While it's said there are no sure things in life, the Rolex Submariner's seeming immunity to depreciation comes close. GO Magazine reports, that like cars, most watches lose value the minute you buy them. But thanks to careful control of supply and enduring cachet (it has appeared in more than eleven James Bond movies), the Submariner (designed for diving and known for their resistance to water) you buy today for a bit more than $5000 will be worth at least that a couple of years from now -- and likely more. The 1968 5512 Submariner chronometer, for instance, originally retailed for less than $500 but sell today for more than $7000.

Certain models from 1953 (the year the watch debuted) that cost about $250 new now go for upwards of $10,000.

Finally, a way to make more money and look good doing it!