Few people have heard of it, yet many consider John Blankenbaker's KENBAK-1 to be the first commercial personal computer.

Koss introduced these headphones over 40 years ago, and they remain affordable favorites to this day.

BWC Liquid Crystal Quartz - The First LCD Wristwatch

BWC

Swiss watchmaker BWC announced their Liquid Crystal Quartz watch in 1971, intending it to be the first solid-state watch on the market. Technical setbacks prevented them from releasing it until 1973 1972,  and the LED-based Pulsar P1 beat them to the punch. The BWC Quartz was priced at a stratospheric 1100 Deutschmarks and used the Dynamic Scattering principle to drive the display, unlike modern TN Field Effect timepieces. Even though LCD watches went on to dominate the industry, this particular model cost BWC a fortune without making a dent in the marketplace.

I love the time changing mechanism, which involves a traditional-looking rotating crown. The huge case hides a transformer that was required to produce the 15 to 20 Volts required to drive the inefficient low contrast display. BWC predicted a display lifespan of ten years, but most still function today (unlike the Pulsar P1). Truth be told, I think these things look fantastic.

BWC Liquid Crystal Quartz

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