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2. Citizen Watch - Wikipedia

   en.wikipedia.org/wiki/Citizen_Watch

   In 2010, Miyota (Citizen Watch) of Japan introduced a newly developed movement that uses a three-prong quartz crystal torsional resonator, with eight times the vibration frequency of a traditional quartz watch, for the Precisionist or Accutron II line, a new type of quartz watch which is claimed to be accurate to +/− 10 seconds a year and has ...

3. Bulova - Wikipedia

   en.wikipedia.org/wiki/Bulova

   In 2010, Bulova introduced the Precisionist, a new type of quartz watch with a higher frequency crystal (262 144 Hz, eight times the industry standard 32 768 Hz) which is claimed to be accurate to ±10 seconds per year (0.32 ppm) and has a smooth sweeping seconds hand like automatic watches rather than the typical quartz watch seconds hand that ...

4. Tachymeter (watch) - Wikipedia

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

   Tachymeter scale on a Citizen watch bezel. A tachymeter (pronounced / t æ ˈ k ɪ m ə t ər /) is a scale sometimes inscribed around the rim of an analog watch with a chronograph.It can be used to conveniently compute the frequency in inverse-hours of an event of a known second-defined period, such as speed (distance over hours) based on travel time (distance over speed), or measure distance ...

5. Miyota (watch movement manufacturer) - Wikipedia

   en.wikipedia.org/wiki/Miyota_(watch_movement...

   Miyota produces various 'standard' and 'premium' grade mechanical movements for automatic wristwatches.. The Miyota 8215 is an entry level non-hacking-earlier versions twenty-one jewel three-hand with date automatic wristwatch movement with a uni-directional winding system (left rotation) with an accuracy of -20 to +40 seconds per day, and a power reserve of over 40 hours.

6. Automatic quartz - Wikipedia

   en.wikipedia.org/wiki/Automatic_quartz

   'Seiko Quartz Automatic Generating System' (A.G.S. = early Kinetic), Perpetuum Nobile (produced in 1989), Cal. 7M45, No. 246 of 700 Seiko AGS SCUBA Diver 200m 5M23-6A60, 1993 Automatic quartz is a collective term describing watch movements that combine a self-winding rotor mechanism [ 1 ] (as used in automatic mechanical watches ) to generate ...

7. Watch - Wikipedia

   en.wikipedia.org/wiki/Watch

   In 2010, Miyota (Citizen Watch) of Japan introduced a newly developed movement that uses a 3-pronged quartz crystal that was exclusively produced for Bulova to be used in the Precisionist or Accutron II line, a new type of quartz watch with ultra-high frequency (262.144 kHz) which is claimed to be accurate to +/− 10 seconds a year and has a ...