Longines La Grande Classique de Longines

The La Grande Classique de Longines, reference L4.512.4.81.2, has a 29 mm round case in steel. The watch is set with diamonds. Case dimensions include a thickness of 4.5 mm and a lug-to-lug length of 33.2 mm; water resistance is rated to 30 metres. Quartz calibre L420.2 powers the watch and uses a RENATA 346 battery. Over the dial is a scratch-resistant sapphire crystal. Polished silvered hands indicate the hours and minutes on the blue mother-of-pearl dial. The strap fits between lugs spaced 16 mm apart. A blue alligator leather strap with a calf leather underside closes with a pin buckle.