The Longines La Grande Classique L4.512.4.51.2 is a quartz watch featuring a 29 mm stainless steel case with a thickness of 4.5 mm. It has a black dial with Roman numeral hour markers and silver-tone hands. The watch is powered by the Longines caliber L420 quartz movement, based on the ETA 282.001. The case is complemented by a black alligator leather strap with a pin buckle. The watch is water-resistant up to 30 meters and is protected by a scratch-resistant sapphire crystal. Reference number: L4.512.4.51.2.