The Dials include things like sunray and guilloche finishes, and are generally guarded by scratch-resistant sapphire crystals. Attached towards the conditions are buttery-easy Barenia leather-based straps, often in the colour within your picking out. Complication: Refers to any watch movement further than The easy monitoring of hrs, minutes and seconds. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/