Case Diameter: 41.7mm Case Thickness: 12.3mm Case Length: 49.5mm Lug Width: 20mm Strap Material: Silicone Strap Crystal: Hardlex Crystal Dial Color: Black Date Calendar LumiBrite Hands and Markers Caliber 4R35 Water Resistant: 200 meters (660 feet) Follows ISO Standards and Is Suitable for Scuba Diving 23 Jewels Power Reserve: Approximately 41 Hours