New Fashion Designer Gold Dial Mens/Women's Wrist Watch

Deskription:
Item specifics - Wristwatches
Merk         : Quartz                     Type          : Fashion            
Age           : 2009 s/d Sekarang Casing       :  Stainless Steel  
Brand        : Rosra                     Features    : Water Resistant     
Gender      : Man/women          Condition   : New
Price : US$ 2.34

Elegant Men Black Steel Quartz Wrist Watch High Quality

Deskription:
Item specifics - Wristwatches
Merk         : Quartz                     Type          : Fashion             
Age           : 2009 s/d Sekarang Casing       :  Stainless Steel   
Brand        : Sinobi                      Features    : Water Resistant     
Gender      : Man                        Condition   : New
Price : US$ 2.34

Quartz Watch, Bussines Watch, Men's Fashion

Description:
The good quality
The lowest price for wholesale
Best service for custamer
Swiss Movement

Integrated Circuit Watch Quartz

The integrated circuit (IC or chip) is a minaturized electronic circuit.

An integrated circuit is an assembly of interconnected components on a small semiconductor chip, usually made of silicon. One chip can contain millions of microscopic components and perform many functions. These components are fabricated together on a slice of silicon crystal (known as a wafer) that contains many ICs arranged in rows. Manufacture of ICs involves a succession of processes, including photolithography, high-temperature diffusion, oxidation, and metallisation. The wafer is then separated into chips, which are individually packaged.

The IC was invented independently by two researchers.

The integrated circuit was invented in the United States in different forms by Jack Kilby of Texas Instruments and Robert Noyce at Fairchild Semiconductor. With this new semiconductor technology, computers, communications devices, and all sorts of consumer electronics became possible.

The integrated circuit controls the functions of the quartz watch.

In all quartz watches, the IC makes the quartz crystal oscillate, divides the quartz frequency down to one pulse per second, and drives the display. Many more functions can be added using a microprocessor, making today's quartz watches more like dedicated microcomputers.

Both Swiss and Japanese watch companies were involved in developing ICs suitable for use in watches.

The first IC used in a watch was developed in the 1960s in a Swiss laboratory, CEH. The chip's power consumption had to be drastically reduced in order to allow battery life of at least one year. In the first quartz watch, the Beta 21, a single IC containing about 110 components managed all electronic functions of the watch, including quartz crystal excitation, frequency division, and motor drive.

In 1970 the Seiko 36SQC was introduced and was the first quartz watch to use a CMOS chip (a low energy integrated circuit invented at Fairchild in 1963). Today's quartz watches all use CMOS technology, with chips containing 100,000 components and more. They combine microprocessor, memory and analog functions, and act like dedicated microcomputers.

The Battery Watch

Batteries generate electricity through an electrochemical reaction.

A watch battery consists of a single cell. It contains electrodes and an electrolyte that together convert chemical energy into electrical energy. Because different watches have different requirements with respect to voltage, energy and size, batteries vary considerably. The most popular are silver oxide (1.5v) and lithium (3v) cells.

The first miniature batteries were developed during WWII.

The microelectronics industry gave impulse to the development of small batteries. Miniature batteries were developed during World War II by Samuel Ruben and manufactured by P.R. Mallory (this pair later formed the Mallory Battery Company). But they were neither leak-proof nor long-lasting enough for use in watches.

A special battery had to be invented for the first electric watch.

Early efforts to develop a watch battery were conducted by a team of researchers at Hamilton Watch Company (led by chief chemist Phil Lichty, and including Harold Morgan, Wilmer Gingrich and Edgar Long). When these efforts failed, Hamilton joined forces with National Carbon Company (later Union Carbide) in 1954 to develop a battery for Hamilton's first electric watch, the Ventura.

Time Displays The Quartz Watch

The first quartz watches had analog dials.

The first quartz wristwatch prototypes, developed in Swiss and Japanese laboratories in the 1960s, had an analog display with rotating hands. Despite their similarity to mechanical watches, it was necessary to develop a new technology to transform the timed intervals provided by the quartz crystal into mechanical energy to rotate the hands. A small stepping motor was created to drive the hands using very low power, guaranteeing a battery life of at least one year.

Solid state technology enabled the development of digital displays.

Electronic displays with time displayed in digits, rather than with hands and dial, caused a sensation when first introduced. The first electronic display, introduced in 1970 on the Hamilton Pulsar, used light-emitting diodes (LEDs) to indicate the time of day in flashing red digits at the push of a button.
At the same time, other researchers were working on the development of liquid crystals for use in digital watch displays. Early liquid crystal displays suffered from high power consumption and poor readability. Improvements in LCD technology eliminated these problems and by the late 1970s LCD watches had become more popular than LEDs.

Digital displays allow the representation of much more than just the current time. Multifunctional watches may also indicate pulse rate, temperature, numerical data, and even short messages.

By 1986, consumer interest shifted away from watches with digital displays back to the more traditional analog dial.

Black Quartz Analog Mens Ladies Steel Wrist Watch NEW

Deskription:
Item specifics - Wristwatches
Merk         : Quartz                   Type          : Fashion               
Age           : 2000 s/d Sekarang Casing       :  Stainless Steel     
Brand        : Sinobi                    Features    : Water Resistant       
Gender      : Man                      Condition   : New
Price : US$ 15.99

New black Ladies Mens Steel Quartz Sport Wrist Watch

Deskription:
Item specifics - Wristwatches
Merk         : Quartz                   Type          : Fashion              
Age           : 2000 s/d Sekarang Casing       :  Stainless Steel    
Brand        : Sinobi                    Features    : Water Resistant     
Gender      : Man                      Condition   : New
Price : US$ 0.99

LADIES ETIENNE AIGNER STUNNING LEATHER RECTANGLE WATCH

 

Description:
Item specifics - Wristwatches
Merk         : Quartz                   Type          : Fashion             
Age           : 2000 s/d Sekarang Casing       :  Stainless Steel   
Brand        : Etienoe Aigner        Features    : Water Resistant     
Gender      : Women                 Condition   : New

Price   :  US$ 69.99

ETIENNE AIGNER___ANALOG/QUARTZ LADIES WATCH

Description :
Item specifics - Wristwatches
Type          : Fashion                Age         :     1970-1999
Merk         : Quartz                 Casing      :  Stainless Steel  
Brand        : Etienne Aigner     Features    : Water Resistant     
Gender      : Man                   Condition   : New

Price         :  US$ 22.50

               

VINTAGE ETIENNE AIGNER LADIES APRICOT FACED WRIST WATCH

Description:
Item specifics - Wristwatches
Type          : Luxury                  Age        :     1970-1999           
Merk         : Quartz                 Casing      :  Stainless Steel 
Brand        : Etienne Aigner     Features    : Water Resistant     
Gender      : women                Condition   : Used
Price   :    US$ 19.95
               13d 0h 53m