Tokyo Flash Men's Quartz Gunmetal-Grey-Stainless-Steel Casual Watch, Color:Grey (Model: TOKYOFLASH-RETROFIT/Gun/GRN) Quartz movement Mineral crystal Case diameter: 37 mm Gunmetal-grey-stainless-steel case; Digital-with-green-light-display dial; Date function Water resistant to 99 feet (30 M): withstands rain and splashes of water, but not showering or submersion