NTH DevilRay Automatic Dive Watch. It is a dive watch known for its design inspired by vintage 1970s divers. General Specifications: Case: 43mm diameter, 14.5mm thick, and 46mm lug-to-lug distance. The case is made of 316L stainless steel with a cushion or tonneau shape. Water Resistance: 500 meters (1,640 feet). Crystal: Double-domed anti-reflective sapphire. Bezel: 120-click unidirectional bezel with a sawtooth grip and two different scales—a 12-hour scale and a 60-minute scale. The bezel insert is stainless steel. Lume: The hour markers, hands, and bezel are all lumed with Swiss Super-LumiNova X1 for bright, long-lasting glow. Bracelet: A three-link "Stingray" stainless steel bracelet with a folding, double-locking diver's clasp. Check photos and ask questions prior to purchase. Beautiful watch in excellent condition. Runs great, lightly worn, complete set.