This is an authentic Longines Master Collection men's automatic watch with model number L2.893.4.09.2 featuring a green dial, black alligator leather strap equipped with push-button deployment clasp and foldover mechanism, stainless steel case, Roman numeral hour markers with minute markers on the bezel, scratch-resistant sapphire crystal glass, date function, round 42mm diameter case, approximately 9.64mm thick, transparent case back, and water resistance up to 30 meters (100 feet).