Seen with the caseback, the oscillating mass with the movement is delicately engraved. It is produced from eighteen-karat gold and decorated by hand by using a barley grain sample, completed by guilloche A gold Model encompasses a black dial and black leather strap, and also an 18-karat gold pin-buckle Verbal https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/