Watchmaking expertise stamped with the COSC seal. In Longines’ purest watchmaking tradition, the Record automatic models combine classic elegance and excellence, aspiring to become the spearheads of the brand. And there is no shortage of arguments for these exceptional timepieces, whose movement includes a single-crystal silicon balance spring with unique properties. A first for Longines, it is certified as a “chronometer” by the Swiss Official Chronometer Testing Institute (COSC), a designation awarded to all of the pieces in the Record collection. Stainless steel with Black lacquered polished dial. Dial set with 13 Top Wesselton VS-SI diamonds, for a total of 0.037 carats. Round case shape. Scratch-resistant sapphire crystal, with several layers of anti-reflective coating on underside. Stainless steel with triple safety folding clasp and push-piece opening mechanism. Automatic self-winding mechanical movement beating at 28'800 vibrations per hour, with a power reserve of approximately 45 hours. Functions: Hours, minutes, seconds and date. Water resistance up to 30 meters.