Amazon offers Prime members the Casio Men's Tough Solar Stainless Steel Fitness Watch, model no. STL-S100H-4AVCF, for $19.98 with free shipping. (Non-members can spend $49 to bag free shipping; otherwise, it adds $5.48.) That's the lowest shipped price we could find now by $11, although it was $2 less in January. It features a solar rechargeable battery, stainless steel case, LED light with afterglow, world time with 31 time zones, stopwatch and countdown timers, alarm, and water resistance to 330 feet.