Men's Waterproof Resin Strap Analog Digital Sport Watch 3465 Blue Dual-display sport watch featuring day/date, 1/100 chronograph,alarm,calendar,backlight and 30M Water Resistant German black tire pattern resin strap,highly elastic PU case,it makes watch durable,comfortable and shockproof.military style outlook Japanese movement and battery lasts 2-3 years Back light function lasts 3 seconds,easy to read at dark Water resistant to 164 feet (30M),suitable for snorkeling, as well as swimming, not diving