Remember those nifty calculator watches from the 80s/90s? Well, this person decided to build a followup called the “uWatch”. It’s touted as the “world’s most powerful programmable RPN/Algebraic scientific calculator watch.” Click here for first picture in gallery.
If you thought the original calculator watch was nerdy, get a load of this DIY gem from designer David Jones. Unfortunately, the project site is still under construction, so a step-by-step tutorial has yet to be developed.