2010年02月03日
時計の開発評価
The total is well known that watch play a more and more important role in our daily life, In addition to the time, modern watches often display the day, date, month and year, and electronic watches may have many other functions to us, such as fun, communications and so on. So we will see the all kind of mp3 watch, mp4 watch, mp5 watch, mobile phone watch, camera watch……
Today, let us review the watch development, and explore the watch knowledge together !
The first timepieces to be worn, made in 16th century Europe, were transitional in size between clocks and watches. Styles changed in the 1600s and men began to wear watches in pockets instead of as pendants.A great leap forward in accuracy occurred in 1657 with the addition of the balance spring balance to the balance wheel. The Enlightenment view of watches as scientific instruments brought rapid advances to their mechanisms. The lever escapement invented by Thomas Mudge in 1759 and improved by Josiah Emery in 1785, gradually came into use from about 1800 onwards, chiefly in Britain. At Vacheron Constantin, Geneva, Georges-Auguste Leschot (1800-1884), pioneered in the field of interchangeability in clockmaking by the invention of various machine tools.During the 20th century, the mechanical design of the watch became standardized. At the beginning of the century wristwatches were mostly worn by women. The first generation electric watches came out during 1950-1969. The introduction of the quartz watch in 1969 was a revolutionary improvement in watch technology.
Watch has gone through a long process of development. From the above description we know, watches in every era, with different characteristics, different consumer groups. At the same time, as the further development of watch technology, now we see mobile phone watches, music watch, camera watch, multifunctional is really amazing !
As China's most influential electronic products wholesalers-eSalesChina, engaged in the watch wholesale and sales more than three years, and its products are exported to Europe and America, welcomed by customers. In particular recently it launched mobile phone watch with complete functions, good quality and price, it is really a good choice for you!
1.5 inch Touch Screen Golden Metal Crust Watchs Mobile Phone
Wholesale 1.5 inch Touch Screen Golden Metal Crust Watchs Mobile Phone with Bluetooth, Camera from China Cellphone Online Shops.
Waterproof Wrist Watch Mobile Phone + Camera + Bluetooth
Wholesale 1.6 inch Waterproof Wrist Watch Mobile Phone + Camera + Bluetooth for China Cell Phone Online Shops.
White + pink Wrist MP3 Phone Watch with Bluetooth and Camera
Wholesale White + pink Wrist MP3 Phone Watch with Bluetooth and Camera from China cell phone watch store.
esaleschina is the leading china electronics wholesale.(http://www.esaleschina.com/)
With the excellent work-group, esaleschina enjoys good experience of research, produce and sales at the digital series. Moreover, esaleschina has the powerful technology and advanced equipment. All of these make esaleschina playing an important part in the digital & electronic line!
We make the efforts on products that are with new series, marketable models and best quality. Therefore, all of them are popular in Europe, Africa, America and Southeast Asia! esaleschina has cooperated with tens of close factories, so the price that we offer to the consumer is directly from the Chinese Factory, all items we list on this website is brand new and original with sealed box, and comes with official warranty, Shopping with us is safe and secure .
Our goal is 100% customer satisfaction. And we offer 30-day Money Back GuaranteeShenzhen City, Guangdong Province, China.
Today, let us review the watch development, and explore the watch knowledge together !
The first timepieces to be worn, made in 16th century Europe, were transitional in size between clocks and watches. Styles changed in the 1600s and men began to wear watches in pockets instead of as pendants.A great leap forward in accuracy occurred in 1657 with the addition of the balance spring balance to the balance wheel. The Enlightenment view of watches as scientific instruments brought rapid advances to their mechanisms. The lever escapement invented by Thomas Mudge in 1759 and improved by Josiah Emery in 1785, gradually came into use from about 1800 onwards, chiefly in Britain. At Vacheron Constantin, Geneva, Georges-Auguste Leschot (1800-1884), pioneered in the field of interchangeability in clockmaking by the invention of various machine tools.During the 20th century, the mechanical design of the watch became standardized. At the beginning of the century wristwatches were mostly worn by women. The first generation electric watches came out during 1950-1969. The introduction of the quartz watch in 1969 was a revolutionary improvement in watch technology.
Watch has gone through a long process of development. From the above description we know, watches in every era, with different characteristics, different consumer groups. At the same time, as the further development of watch technology, now we see mobile phone watches, music watch, camera watch, multifunctional is really amazing !
As China's most influential electronic products wholesalers-eSalesChina, engaged in the watch wholesale and sales more than three years, and its products are exported to Europe and America, welcomed by customers. In particular recently it launched mobile phone watch with complete functions, good quality and price, it is really a good choice for you!
1.5 inch Touch Screen Golden Metal Crust Watchs Mobile Phone
Wholesale 1.5 inch Touch Screen Golden Metal Crust Watchs Mobile Phone with Bluetooth, Camera from China Cellphone Online Shops.
Waterproof Wrist Watch Mobile Phone + Camera + Bluetooth
Wholesale 1.6 inch Waterproof Wrist Watch Mobile Phone + Camera + Bluetooth for China Cell Phone Online Shops.
White + pink Wrist MP3 Phone Watch with Bluetooth and Camera
Wholesale White + pink Wrist MP3 Phone Watch with Bluetooth and Camera from China cell phone watch store.
esaleschina is the leading china electronics wholesale.(http://www.esaleschina.com/)
With the excellent work-group, esaleschina enjoys good experience of research, produce and sales at the digital series. Moreover, esaleschina has the powerful technology and advanced equipment. All of these make esaleschina playing an important part in the digital & electronic line!
We make the efforts on products that are with new series, marketable models and best quality. Therefore, all of them are popular in Europe, Africa, America and Southeast Asia! esaleschina has cooperated with tens of close factories, so the price that we offer to the consumer is directly from the Chinese Factory, all items we list on this website is brand new and original with sealed box, and comes with official warranty, Shopping with us is safe and secure .
Our goal is 100% customer satisfaction. And we offer 30-day Money Back GuaranteeShenzhen City, Guangdong Province, China.
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