New St. Moritz Momentum M50 DSS Men's Dive Watch & Underwater Timer for Scuba Divers with Silver Dial & Stainless Steel Band Stainless Steel Band Quartz analog (battery powered, dial and hands) Ultra hard, Sapphire crystal with cyclops for date magnification and inner anti-reflective coating Superluminous hands and indexes 10 Year Battery Life with lithium cell Engineered for diving or regular use in or underwater, with special screw-lock crown Tested to 1650ft (500m) 44.4mm solid steel case Signed screw-dow crown 120-click unidirectional bezel with lumed pip Great for Diving, Sport/Outdoor activities, Yachting, and Watersports/Paddle Sports 6 Year Warranty