Seen through the caseback, the oscillating mass with the movement is delicately engraved. It truly is constructed from eighteen-karat gold and decorated by hand having a barley grain pattern, carried out by guilloche A gold Model encompasses a black dial and black leather-based strap, together with an 18-karat gold pin-buckle https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/