The Nixie Watch was my final project for MIT's 6.131 Power Electronics course. It's powered by a small LiPo battery originally meant for the first gen iPod shuffle, and in the event the battery decides to explode the watch's glass and plastic front, and milled aluminum back, mean that it will double nicely as a DAPERS mine. The watch uses three Amperex ZM1000 displays and one long neon lamp for the leading one, because I only found three ZM1000s. The brain is an Arduino Pro-Mini, as many of my smaller form factor projects used before I either switched to Teensy or integrated an Arduino compatible microcontroller to the board itself. The flyback and level shifter boards were some of the last boards that I hand dremeled the traces for from bare clad board. I hand milled the aluminum case back and mystery plastic front cover, and with a bit of gorilla tape, it stayed on my wrist.