Brand: Naviforce Model Number: NF9161 Water Resistant: 3ATM LuminousPart: Hands, Hour Marker Plating Technique: Environmental vacuum electroplating Warranty Period: 1 year Total Length: 240mm Case Diameter: 45 mm Case Thickness: 12mm Case Material: Zinc alloy Case Shape: Round Crystal: Reinforced mineral glass Movement Type: Quartz Calendar Movement Partner: Japanese seiko Battery: SR626SW Strap Material: Stainless Steel Clasp Type: Folding clasp with safety Lug Width: 23mm