Invicta Men's 15503 Pro Diver Analog Display Swiss Quartz Two Tone Watch Swiss quartz movement Flame fusion crystal; stainless steel case and bracelet with 18k gold ion-plated stainless steel links Swiss-quartz Movement Case Diameter: 50mm Water resistant to 990 feet (300 M):suitable for scuba diving to a depth of 30 meters for up to 2 hours