Authentic Longines Master Collection men's watch model L2.773.4.78.3 or L2-773-4-78-3, featuring a 42mm brushed/polished stainless steel case and brown crocodile leather strap. Silver textured chronograph dial includes day, date, month display and moon phase complication. Equipped with automatic self-winding movement (movement type not specified in details), scratch-resistant sapphire crystal glass. Water resistant to 30 meters / 100 feet. Comes with a 2-year WatchMaxx warranty.