Visible throughout the caseback, the oscillating mass from the motion is delicately engraved. It's made from eighteen-karat gold and decorated by hand with a barley grain pattern, performed by guilloche Hailing from Redondo Beach, California, Sean’s passion for layout and all things mechanical started out at beginning. Possessing grown up https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/