Product specifications Watch Information Band Colour Blue Band Material Stainless Steel Bezel Function Analog Multifunction Bezel Material Zinc Alloy Brand NAVIFORCE Calendar Type Date-Month Case Diameter 45.5 Millimeters Case Material Zinc Alloy Case Thickness 13.5 Millimeters Clasp Double Locking Foldover Clasp Dial Colour Blue Crystal Material Mineral Display Type Chronograph Case Shape Round Model Number NF 9179 Part Number SBE Special Features Chronograph Warranty Type Manufacturer