Seen in the caseback, the oscillating mass on the movement is delicately engraved. It is made from 18-karat gold and decorated by hand by using a barley grain sample, accomplished by guilloche A gold Model includes a black dial and black leather strap, and an 18-karat gold pin-buckle The observe https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/