Brand New Authentic Longines Heritage Avigation Big Eye Black Dial Leather Strap Men's Watch Model L2.816.4.53.2. Stainless Steel Brushed and Polished case with Brown Leather Crocodile strap. Tang clasp. Fixed bezel. Dial description - Silver tone luminous hands and Arabic Numeral hour markers with minute markers around the outer rim and 3 Sub-dials on a Black dial. Automatic-Chronograph movement. Chronograph sub-dials display - 60 Second, 30 Minute, 12 Hours. Powered by Longines Caliber L688.2 engine with 54 hours power reserve. Watch functions - Power Reserve, Hour, Minute, Second, Chronograph. Scratch Resistant Sapphire crystal. Round case shape. Case size - 41mm. Solid case back. 30 Meters - 100 Feet water resistant.