It's got a domed acrylic crystal deal with, leather-based strap, and a lightweight Establish that tends to make this look at comfortable use throughout the day. Keep in mind: Acrylic crystal just isn't as scratch-resistant as sapphire or mineral crystal; the leather-based band may possibly present wear faster than envisioned. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/