Casio Gold Calculator Watch
I just recently bought this watch because when I was in 5th grade I remembered I wanted one, but instead got the Mickey Mouse watch (Mickey Mouse's head ticks in sync with the seconds). When I asked my mom for the calculator watch (then it was a black version), she told me to save my allowance, which was at the time $2.00 a week). So I saved and saved, but by the time I saved for 5 months, I wanted and ended up purchasing the Fuji Disc camera (which took about a year and three months to save for).
Anyway, I recently found a redux version of this watch. It seems they added a couple of modes the version in the late 80's (it saves telephone numbers too). So far I've used the calculator mode 3 or 4 times, which is easier than pulling your phone out of your purse, and fiddling with the menu. I wish this watch had a digital-compass function (if digital compasses exist), which I found pretty helpful when I visited Paris (awhile back-- and also most people traveling do not use their mobile phones, which have GPS). I saw a modular compass piece at MoMA, through their Destination Japan promotion, but it looked too bulky, and only seem to fit a certain watch band.
I thought this manual was funny because its thickness makes it look super-geeky, but only an eighth of it showed how to use the watch in English. The other 7/8ths were in other languages.