It's a domed acrylic crystal experience, leather strap, and a light-weight Establish that would make this enjoy relaxed wear each day. Take into account: Acrylic crystal will not be as scratch-resistant as sapphire or mineral crystal; the leather-based band may display use speedier than envisioned. We were happy to provide, https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/