Invicta Men's 4127 II Collection Roman Symphony Watch Quality Japanese-Quartz movement Sapphire-coated-mineral crystal Case diameter: 43 mm 23kt-yellow-gold-plating-stainless-steel case; Mother-of-pearl dial; Day-date-and-moon-phase functions Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving