The Dials contain sunray and guilloche finishes, and they are generally shielded by scratch-resistant sapphire crystals. Attached to your scenarios are buttery-sleek Barenia leather-based straps, frequently in the color of your choosing. Complication: Refers to any watch movement over and above the simple monitoring of several hours, minutes and seconds. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/