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A 0.80mm thin flexible wristwatch with an E Ink display housed in a single piece of stainless steel.
The CST-01 is assembled by laminating thin, flexible components into a 0.5mm pocket etched into a single piece of flexible stainless steel. In order to make the watch as thin and minimal as possible, there are no buttons or knobs on the watch itself. Charging and setting the time is done on the included base station, and for those outside the US who prefer a 24 hour time format, this is also user selectable from the base station.
The CST-01 weighs less than 5 pennies at 12 grams. Because of the comfort, weight and thinness, if we didn’t want to keep looking at it, we would forget we were wearing it. Everything about the design and engineering was thoroughly considered for its functional and aesthetic benefits. The CST-01 is the most minimal expression of a timepiece, It’s ‘time’ embedded in a band.
E Ink Screen
The concept of the watch was inspired by the qualities of E Ink segmented displays; ultra thinness, readability, ruggedness, flexibility, and low power. We developed our own segmented font designed for E Ink screens to make the numbers look great.
Powered by a Thinergy “Micro-Energy Cell”
The micro energy cell (MEC) that powers the watch is incredible in its own right. It can be recharged 10,000 times and lasts over 15 years. The watch can charge in 10 minutes and we expect the watch to be able to function for a month between charges. The MEC contains no toxic chemicals or heavy metals providing safety while being eco-friendly.
Driven by a Seiko Epson Microcontroller
The Seiko Epson System on a Chip (SoC) allows us to do everything we need to in a tiny package and sips power in order for us to achieve our desired battery life.
CST-01: The World’s Thinnest Watch