It's a domed acrylic crystal experience, leather strap, and a light-weight Construct that can make this look at at ease put on during the day. Keep in mind: Acrylic crystal just isn't as scratch-resistant as sapphire or mineral crystal; the leather-based band could possibly demonstrate have on speedier than expected. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/