Kamawatch ‘Hypercolor’ Fashion Timepieces Change Color With Temperature Kamawatch by wholesalewatches - July 24, 20170 Okay, so this is fun. Do you remember those color changing shirts from the 1980s? Now they have watch versions of that by Kamawatch. I know that the watch industry is slow to respond, but did it really require 30 years for this relatively basic chromatic pigment technology to find