Casio WQV-1 camera watch.
Introduced in mid-2000, the Casio WQV-1 has the distinction of being the first (digital) camera wristwatch in the world.
The watch has a '1/14 inch monochrome CMOS sensor' -- good for 16 greyscale pictures at 120x120 resolution. Pictures are stored in the 1 megabyte of internal memory, and can only be transferred by IR port.
Bulky as you'd expect from a Casio, and totally made of plastic. Looking and feeling rather cheap, except it wasn't. This watch would set you back a whopping 250 dollars, back in 2000.
My example was acquired on Ebay, in june of 2008. I purchased a New Old Stock example - unused, with box, papers, including unused adapter etc. - for 20 British pounds. (about 40 dollars)
Obviously, I didn't buy it because of the image quality. It's a nice collectible and a piece of tech history in its own right.