Binary watch and original Nerd Watch here (but the breadboard watch is cooler)
Very daring construction design to put a breadboard on the wrist! I like the look, but I fear those LED bubble displays are very hard to get these days - any pointers appreciated!
There was a bit of a resurgence in these retro display a few years back (and I bought some for fun), but stocks and supplies do seem to have dwindled somewhat - there are NOS ones for sale on ebay, etc. though.