It's a domed acrylic crystal experience, leather-based strap, and a lightweight Construct that will make this view comfortable don each day. Consider: Acrylic crystal just isn't as scratch-resistant as sapphire or mineral crystal; the leather band may possibly demonstrate dress in speedier than predicted. William’s charting, aided from the H4, https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/