Steel Gray Longines Master Collection L27934596 Men's Watch with Black Dial The Longines Master Collection is a combination of classic elegance and excellent quality for those who appreciate exceptional watches. This steel gray Longines watch for men features a 40mm wide case with a black dial and rotating seconds scale. The watch has silver hands and Roman numerals as indices. You can find the date display at three o'clock. The stylish design is completed by a steel strap with both a brushed and a shiny surface. The strap has a three-fold clasp with buttons. The Longines Masten Collection watch has automatic movements with a power reserve up to 72 hours and the dial is protected by a scratch-resistant sapphire crystal. The background of the watch is also transparent and protected by sapphire glass. Model number: L27934596Case material: stainless steelCase color: steel grayCase diameter: 40 mm Watch thickness: 9.35 mmStrap material: stainless steel Strap color: steel grayStrap width: 21 mm Watch weight: 144.7 g Sapphire glass, scratch-free Dial color: black Date display Water resistance: 30 meters (3 bar) Movement: automaticPower reserve up to 72 hours