DAVE: Ha. One of the problems of owning a $30 Timex is that it costs $9 to get the battery replaced at Touch of Gold in Oakland. I tried to take the back off, but I couldn’t do it.

JIM: To follow up, I got a new Timex Ironman Triathlon watch for Christmas. I needed it. It probably cost about $50-$60, so that makes it by far the most expensive watch I've ever owned. It has 10 different buttons on it!

DAVE: And we had been talking about watches. Nice. Ten different buttons.

JIM: I'll probably never learn how to use them all.

DAVE: That’s a lot of buttons. My watches only have one button. I did figure out how to open the back of the Timex, so I can replace the $6 battery by myself, rather than paying $9 to have someone else do it. It really wasn’t that hard.

JIM: Yeah, it's pretty easy. But if your watch is waterproof, be aware that once you open the back to replace the battery, it's not waterproof any more.

DAVE: There used to be a little rubber gasket on waterproof watches that was impossible to get back in once it came out.