In the past few months, we have covered plenty of cool watches here. You could always build your own with Arduino and other platforms. taifur has put together a guide that shows you how to build your own geeky watch. It shows time, date, and temperature in binary or digital format.
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The watch has two buttons to adjust time and display modes. You are going to need an Arduino UNO, 1.2 inch dot-matrix display, 2 x tactile buttons, a plastic wristband, a ATMEGA328P microcontroller, and a few other parts to get started.
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