It's a domed acrylic crystal encounter, leather-based strap, and a light-weight Construct that helps make this look at relaxed put on each day. Have in mind: Acrylic crystal will not be as scratch-resistant as sapphire or mineral crystal; the leather-based band could possibly present dress in more rapidly than anticipated. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/