Younger kids might benefit from a "time teacher" watch that has clearly marked hour and minute hands. This $10 Batman watch from Amazon is a great example.
If Star Wars is your kid's thing, I've recently seen these inexpensive Star Wars Storm Trooper digital watches at Walmart.
Finally, if your kid is into survival shows like Bear Grylls' Man vs. Wild or Les Stroud's Survivor Man, Casio makes several rugged watches that are adventure ready. Of course, one of the most affordable and practical is the venerable Casio Forester. It has a velcro band, backlighting, and a very affordable price tag. Casio Forester watches make great dog walking watches!
|Casio Forester - Ready for Adventure|
|Casio Tough Solar|