The Longines Master Collection L2.628.4.77.6 is an automatic watch featuring a 38.5 mm stainless steel case with a transparent sapphire crystal back. It has a silver 'barleycorn' dial adorned with 12 Top Wesselton VS-SI diamonds totaling 0.055 carats. The watch is powered by the Longines Caliber L888, a self-winding mechanical movement operating at 25,200 vibrations per hour, offering a power reserve of up to 72 hours. Functions include hours, minutes, seconds, and a date display at 6 o'clock. The stainless steel bracelet is equipped with a triple safety folding clasp and push-piece opening mechanism. Water resistance is rated at 3 bar (30 meters). Reference number: L2.628.4.77.6.