The Longines La Grande Classique de Longines L4.512.4.51.6 is a quartz watch featuring a 29.00 mm stainless steel case with a sunray black dial. It has painted Roman numerals and silvered polished hands. The watch is equipped with a scratch-resistant sapphire crystal and offers water resistance up to 3 bar. The stainless steel bracelet includes a triple safety folding clasp with a push-piece opening mechanism. Reference number: L4.512.4.51.6.