o.d.m. Unisex SDD99B-9 Link Series White and Green Programmable Digital Watch Quality and precise Japanese-quartz movement with analog-display Durable acrylic crystal 12 and 24 hr display functions , hypo-allergenic watch Auto EL-Backlight for easy readability Water resistant to 99 feet (30 M): withstands rain and splashes of water, but not showering or submersion