Technical Specifications: American Assembly & Regulation Movement: Seiko Mechaquartz Chronograph VK63Battery Life: ~ 3 Years Case: 42mm excluding crownLug-to-lug: 49mm Thickness: 13.5 mm including domed crystalCrown: 7m screw downCrystal: Double domed sapphire with anti reflective coating Strap: 22mm tapering to...