In 1970, the American company HAMILTON introduced the world's first all-electronic wristwatch, a watch completely without mechanical components, called as "solid state". This watch displayed the time digitally, in digits with red active optoelectronic components, the light-emitting diodes (LED). The way this time was displayed was also the first real innovation in 500 years of watch development. The bright and high-contrast LED digit indicators, which are also visible in the dark, enabled completely new watch design concepts, which founded the so-called "space-age".
The LED watch also falls into the age of the first electronic calculators and was consequently referred to as the "time computer".The world's first computer wristwatch, solar wristwatch and alphanumeric wristwatch used an LED display.
Unfortunately, the era of these beautiful watches lasted only about 8 years. Due to the high power consumption, LED watches were not suitable for everyday use and were replaced by the LCD watches after a short time. Nevertheless, to my knowledge, there are more than 1,000 different models of these watches worldwide.
A very good variant, which combines the beauty of the bright red LED display with the required practicality of a wristwatch, was the so-called "Day & Night" watches, which contain both an LC display, which can constantly display the time, as well as an LED display, which displays the time at the touch of a button.
On this page I would like to introduce the LED watches of my collection.