Saw this watch on the show Storage Wars, decided to look it up for info on this, and figured I'd share it here. On the TV show they brought it to a watch dealer who claimed it was worth $1300 (USD) which luckily was greater than the cost of the storage locker that they won the bid on to make a profit.
I always thought it was Casio in the 1980s that came up with the first Calculator Watch, so it was a neat tech history find.
http://en.wikipedia.org/wiki/HP-01
