REACTOR Unisex 67601 Oxide Precision Quartz Chronograph Date Watch True unisex style combines stainless steel and ceramic Triple o-ring screw down crown for superior water resistance Secure screw bar case-to-band interface for superior strength Superluminova dial markings and hands; solid 316L marine grade stainless steel Water resistant to 660 feet (200 M): suitable for recreational scuba diving