Longines PrimaLuna

The Longines PrimaLuna, reference L8.123.4.97.6, has a 30 mm round case in steel. The watch is set with diamonds. The case measures 9.5 mm thick and 37 mm lug-to-lug, with water resistance rated to 30 metres. Self-winding calibre L592.5 provides up to 45 hours of power reserve and is visible through a transparent case back. A scratch-resistant sapphire crystal covers the dial, with several layers of anti-reflective coating on both sides. A steel bracelet closes with a triple safety folding clasp and a push-piece opening mechanism. The dial includes a date display and central seconds. Polished silvered hands indicate the hours and minutes on the midnight blue mother-of-pearl dial.