Breitling Watch 309 - WITH SERIAL NUMBERS - Silver Dial - Battery Operated Caliber 77 Quartz Movement - Date Feature - Certificate of Authenticity - Scratch Resistant Glareproof Sapphire Crystal - Steel Case with Blue Diver Pro Rubber Strap - Manufacturer Box & Manual - 500 Meters / 1650 Feet Water Resistant - Uni-Directional Rotating Bezel - Luminiscent Hands & Markers - 33.80mm = 1 1/4" Case, 6" Adjustable Strap - Tang Buckle - Screw Down Crown & Strap - Case Thickness: 12.60mm