Invicta Lefty Flightchrono / 2771 Giant Watch from Invicta USA. * Model-Name: Lefty * Invicta Reference Number: 2771 * Movement: Swiss Quarz Chronograph * Functions: hrs, min, sec, date, chrono * Tritium glow * ZWhite face * Mineral glass, specially hardened * Crown screwed with 'diver' cover * Size of case: 46 mm * 10 ATM (100 m) waterproof tested * Case in stainless steel * Weight 100 g incl. band