Visible through the caseback, the oscillating mass of your movement is delicately engraved. It really is constructed from 18-karat gold and decorated by hand with a barley grain pattern, completed by guilloche Hailing from Redondo Seaside, California, Sean’s enthusiasm for style and design and all points mechanical started at beginning. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/