Invicta Women's 15507 Pro Diver Analog Display Swiss Quartz Two Tone Watch Imported Swiss quartz movement Flame fusion crystal; steel case and bracelet with 18k gold ion-plated stainless steel links Swiss-quartz Movement Case Diameter: 40mm Water resistant to 990 feet (300 M):suitable for scuba diving to a depth of 30 meters for up to 2 hours