From calculators to simple daily beaters, these are my favorite Casio watches on sale today. Ask any watch nerd what the most affordable watch in their collection is, and they'll almost certainly pull out a Casio. The legendary Japanese brand is one of the few in horology that truly transcends class, race, and nationality. You're just as likely to see “buy anything” watch nerds like John Mayer rocking a six-figure Audemars Piguet or Patek Philippe alongside a G-Shock . Casios just look cool and function well. From on-screen use in everything from Back to the Future to Stranger Things , a Casio deserves a place—or several—in every serious collector's watch box. Casio offers a wide assortment of models that appeal to everyone, at all price points. Here are the favorites that I've seen and tried, from simple classics to advanced modern smartwatches. Be sure to check out our other watch buying guides, including the Best Cheap Watches Under $1,000 , the Best Seiko Sports Watches, and the Best Smartwatches .…