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2. 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 ...

3. Automatic quartz - Wikipedia

   en.wikipedia.org/wiki/Automatic_quartz

   The first such watch was released in Germany in January 1988 and April of the same year in Japan (under the name Auto-Quartz). [3] The watches had an average monthly rate of ±15 sec and provided 75 hours of continuous operation when fully powered. Early automatic quartz movements were called AGS (Automatic Generating System).

4. Ronda (watchmaker) - Wikipedia

   en.wikipedia.org/wiki/Ronda_(watchmaker)

   Ronda AG is a Swiss manufacturer of quartz and mechanical watch movements. [1] The company was founded in 1946 by William Mosset and the current headquarters are located in Lausen, Basel-Landschaft. [2] Their movements are used in a variety of watches around the world, including RSC pilot's watches, Shinola, Prim and Mondaine watches. [3] [4 ...

5. Miyota (watch movement manufacturer) - Wikipedia

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

   Miyota is a brand of mechanical and quartz watch movements manufactured by Citizen Watch Manufacturing Co., Ltd. (CWMJ), a subsidiary of Citizen Watch. [1]In 1959 Miyota Precision Co., Ltd. was established in the town of Miyota, Nagano Prefecture, Japan as an assembly factory for wristwatches.

6. Quartz crisis - Wikipedia

   en.wikipedia.org/wiki/Quartz_crisis

   Quartz movement of the Seiko Astron, 1969. The quartz crisis (Swiss) or quartz revolution (America, Japan and other countries) was the advancement in the watchmaking industry caused by the advent of quartz watches in the 1970s and early 1980s, that largely replaced mechanical watches around the world.

7. Movement (clockwork) - Wikipedia

   en.wikipedia.org/wiki/Movement_(clockwork)

   Each specific watch movement is called a caliber. [3] The movement parts are separated into two main categories: those belonging to the ébauches and those belonging to the assortments. [2] In watch movements the wheels and other moving parts are mounted between two plates, which are held a small distance apart with pillars to make a rigid ...