Steel Gray Longines Master Collection L27934792 Men's Watch with Blue Leather Strap The Longines Master Collection is a combination of classic elegance and excellent quality for those who appreciate exceptional watches. This steel grey Longines watch for men features a 40mm wide case with a silver-tone dial and 60 seconds scale. The watch has blue hands and blue Roman numerals as indexes. You can find the date display at three o'clock. The stylish design is completed by a blue alligator leather strap with 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: L27934792 Case material: stainless steelCase color: steel greyCase diameter: 40 mm Watch thickness: 9.35 mm Strap material: leather (alligator leather on top, calf leather on the bottom)Strap color: blueStrap width: 21 mm Watch weight: 69.4 g Sapphire glass, scratch-free Dial color: silver, blue hands and indexes Date display Water resistance: 30 meters (3 bar) Movement: automaticPower reserve up to 72 hours