The Longines PrimaLuna L8.123.4.71.6 showcases a sunray silver dial with painted Roman numerals and blued steel hands. This 30 mm round stainless steel watch is water-resistant to 3 bar and powered by automatic calibre L592.5, a self-winding mechanical movement beating at 28'800 vibrations per hour, with a monocrystalline silicon balance-spring and a power reserve up to 45 hours. Scratch-resistant sapphire crystal with several layers of anti-reflective coating on both sides fronts a case closed ...