The Longines Master Collection Chronograph Moonphase L2.962.4.73.6 brings an exceptional range of functions to a beautifully traditional design. Its 41mm stainless steel case frames a silver barleycorn-patterned dial adorned with painted Arabic numeral hour markers and elegant blue hands. Scratch-resistant sapphire crystal with anti-reflective coating on both sides protects the display, while a sapphire crystal exhibition case back reveals the mechanical craftsmanship within. The stainless steel bracelet is secured by a triple-safety folding clasp with a push-piece opening mechanism and fine adjustment system. A 27-jewel Swiss automatic mechanical movement beats at 28,800 vibrations per hour and provides up to 66 hours of power reserve. Beyond hours and minutes, the beautifully balanced dial presents small seconds, date, day, month, moon phase, and chronograph functions, including a central chronograph seconds hand and counters for measuring 30 minutes and 12 hours. The case measures 13.8mm thick, has a 21mm lug width, and is water-resistant to 30 metres, while the complete watch weighs 153g. • Powered by the Swiss made Caliber L687.5 automatic movement with 27 jewels and a power reserve of up to 66 hours • Presented on a silver stainless steel bracelet with push button deployment clasp • Scratch-resistant sapphire crystal, with several layers of anti-reflective coating on both sides • 41.0mm case width & 48.6mm case length measuring from lug to lug • 30 metre water resistance