Introducing the Guess Men's Blue Multi-function Watch. This stylish watch has a 44 mm diameter round case and an 18 mm band width silicone strap. This watch is ideal for any casual event, since it is waterproof to 100 meters and comes with a one-year warranty. The Quartz movement and mineral glass add to its reliability and durability. To keep it looking its best, use a cotton cloth to clean the dial.