REACTOR Men&#39;s 94109 Helium Emerald Green Pearl Two-Tone Sport Watch Durable, accurate Japanese-quartz movement Hardened mineral crystal; super-Luminova coated luminous hands and markers for complete readability in darkness; screw-down crown with crown guards Forged, solid 316L stainless steel case; two-tone bracelet with secure fold-over-push-button-clasp-with-safety Green Mother-of-pearl dial; gold-tone stainless steel stationary bezel; Off-centered seconds sub dial Water resistant to 660 feet (200 M): suitable for recreational scuba diving