Amazon offers its Prime members the Casio Men's Solar Sport Combination Watch, model no. AQ-S810W-1AV, for $32.73 with free shipping. (Non-members can spend $35 to qualify for free shipping; otherwise, it adds $4.48.) That's the lowest total price we could find by $4. Features include solar-powered Japanese quartz movement, resin band and case, and water resistance to 330 feet.