Casio Men&#39;s EFX700D-1A4V Edifice Gold 700 Series Dual Time Watch Precise timekeeping with quality Japanese-quartz movement Amazon.com Exclusive Casio Model EL back light, stainless-steel case, date display, countdown timer; scratch-resistant sapphire crystal Chronograph, 1/20 second stopwatch Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving