- Racer-X (Online)
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Called the Pulsar Time Computer, it was the world’s first digital watch. It was unlike any watch that Carson, or anyone else, had ever seen before. It had no hands or dial. Instead, it had a blank, red, rectangular computer-like “time screen” (Hamilton’s term), made of synthetic ruby, set in a gold cushion-shaped case. To tell the time, you pushed a button on the side of the case. Three (or four) red digits, indicating the hours and minutes, appeared on the screen for slightly more than one second and then blinked off. If you pressed the button longer, red seconds digits replaced the hours and minutes digits on the screen and then disappeared."
Article at HODINKEE