This 1977 HP LED Calculator Watch Is Probably The Grandaddy Of Today’s Smartwatch
the 1977 Hewlett-Packard HP-01 Chrome Prototype LED Calculator Watch is a gadget of the bygone era which we think any geeks will appreciate. created by HP engineers in 1977, this wrist watch was the most technologically advanced intelligent timepiece that was well ahead of its time and could easily be […]