Longines Sector Dial

The Longines Sector Dial, reference L2.828.4.73.2, has a 38.5 mm round case in steel. The opaline ivory dial carries painted Arabic numerals and indexes alongside blued steel hands. The case is 11 mm thick and 47.6 mm lug-to-lug, with water resistance rated to 30 metres. Self-winding calibre L893.5 provides up to 72 hours of power reserve and beats at 25,200 vibrations per hour. A scratch-resistant sapphire crystal covers the hour and minute display, with several layers of anti-reflective coating on the underside. A blue calf leather strap with a calf leather underside fastens with a pin buckle. Small seconds appears on the dial.