Steel Gray Longines Spirit L38204536 Watch with Black Dial COSC Certificate The Longines Spirit watch combines the glory days of aviation with current aesthetic and technical requirements. The Longines Spirit is a highly accurate chronometer watch that has been certified by the Swiss COSC institution. The automatic watch also has Longines' L688.4 movement with an antimagnetic silicone spring. The watch has a power reserve up to 66 hours. This Longines Spirit watch features a 42mm wide grey steel case and a brushed steel strap with polished details. The watch has a black sun-brushed dial and silver-colored numeral indexes with strong luminescence. The seconds hand of the watch and the hands of the chronograph displays stand out in red. The dial is protected by a scratch-resistant sapphire crystal with an anti-reflective coating. Known for its winged hourglass logo, Longines is one of the oldest Swiss manufacturers of quality watches. The selection of the brand, which has been influential since 1832, includes both classic models and sports watches that underline performance. Model number: L38204536 Case material: stainless steelCase color: steel grayCase diameter: 42 mm Watch thickness: 16.5 mmStrap material: stainless steel Strap color: steel grayStrap width: 22 mm Watch weight: 187.9 g Dial color: black Sapphire glass, scratch-free Chronograph functionsDate display Chronometer with COSC certificate Water resistance: 100 meters (30 bar) Movement: automaticPower reserve up to 66 hours