Cheap watch that takes a beating

Casio F-105 Watch

• Replaces: Pretty much any watch you'd need to wear 95% of the time.
• Cost differential: 2x.  And up, depending on what you wear on your wrist.

• Available: You can usually find this watch, or something similar, at any mass merchandiser.  If you're an Amazon.com shopper, you might even find it for under $10 bucks (I did), cheap enough to be a throw-in if you're the type who lumps purchases together for free shipping.

• Why I like it: I've written before about this watch, but let me expand on it for a moment.  This watch has nearly every function you could reasonably expect--and actually use--from a watch.  It keeps quartz-accurate time, it has an alarm, a stopwatch feature and a pretty bright light.  It features a water resistance to 100 meters.  For you non-watch geeks out there, 100 meter water resistance means that it's good for every kind of water activity except SCUBA diving.
  
  What can't it do?  Obviously, not SCUBA.  It doesn't have a countdown timer or bezel (which dive watches do), a surprisingly useful feature if you deal with time limitations such as parking meters or food in the oven.  While the nightlight works well, an analog watch with glow-in-the-dark hands seems more handy to me.  However, I can live with it.
  
  You could argue that you can't wear it on dressy occasions, but I really don't care that much.  Jeez, the President of the United States used to wear a Timex digital watch.  Get over it.

Yeah, that's the 42nd President of the United States.
If he can greet Nelson Mandela with an Ironman watch,
you can wear a cheap Casio to a client meeting.

• Truthfully, lots of digital watches could do the job of this little Casio.  I don't have much experience with other brands, but I have never had any complaints about Casio.  For instance, they sell a similar model called the F-91W, which I've seen for well under $10 (not today, though).  Aside from its sinister reputation, it's pretty much the same thing as the F-105, but with a 50M water resistance rating.  It's probably suitable for pool use and it's cheap enough that you could simply buy a new one if it did leak.  Nevertheless, I like the added assurance of the 100 M rating.
  
  Your mileage may vary, of course.

As always, what cheap products do you know that are worth buying?  Please share!