Nicknamed the "Duro" by collectors, the MDV106 offers a genuine dive-watch spec sheet — 200m water resistance and a screw-down crown — at a price most brands reserve for basic quartz watches. A sunburst dial finish gives it more visual depth than its cost suggests, and an anti-reverse rotating bezel handles the actual dive-timing function.

A stainless steel case and screw-lock caseback, engraved with Casio's marlin logo, protect a reliable quartz movement rated for roughly three years per battery. It's not ISO-certified as a professional dive watch, but for swimming, snorkeling, and daily wear it covers the bases most people actually need.