The Dials include sunray and guilloche finishes, and are normally shielded by scratch-resistant sapphire crystals. Hooked up for the situations are buttery-sleek Barenia leather straps, normally in the colour of the picking. Complication: Refers to any view movement over and above The easy tracking of several hours, minutes and seconds. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/