Brand: Naviforce Model Number: NF9153 Water Resistant: 3ATM Luminous Part: Hands, Hour Marker Plating Technique: Environmental vacuum electroplating Warranty Period: 1 year Weight: 152g Total Length:24.5cm Case Diameter: 45 mm Case Thickness: 15mm Case Material: Zinc alloy Case Shape: Round Crystal: Reinforced mineral glass Movement Type: Analog Quartz + LCD Digital Caliber: AL21E4 Movement Partner: Japanese seiko Battery: Battery Lifetime: 2 years Strap Material: Stainless steel Clasp Type: Hook BUckle Lug Width: 23mm Strap Width at Buckle: 22mm