Longines La Grande Classique de Longines

The La Grande Classique de Longines, reference L4.918.1.91.7, has a 38 mm round case with a red PVD coating. The white dial carries painted Roman numerals alongside black hands. Self-winding calibre L591.5 provides up to 45 hours of power reserve and is visible through a transparent case back. A scratch-resistant sapphire crystal covers the hour and minute display. A red PVD-coated bracelet fastens with a triple safety folding clasp and a push-piece opening mechanism. The bracelet fits between lugs spaced 20 mm apart. The case is 8.1 mm thick and 43 mm lug-to-lug, with water resistance rated to 30 metres.