Seiko, a Japanese company, has been a trademark watch manufacturing company for a long time. It started in the year 1881 under the name Seikosha. In the beginning, Seikosha produced wall clocks and made its first pocket watch in 1895. However, the name of the company was changed to Seiko in the year 1929.
The latest innovation of Sekio in watch industry is the Spring Drive. The idea of Spring Drive watch was first conceived in 1977 by Japanese engineer at the Suwa plant of SEIKO EPSON. It took Seiko about 28 years to manufacture first Spring Drive watch. To realize the Spring Drive dream, all the skills of SEIKO in the mechatronics of timekeeping have been utilized in both the traditional and electronic arenas.
This Spring Drive Seiko watch is in fact a state-of- art mechanical watch. All the mechanical watches use spring as a source of power, but the internal mechanism and working of Spring Drive is extremely unique and novel. It is manufactured using 300 years old technique of a mechanical escapement for the regulation of time. The result is a watch that avoids the age-old problems, associated with mechanical escapements such as hairsprings, delicate balance wheels, pallet forks, and escape wheels.
The Seiko Spring Drive watch is accurately mechanical and does not require any battery alternative or recharge. It is an auto-wind mechanical watch that uses contemporary expertise to standardize and gauge time. Similar to other mechanical watches to stock up energy, it uses mainspring, barrel, automatic winder and stem winding mechanism. A state-of-the-art system is used to standardize the time extent in this watch.
The watch has a Tri-synchro Regulator, which is used for unwinding of the main spring. This regulator is used to control three forms of energy that are the mechanical power of the mainspring, the electrical energy generated from this mechanical power, and the electromagnetic energy that governs the rotation of the glide wheel. These three forms of energy are basis of Spring Drive mechanism.
The energy produced by the rotation of glide wheel is used to drive a control circuit and quartz crystal oscillator. This, in turn, regulates the electro-mechanical braking of the glide wheel. The glide wheel completes 8 revolutions around the regulator per second. The frequency of a glide wheel is continuously regulated by applying a variable braking force. This delicate watch was first2005 Baselworld Exhibition. It was commercially released for sale on stores in September 2005 in the USA, Europe and elsewhere in the world.
The features of Spring Drive Watch
* Spring Drive Sonnerie caliber, 7R06 * Hour striking function: Three selectable modes, chiming every hour on the hour/chiming every three hours/silent * Hour repeating function * Power reserve indicators: Two, one each for the watch mechanism and the bell mechanism * Wind-up method: Manual-winding 12 o-clock direction for watch / 6 o-clock direction for the bell * Time accuracy: Monthly rate within 15 sec (equivalent to a daily rate of 1 sec) * Power reserve (watch mechanism): Approx. 48 hours * Power reserve (bell mechanism): More than 40 hours * Number of jewels: 88 * Movement diameter: 37.0 mm * Movement thickness: 7.05 mm * 617 components
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